Updated Citation Analysis – ‘Exploring the reach of the Census-based Longitudinal Studies 2010-2017’

(download as a PDF 709kB)

Overview

The Northern Ireland Longitudinal Study, ONS Longitudinal Study (England and Wales), and Scottish Longitudinal Study include a vast range of data relevant to many different types of research question. Their combination of administrative, census and health data across time make them a rich and unique set of resources. Examples of the types of research enabled by these features of the LSs include: Assessing the contributions of the workplace and employment history, the local area, and individual health and social factors from childhood and adulthood to extended working lifeThe role of subject choices in secondary education on further education studies and labour market outcomes and Population characteristics of stigma, condition disclosure and chronic health conditions.

As an exploration of the many ways in which the LSs have been used, CALLS have conducted an analysis of the journal papers produced by LS researchers. This citation analysis demonstrates the impressive range of academic fields to which LS-based research has contributed in the last 7 years. Research featured in over 70 journals, and spanned more than 50 Scopus subject categories.

Research based on the LSs is regularly published in top quality international peer reviewed journals such as Demography, the International Journal of Epidemiology and Population, Space and Place. Eighteen papers included in the citation analysis were published in journals ranked within the top 5 for one of the following SCImago subject areas:

  • Geography, Planning and Development
  • Epidemiology
  • Demography
  • Health (Social Science)
  • Urban Studies
  • Community and Home Care
  • Applied Psychology
  • Pulmonary and Respiratory Medicine
  • Biotechnology

Papers had excellent citation rates indicating the unique contribution LS data offer. Forty papers had been cited 10 or more times, and 13 papers had more than 20 citations.

LS

n papers published

Total citation count

NILS41217 (avg 5.6)
ONS LS70454 (avg 7.2)
SLS43421 (avg 11.1)
All LSs1391018 (avg 8.0)

 

The subject categories of papers using the LSs reflect the strengths of the data that they offer. Whilst the categories were very similar,  ONS LS’s top 5 included ‘Demography’, whereas the SLS and NILS had a higher proportion of ‘Health (social science)’ papers, likely due to their excellent linkages with health data.

Overall the analysis shows the valuable contribution of the NILS, ONS LS and SLS to a diverse range of academic fields including medicine, demography, geography, economics, business, psychology, environmental science and more.

Although we only focus on publications in academic journals in this report, LS research has considerable impact in other formats such as briefing notes, books and presentations to government, and has also formed the basis of a variety of PhD Theses. A full list of outputs can be explored in our outputs database.

The raw data for the analysis can be downloaded at the bottom of this page.

Methods

Using the CALLS Hub outputs database a total of 139 published papers from the period January 2010 – October 2017 were identified from the three LSs. It should be noted that whilst CALLS and the RSUs actively solicit LS users to notify them of all outputs, and also conduct occasional literature searches to maximise capture, it is possible that some further papers exist.

All papers published in journals or regularly produced official publications – such as ONS Population Trends – were included. We did not include working papers in this analysis. Citation counts were gathered from Scopus, taking the final counts as of 21 November 2017. Impact Factors were taken from the Scopus project SCImago using the SJR2 indicator.

Results

The LSs combined

Of the 139 papers identified, 16 were from non-peer-reviewed journals such as Population Trends. Ten papers used more than one LS for their analysis. (see figure 1)

figure 1. Number of published papers per LS, Jan 2010 – October 2017. n = 139

Papers from the three LSs were published in a total of 73 different journals, spanning 52 SCImago Subject Categories in 13 Subject Areas (figure 2). SJR Impact Factors for the journals ranged from 0.104 to 10.113, with an average of 1.573.

figure 2: Percentage of published papers by SCImago Subject Area

figure 2: Number of LS papers published by SCImago Subject Area [CLICK TO ENLARGE]

The 5 most frequent subject categories for LS papers were:

  1. Public Health, Environment & Occupational Health (39 papers)
  2. Geography, Planning & Development (27 papers)
  3. Medicine(misc) (26 papers)
  4. Health(social science) (22 papers)
  5. Epidemiology (21 papers)

The ten most cited papers from the three LSs were:

LSyearAuthorsPaper titleScopus Citation countJournalJournal Impact Factor
SLS2010van Ham, M. & Manley, D.The effect of neighbourhood housing tenure mix on labour market outcomes: a longitudinal investigation of neighbourhood effects74Journal of Economic Geography3.083
ONS LS2013Clark, D. & Royer, H.The Effect of Education on Adult Mortality and Health: Evidence from Britain67American Economic Review10.113
SLS2011Boyle, P., Feng, Z. & Raab, G.Does widowhood increase mortality risk? Comparing different causes of spousal death to test for selection effects37Epidemiology2.382
SLS2013Spijker, J. & MacInnes, J.Population ageing: the timebomb that isn’t?36BMJ2.064
ONS LS2010Grundy, E. & Tomassini, C.Marital history, health and mortality among older men and women in England and Wales29BMC Public Health1.245
NILS2011O’Reilly, D., Rosato, M., Catney, G., Johnston, F. & Brolly, M.Cohort description: The Northern Ireland Longitudinal Study (NILS)26International Journal of Epidemiology3.222
SLS2014Gaye, A., Marcon, Y., Iseva, J. et alDataSHIELD: taking the analysis to the data, not the data to the analysis24International Journal of Epidemiology4.562
ONS LS2013Elliot, P., Shaddick, G., Douglass, M. et alAdult Cancers Near High-voltage Overhead Power Lines23Epidemiology2.759
NILS2010Connolly, S., O’Reilly, D. & Rosato, M.House value as an indicator of cumulative wealth is strongly related to morbidity and mortality risk in older people: a census-based cross-sectional and longitudinal study23International Journal of Epidemiology2.563
NILS, ONS LS & SLS2010Young, H., Grundy, E., O’Reilly, D. & Boyle, P.Self-rated health and mortality in the UK: results from the first comparative analysis of the England and Wales, Scotland, and Northern Ireland Longitudinal Studies23Population Trends0.262

 Northern Ireland Longitudinal Study

During the period January 2010 to October 2017, a total of 41 journal papers were found which had used NILS data, including 3 paper which had used all 3 LSs and one which used the SLS and NILS. Five NILS publications appeared journals with top-5 ranked impact factor.

NILS journal papers were published in 27 different journals, spanning 13 SCImago Subject Areas and 33 Subject Categories (see below). SJR Impact Factors for the papers ranged from 0.216 to 4.914, with an average of 1.631.

figure 3: Number of NILS papers published by SCImago Subject Area

figure 3: Number of NILS papers published by SCImago Subject Area [CLICK TO ENLARGE]

The 5 most frequent subject categories for NILS papers were:

  1. Public Health, Environmental & Occupational Health (15 papers)
  2. Geography, Planning & Development (10 papers)
  3. Health(social science) (10 papers)
  4. Epidemiology (7 papers)
  5. Medicine(misc) (5 papers)

The 10 most cited NILS papers were:

yearAuthorsPaper titleScopus Citation countJournalJournal Impact Factor
2011O’Reilly, D., Rosato, M., Catney, G. et alCohort description: The Northern Ireland Longitudinal Study (NILS)26International Journal of Epidemiology3.222
2010Connolly, S., O’Reilly, D. & Rosato, M.House value as an indicator of cumulative wealth is strongly related to morbidity and mortality risk in older people: a census-based cross-sectional and longitudinal study23International Journal of Epidemiology2.563
2010Young, H., Grundy, E., O’Reilly, D. & Boyle, P.Self-rated health and mortality in the UK: results from the first comparative analysis of the England and Wales, Scotland, and Northern Ireland Longitudinal Studies23Population Trends0.262
2011McCann, M., Donnelly, M., & O’Reilly, D.Living arrangements, relationship to people in the household and admission to care homes for older people17Age and Ageing1.666
2011McCann, M., Grundy, E. & O’Reilly, D.Why is housing tenure associated with a lower risk of admission to a nursing or residential home? Wealth, health and the incentive to keep ‘my home’14Journal of Epidemiology & Community Health1.649
2011Connolly, S., O’Reilly, D., Rosato, M. & Cardwell, C.Area of residence and alcohol-related mortality risk: a five-year follow-up study14Addiction2.220
2014Stockdale, A. & Catney, G.A Life Course Perspective on Urban–Rural Migration: the Importance of the Local Context12Population, Space and Place1.385
2010O’Reilly, D. & Rosato, M.Dissonances in self-reported health and mortality across denominational groups in Northern Ireland11Social Science and Medicine1.652
2013O’Reilly, D. & Rosato, M.Worked to death? A census-based longitudinal study of the relationship between the numbers of hours spent working and mortality risk11International Journal of Epidemiology4.187
2012Shuttleworth, I., Barr, P.J. & Gould, M.Does Internal Migration in Northern Ireland Increase Religious and Social Segregation? Perspectives from the Northern Ireland Longitudinal Study (NILS) 2001–20079Population, Space & Place1.667

ONS LS

During the period in question, 70 journal papers were identified as having been produced from ONS LS projects (including 9 papers which also used other LSs). Of these, 14 appeared in non peer-reviewed journals. Nine papers appeared in top-5 ranked journals.

ONS LS papers appeared in 42 journals, and covered 27 SCImago Subject Categories in 9 Subject Areas. SJR Impact Factors for the journals ranged from 0.104 to 10.113 with an average of 1.443.

figure 4: Number of ONS LS papers published by SCImago Subject Area

figure 4: Number of ONS LS papers published by SCImago Subject Area [CLICK TO ENLARGE]

The most frequent subject categories in which ONS LS papers appeared were:

  1. Medicine(misc) (15 papers)
  2. Public Health, Environmental & Occupational Health (14 papers)
  3. Demography (12 papers)
  4. Geography, Planning & Development (11 papers)
  5. Epidemiology (11 papers)

The most cited ONS LS papers were:

yearAuthorsPaper titleScopus Citation countJournalJournal Impact Factor
2013Clark, D. & Royer, H.The Effect of Education on Adult Mortality and Health: Evidence from Britain67American Economic Review10.113
2010Grundy, E. & Tomassini, C.Marital history, health and mortality among older men and women in England and Wales29BMC Public Health1.245
2013Elliot, P., Shaddick, G., Douglass, M. et alAdult Cancers Near High-voltage Overhead Power Lines23Epidemiology2.759
2010Young, H., Grundy, E., O’Reilly, D. & Boyle, P.Self-rated health and mortality in the UK: results from the first comparative analysis of the England and Wales, Scotland, and Northern Ireland Longitudinal Studies23Population Trends0.262
2011Riva, M., Curtis, S., Norman, P.Residential mobility within England and urban-rural inequalities in mortality22Social Science and Medicine1.819
2012Blomgren J., Martikainen P., Grundy E. & Koskinen S.Marital history 1971-91 and mortality 1991-2004 in England & Wales and Finland18Journal of Epidemiology & Community Health1.590
2011Popham, F., & Boyle, P.J.Is there a ‘Scottish effect’ for mortality? Prospective observational study of census linkage studies16Journal of Public Health0.891
2013Scott, A.P. & Timæus, I.M.Mortality differentials 1991−2005 by self-reported ethnicity: findings from the ONS Longitudinal Study14Journal of Epidemiology & Community Health1.881
2011Webb, R.T., Marshall, C.E. & Abel, K.M.Teenage motherhood and risk of premature death: long-term follow-up in the ONS Longitudinal Study13Psychological Medicine3.192
2013Ramsay, S., Grundy, E. & O’Reilly, D.The relationship between informal caregiving and mortality: an analysis using the ONS Longitudinal Study of England and Wales13Journal of Epidemiology & Community Health1.881
2013Blackburn, C.M., Spencer, N.J. & Read, J.M.Is the onset of disabling chronic conditions in later childhood associated with exposure to social disadvantage in earlier childhood? A prospective cohort study using the ONS Longitudinal Study for England and Wales13BMC Pediatrics1.119

Scottish Longitudinal Study

During the period January 2010 – October 2017, 43 SLS-based journal papers were identified (including 10 papers which also used other LSs). Of these, 2 appeared in non peer-reviewed journals. Four papers were published in top-5 ranked journals.

The SLS papers were published in 33 different journals, spanning 32 SCImago Subject Categories in 12 Subject Areas. SJR Impact Factors for the journals ranged from 0.173 to 5.895, with an average of 1.466.

figure 5: Number of SLS papers published by SCImago Subject Area

figure 5: Number of SLS papers published by SCImago Subject Area [CLICK TO ENLARGE]

SLS papers appeared most frequently under the following subject categories:

  1. Public Health, Environmental & Occupational Health (13 papers)
  2. Medicine(misc) (8 papers)
  3. Geography, Planning & Development (7 papers)
  4. Health(social science) (7 papers)
  5. Epidemiology (4 papers)
  6. Agricultural and Biological Sciences (misc) (4 papers)
  7. Biochemistry, Genetics & Molecular Biology (4 papers)

The 10 most cited SLS papers were:

yearAuthorsPaper titleScopus Citation countJournalJournal Impact Factor
2010van Ham, M. & Manley, D.The effect of neighbourhood housing tenure mix on labour market outcomes: a longitudinal investigation of neighbourhood effects74Journal of Economic Geography3.083
2011Boyle, P., Feng, Z. & Raab, G.Does widowhood increase mortality risk? Comparing different causes of spousal death to test for selection effects37Epidemiology2.382
2013Spijker, J. & MacInnes, J.Population ageing: the timebomb that isn’t?36BMJ2.064
2014Gaye, A., Marcon, Y., Iseva, J. et alDataSHIELD: taking the analysis to the data, not the data to the analysis24International Journal of Epidemiology4.562
2010Young, H., Grundy, E., O’Reilly, D. & Boyle, P.Self-rated health and mortality in the UK: results from the first comparative analysis of the England and Wales, Scotland, and Northern Ireland Longitudinal Studies23Population Trends0.262
2012Bailey, N.How spatial segregation changes over time: sorting out the sorting processes21Environment and Planning A1.456
2015Mackenbach, J.P., Kulhánová, I., Bopp, M. et alInequalities in Alcohol-Related Mortality in 17 European Countries: A Retrospective Analysis of Mortality Registers21PLoS Medicine5.895
2010Boyle, P.J., Popham, F. & Norman, P.The Scottish excess in mortality compared to the English and Welsh: is it a country of residence or country of birth excess?19Health & Place1.297
2014Eikemo, T.A., Hoffman, R., Kulik, M.C. et alHow can inequalities in mortality be reduced? A quantitative analysis of 6 risk factors in 21 European populations17PLoS ONE1.545
2011Popham, F., & Boyle, P.J.Is there a ‘Scottish effect’ for mortality? Prospective observational study of census linkage studies16Journal of Public Health0.891
2013Kulik, M.C., Menvielle, G., Eikemo, T.A. et alEducational Inequalities in Three Smoking-Related Causes of Death in 18 European Populations16Nicotine & Tobacco Research1.388

Explore the full database of LS outputs

Raw data (Excel, 83kB)

(download as a PDF 958kB)

Overview

The Northern Ireland Longitudinal Study, ONS Longitudinal Study (England and Wales), and Scottish Longitudinal Study include a vast range of data relevant to many different types of research question. Their combination of administrative, census and health data across time make them a rich and unique set of resources. Examples of the types of research enabled by these features of the LSs include: The role of subject choices in secondary education on further education studies and labour market outcomes and Population characteristics of stigma, condition disclosure and chronic health conditions.

As an exploration of the many ways in which the LSs have been used, CALLS have conducted an analysis of the journal papers produced by LS researchers.

This citation analysis demonstrates the impressive range of academic fields to which LS-based research has contributed in the last 6 years. Research featured in almost 60 journals, and spanned more than 40 Scopus subject categories.

Research based on the LSs is regularly published in top quality international peer reviewed journals such as Demography, the International Journal of Epidemiology and Population, Space and Place. Fifteen papers in the citation analysis were published in journals ranked within the top 5 for their field (articles ranked by SJR Impact Rating for the relevant subject category in the publication year).

LS

n papers published

Total citation count

NILS29119 (avg 4.1)
ONS LS51264 (avg 5.2)
SLS32259 (avg 8.1)
All LSs106588 (avg 5.6)

Papers had excellent citation rates indicating the acknowledgement of the unique contributions LS data offer. Papers published within the last 2-3 years were amongst the most highly cited. Eighteen papers had been cited 10 or more times.

The subject areas of papers using the LSs reflect the strengths of the data that they offer: SLS and NILS had a higher proportion of health-related papers, likely due to their excellent linkages with health data. Looking at subject categories for the LSs also reflect these variations: whilst the categories were very similar, ONS LS’s top 5 included ‘Demography’, whereas the SLS and NILS included ‘Health(social science)’.

Overall the analysis shows the valuable contribution of the NILS, ONS LS and SLS to a diverse range of academic fields including medicine, demography, geography, economics, business, psychology, environmental science and more.

Although we only focus on publications in academic journals here, LS research has considerable impact in other formats such as briefing notes, books and presentations to government, and has also formed part of a variety of PhD Theses. The full list of outputs can be explored in our Outputs database.

The raw data for the analysis can be downloaded at the bottom of this page.

Methods

Using the CALLS Hub outputs database a total of 106 published papers from the period January 2010 – May 2016 were identified from the three LSs. It should be noted that whilst CALLS and the RSUs actively solicit LS users to record all outputs, and also conducts literature searches to maximise capture, it is possible that some further papers exist.

All papers published in journals or regularly produced official publications – such as ONS Population Trends – were included. We did not include working papers in this analysis. Citation counts were gathered from Scopus, taking the final counts as of 30 June 2016. Impact Factors were taken from the Scopus project SCImago using the SJR2 indicator.

Results

The LSs combined

Of the 106 papers identified, 16 were from non-peer-reviewed journals such as Population Trends. Four papers used more than one LS for their analysis. (see figure 1)

fig-1

figure 1. Number of published papers per LS, Jan 2010 – May 2016. n = 106

Papers from the three LSs were published in a total of 59 different journals, spanning 41 SCImago Subject Categories in 11 Subject Areas (figure 2). SJR Impact Factors for the papers ranged from 0.128 to 9.893, with an average of 1.577.

figure 2: Percentage of published papers by SCImago Subject Area

figure 2: Number of LS papers published by SCImago Subject Area [CLICK TO ENLARGE]

The 5 most frequent subject categories for LS papers were:

  1. Public Health, Environment & Occupational Health (30 papers)
  2. Medicine(misc) (25 papers)
  3. Geography, Planning & Development (20 papers)
  4. Epidemiology (17 papers)
  5. Health(social science) (16 papers)

The ten most cited papers from the three LSs were:

LSyearAuthorsPaper titleScopus Citation countJournalJournal Impact Factor
SLS2010van Ham, M. & Manley, D.The effect of neighbourhood housing tenure mix on labour market outcomes: a longitudinal investigation of neighbourhood effects64Journal of Economic Geography3.050
ONS LS2013Clark, D. & Royer, H.The Effect of Education on Adult Mortality and Health: Evidence from Britain37American Economic Review9.893
SLS2011Boyle, P., Feng, Z. & Raab, G.Does widowhood increase mortality risk? Comparing different causes of spousal death to test for selection effects31Epidemiology2.325
ONS LS2010Grundy, E. & Tomassini, C.Marital history, health and mortality among older men and women in England and Wales19BMC Public Health1.180
NILS, ONS LS & SLS2010Young, H., Grundy, E., O’Reilly, D. & Boyle, P.Self-rated health and mortality in the UK: results from the first comparative analysis of the England and Wales, Scotland, and Northern Ireland Longitudinal Studies18Population Trends0.255
NILS2010Connolly, S., O’Reilly, D. & Rosato, M.House value as an indicator of cumulative wealth is strongly related to morbidity and mortality risk in older people: a census-based cross-sectional and longitudinal study17International Journal of Epidemiology2.443
SLS2010Boyle, P.J., Popham, F. & Norman, P.The Scottish excess in mortality compared to the English and Welsh: is it a country of residence or country of birth excess?16Health & Place1.199
ONS LS2011Riva, M., Curtis, S., Norman, P.Residential mobility within England and urban-rural inequalities in mortality16Social Science and Medicine1.743
ONS LS2013Elliot, P., Shaddick, G., Douglass, M. et alAdult Cancers Near High-voltage Overhead Power Lines16Epidemiology2.729
SLS2012Bailey, N.How spatial segregation changes over time: sorting out the sorting processes15Environment & Planning A1.446

 Northern Ireland Longitudinal Study

During the period January 2010 to May 2016, a total of 29 journal papers were found which had used NILS data, including one paper which had used all 3 LSs. Five NILS publications appeared journals with top-5 ranked impact factor.

NILS journal papers were published in 18 different journals, spanning 8 SCImago Subject Areas and 22 Subject Categories (see below). SJR Impact Factors for the papers ranged from 0.219 to 4.381, with an average of 1.632.

figure 3: Number of NILS papers published by SCImago Subject Area

figure 3: Number of NILS papers published by SCImago Subject Area [CLICK TO ENLARGE]

The 5 most frequent subject categories for NILS papers were:

  1. Public Health, Environmental & Occupational Health (11 papers)
  2. Geography, Planning & Development (7 papers)
  3. Health(social science) (7 papers)
  4. Epidemiology (6 papers)
  5. Medicine(misc) (5 papers)

The 10 most cited NILS papers were:

yearAuthorsPaper titleScopus Citation countJournalJournal Impact Factor
2010Young, H., Grundy, E., O’Reilly, D. & Boyle, P.Self-rated health and mortality in the UK: results from the first comparative analysis of the England and Wales, Scotland, and Northern Ireland Longitudinal Studies18Population Trends0.255
2010Connolly, S., O’Reilly, D. & Rosato, M.House value as an indicator of cumulative wealth is strongly related to morbidity and mortality risk in older people: a census-based cross-sectional and longitudinal study17International Journal of Epidemiology2.443
2011McCann, M., Donnelly, M., & O’Reilly, D.Living arrangements, relationship to people in the household and admission to care homes for older people12Age and Ageing1.592
2011O’Reilly, D., Rosato, M., Catney, G. et alCohort description: The Northern Ireland Longitudinal Study (NILS)11International Journal of Epidemiology3.116
2011McCann, M., Grundy, E. & O’Reilly, D.Why is housing tenure associated with a lower risk of admission to a nursing or residential home? Wealth, health and the incentive to keep ‘my home’10Journal of Epidemiology & Community Health1.575
2011Connolly, S., O’Reilly, D., Rosato, M. & Cardwell, C.Area of residence and alcohol-related mortality risk: a five-year follow-up study9Addiction2.199
2010O’Reilly, D. & Rosato, M.Dissonances in self-reported health and mortality across denominational groups in Northern Ireland6Social Science and Medicine1.531
2011Connolly, S., Rosato, M. & O’Reilly, D.The effect of population movement on the spatial distribution of socio-economic and health status: Analysis using the Northern Ireland mortality study6Health & Place1.344
2014Stockdale, A. & Catney, G.A Life Course Perspective on Urban–Rural Migration: the Importance of the Local Context6Population, Space and Place1.339
2011Kinnear, H., Rosato, M., Mairs, A. et alThe low uptake of breast screening in cities is a major public health issue and may be due to organisational factors: A Census-based record linkage study6The Breast0.906

ONS LS

During the period in question, 51 journal papers were identified as having been produced from ONS LS projects (including 4 papers which also used other LSs). Of these, 14 appeared in non peer-reviewed journals. Seven papers appeared in top-5 ranked journals.

ONS LS papers appeared in 33 journals, and covered 20 SCImago Subject Categories in 7 Subject Areas. SJR Impact Factors for ONS LS papers ranged from 0.128 to 9.893 with an average of 1.453.

figure 4: Number of ONS LS papers published by SCImago Subject Area

figure 4: Number of ONS LS papers published by SCImago Subject Area [CLICK TO ENLARGE]

The most frequent subject categories in which ONS LS papers appeared were:

  1. Medicine(misc) (14 papers)
  2. Public Health, Environmental & Occupational Health (11 papers)
  3. Epidemiology (8 papers)
  4. Geography, Planning & Development (7 papers)
  5. Demography (7 papers)

The most cited ONS LS papers were:

yearAuthorsPaper titleScopus Citation countJournalJournal Impact Factor
2013Clark, D. & Royer, H.The Effect of Education on Adult Mortality and Health: Evidence from Britain37American Economic Review9.893
2010Grundy, E. & Tomassini, C.Marital history, health and mortality among older men and women in England and Wales19BMC Public Health1.180
2010Young, H., Grundy, E., O’Reilly, D. & Boyle, P.Self-rated health and mortality in the UK: results from the first comparative analysis of the England and Wales, Scotland, and Northern Ireland Longitudinal Studies18Population Trends0.255
2011Riva, M., Curtis, S., Norman, P.Residential mobility within England and urban-rural inequalities in mortality16Social Science and Medicine1.743
2013Elliot, P., Shaddick, G., Douglass, M. et alAdult Cancers Near High-voltage Overhead Power Lines16Epidemiology2.729
2012Blomgren J., Martikainen P., Grundy E. & Koskinen S.Marital history 1971-91 and mortality 1991-2004 in England & Wales and Finland14Journal of Epidemiology & Community Health1.550
2011Popham, F., & Boyle, P.J.Is there a ‘Scottish effect’ for mortality? Prospective observational study of census linkage studies11Journal of Public Health0.851
2013Scott, A.P. & Timæus, I.M.Mortality differentials 1991−2005 by self-reported ethnicity: findings from the ONS Longitudinal Study10Journal of Epidemiology & Community Health1.845
2013Blackburn, C.M., Spencer, N.J. & Read, J.M.Is the onset of disabling chronic conditions in later childhood associated with exposure to social disadvantage in earlier childhood? A prospective cohort study using the ONS Longitudinal Study for England and Wales9BMC Pediatrics1.086
2012Riva, M. & Curtis, S.Long term local area employment rates as predictors of individual mortality and morbidity: a prospective study in England spanning more than two decades9Journal of Epidemiology & Community Health1.550
2011Akinwale, B., Lynch, K., Wiggins, R. et alWork, permanent sickness and mortality risk: a prospective cohort study of England and Wales, 1971-20069Journal of Epidemiology & Community Health1.575

Scottish Longitudinal Study

During the period January 2010 – May 2016, 32 SLS-based journal papers were identified (including 4 papers which also used other LSs). Of these, 2 appeared in non peer-reviewed journals. Three papers were published in top-5 ranked journals.

The SLS papers were published in 26 different journals, spanning 23 SCImago Subject Categories in 8 Subject Areas. Impact Factors for the papers ranged from 0.226 to 5.667, with an average of 1.6.

figure 5: Percentage of SLS papers published by SCImago Subject Area

figure 5: Percentage of SLS papers published by SCImago Subject Area [CLICK TO ENLARGE]

SLS papers appeared most frequently under the following subject categories:

  1. Public Health, Environmental & Occupational Health (9 papers)
  2. Medicine(misc) (8 papers)
  3. Geography, Planning & Development (6 papers)
  4. Health(social science) (5 papers)
  5. Epidemiology (3 papers)

The 10 most cited SLS papers were:

yearAuthorsPaper titleScopus Citation countJournalJournal Impact Factor
2010van Ham, M. & Manley, D.The effect of neighbourhood housing tenure mix on labour market outcomes: a longitudinal investigation of neighbourhood effects64Journal of Economic Geography3.050
2011Boyle, P., Feng, Z. & Raab, G.Does widowhood increase mortality risk? Comparing different causes of spousal death to test for selection effects31Epidemiology2.325
2010Young, H., Grundy, E., O’Reilly, D. & Boyle, P.Self-rated health and mortality in the UK: results from the first comparative analysis of the England and Wales, Scotland, and Northern Ireland Longitudinal Studies18Population Trends0.255
2010Boyle, P.J., Popham, F. & Norman, P.The Scottish excess in mortality compared to the English and Welsh: is it a country of residence or country of birth excess?16Health & Place1.199
2012Bailey, N.How spatial segregation changes over time: sorting out the sorting processes15Environment and Planning A1.446
2013Spijker, J. & MacInnes, J.Population ageing: the timebomb that isn’t?14BMJ2.443
2011Popham, F., Boyle, P., O’Reilly, D. & Leyland, A.H.Selective internal migration. Does it explain Glasgow’s worsening mortality record?12Health & Place1.344
2011Popham, F., & Boyle, P.J.Is there a ‘Scottish effect’ for mortality? Prospective observational study of census linkage studies11Journal of Public Health0.851
2014Gaye, A., Marcon, Y., Isaeva, J. et alDataSHIELD: taking the analysis to the data, not the data to the analysis9International Journal of Epidemiology4.353
2013Kulik, M.C., Menvielle, G., Eikemo, T.A. et alEducational Inequalities in Three Smoking-Related Causes of Death in 18 European Populations9Nicotine & Tobacco Research1.354

Explore the full database of LS outputs

Raw data (Excel, 82kB)

On Friday 18th March we held the largest of our UK LS Roadshows to date and we hope the audience enjoyed the day as much as we did.

The first part of the Roadshow showcased research examples from all three LSs – the Scottish Longitudinal Study, Northern Ireland Longitudinal Study and ONS LS, and you can download slides here:

Pathways between socioeconomic disadvantage and growth in the Scottish Longitudinal Study, 1991-2001 (PDF 4MB)

Dr Richard Silverwood, London School of Hygiene and Tropical Medicine

Ethnic differences in intragenerational social mobility between 1971 and 2011

Dr Saffron Karlsen, University of Bristol

Are Informal Caregivers in Northern Ireland more likely to suffer from Anxiety and Depression? A Northern Ireland Longitudinal (NILS) Data Linkage-Study

Dr Stefanie Doebler, Queen’s University Belfast

On Nov 10th, our UK LS Roadshow moved to Bristol as part of the ESRC Festival of Social Science.

The first part of our Roadshow showcased some of the different types of research that the ONS LS for England & Wales has been used for, and you can download the slides here:

Family size and educational attainment in England and Wales

Prof Tak Wing Chan, University of Warwick

Overall and Cause-specific Mortality differences by Partnership status in 21st Century England and Wales (PDF 645 kB)

Sebastian Franke, University of Liverpool

Ethnic differences in intragenerational social mobility between 1971 and 2011

Dr Saffron Karlsen, University of Bristol

On Thursday 6th March 2014 CALLS Hub organised a very successful launch event to mark the linkage of 2011 Census data to the UK LSs on behalf of the LSs, ONS, NISRA, NRS and ESRC.  This was held at Church House, Westminster, and over the day a total of 120 people attended.

A special morning event was introduced by Prof Paul Boyle (CEO of ESRC), and the linkage officially announced by Sir Andrew Dilnot (Chair, UK Statistics Authority).  We were honoured to hear how highly regarded the LSs are held.

You can see some of the tweets from the day in our Storify roundup, and speaker slides and handouts from the day can be downloaded below.

Morning session

Afternoon session

Adam Dennett, UCL

As we head into a new year, we draw closer to the end of the SYLLS project. Starting in April 2013, the project has been run as a joint venture between the three Longitudinal Studies Research Support Units (RSUs) and the CALLS-Hub, with the aim of generating Synthetic Longitudinal data which are not subject to the same access restrictions as the real Census-based longitudinal microdata for England, Wales, Scotland and Northern Ireland.

The project has been split between teams based at CeLSIUS at UCL and the SLS-DSU in Edinburgh / St Andrews. The London team have been tasked with generating the ‘Synthetic Spine’ dataset. This is a partial replication of the full set of individuals contained in the 1991 LSs of England and Wales, Scotland and Northern Ireland, who then were also enumerated in the 2001 Census. The replication is partial as we have not attempted to synthesise every variable contained in the LSs for every individual, rather we have focused on a selection of some of the most frequently requested variables in previous LS-based research projects (age, sex, ethnicity, health, births, deaths, geography).

In order to generate the synthetic spine dataset, we have used publicly available data from the 1991 Samples of Anonymised records (SARs) as our base. The SARs are similar to the LSs in that they are microdata records and so are prefect for this task. A bespoke microsimulation model has been built by Belinda Wu to generate the synthetic spine from the SARs data. We began with England and Wales: A baseline population for the 1991 synthetic LS was generated by constraining aggregated (local authority) area level from the SARs to similar area level data from the LS using the tried-and-tested iterative proportional fitting technique – individuals were then sampled from this new data set to build our synthetic LS population. Once the 1991 baseline population is created, transitional probabilities are calculated from the LS to age our simulated individuals on 10 years and give them the same characteristics that we would see for those LS members enumerated in both the 1991 and 2001 Censuses.

The England and Wales LS Synthetic Spine is now complete; we are currently working on finishing a similar dataset for the SLS and will soon be tackling the Northern Ireland LS. Northern Ireland is a slightly different case as the 1991 to 2001 link has not yet been completed, but as the NILS sample is around a quarter of the resident population, the aggregate distributions are likely to be very similar to the distributions for the full Census. We will therefore use the 1991 Census distributions to generate our 1991 baseline and calculate the transitions to 2001 using our microsimulation software as soon as the link project is complete.

While the London team have been beavering away on the synthetic spine, the team based in Scotland have been working feverishly on the other half of the synthetic project. The second half of the project is approaching the generation of synthetic data from a different angle entirely: rather than attempting to create a large, general use dataset, here we are tailoring synthetic data to the individual needs of the user. Very soon, if you formulate a project and submit a request to access data from any of the national LSs, you will be asked if you would like to also receive a bespoke, fully synthetic version of your specific data request to work with as you wish on your own computer – something which is not possible with the real data.

The bespoke data are generated using a new R package called ‘synthpop’ developed by Beata Nowok and Gillian Raab in the Scotland team. Synthpop is a multiple synthesis package which allows user support officers to quickly generate fully synthetic versions of the data requested by the user. The data are generated through a series of models which estimate the values of one variable from the values of all others in the dataset sequentially. One of the benefits of this approach is that the resulting data are statistically equivalent to the real data, despite containing no real values.

We are now in the process of testing the synthpop package, with the Edinburgh team coming to visit London and the ONS LS virtual microdata lab to train the CeLSIUS user support officers and test the package on different data. A similar visit to Belfast and the NILS-RSU ‘safe-setting’ is scheduled shortly after that.

On the 6th of March we will be very excited to launch both Synthetic data products at the UK LS 2011 Census Linkage Launch event, and we hope to be able to provide user access to both the synthetic spine and bespoke synthetic tabulations very shortly afterwards.

We recommend clicking the button in the bottom right corner to view full screen. You can also view the Prezi at Prezi.com

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