Assessing the representativeness of population-sampled health surveys through linkage to administrative data on alcohol-related outcomes

Gorman, E., Leyland, A. H. , McCartney, G., White, I. R., Katikireddi, S. V. , Rutherford, L., Graham, L. and Gray, L. (2014) Assessing the representativeness of population-sampled health surveys through linkage to administrative data on alcohol-related outcomes. American Journal of Epidemiology, 180(9), pp. 941-948. (doi:10.1093/aje/kwu207)

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Publisher's URL: http://dx.doi.org/10.1093/aje/kwu207

Abstract

Health surveys are an important resource for monitoring population health, but selective nonresponse may impede valid inference. This study aimed to assess nonresponse bias in a population-sampled health survey in Scotland, with a focus on alcohol-related outcomes. Nonresponse bias was assessed by examining whether rates of alcohol-related harm (i.e., hospitalization or death) and all-cause mortality among respondents to the Scottish Health Surveys (from 1995 to 2010) were equivalent to those in the general population, and whether the extent of any bias varied according to sociodemographic attributes or over time. Data from consenting respondents (aged 20–64 years) to 6 Scottish Health Surveys were confidentially linked to death and hospitalization records and compared with general population counterparts. Directly age-standardized incidence rates of alcohol-related harm and all-cause mortality were lower among Scottish Health Survey respondents compared with the general population. For all years combined, the survey-to-population rate ratios were 0.69 (95% confidence interval: 0.61, 0.76) for the incidence of alcohol-related harm and 0.89 (95% confidence interval: 0.83, 0.96) for all-cause mortality. Bias was more pronounced among persons residing in more deprived areas; limited evidence was found for regional or temporal variation. This suggests that corresponding underestimation of population rates of alcohol consumption is likely to be socially patterned.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Gray, Dr Linsay and Graham, Dr Lesley and Gorman, Ms Emma and Katikireddi, Dr Vittal and Leyland, Professor Alastair
Authors: Gorman, E., Leyland, A. H., McCartney, G., White, I. R., Katikireddi, S. V., Rutherford, L., Graham, L., and Gray, L.
College/School:College of Medical Veterinary and Life Sciences > Institute of Health and Wellbeing > MRC/CSO SPHSU
College of Medical Veterinary and Life Sciences > Institute of Cardiovascular and Medical Sciences
College of Medical Veterinary and Life Sciences > Institute of Health and Wellbeing > Public Health
Journal Name:American Journal of Epidemiology
Publisher:Oxford University Press
ISSN:0002-9262
ISSN (Online):1476-6256
Copyright Holders:Copyright © 2014 The Authors
First Published:First published in American Journal of Epidemiology
Publisher Policy:Reproduced under a Creative Commons License
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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
656601Measuring Health, Variations in Health and Determinants of HealthAlastair LeylandMedical Research Council (MRC)MC_UU_12017/5IHW - MRC/CSO SPHU
656591Evaluating the Health Effects of Social InterventionsMatthew EganMedical Research Council (MRC)MC_UU_12017/4IHW - MRC/CSO SPHU