1. Adjusting for selective non-participation with re-contact data in the FINRISK 2012 survey
- Author
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Juho Kopra, Pekka Jousilahti, Juha Karvanen, Hanna Tolonen, Tommi Härkänen, Kari Kuulasmaa, and Jaakko Reinikainen
- Subjects
Male ,FOS: Computer and information sciences ,01 natural sciences ,010104 statistics & probability ,missing data ,0302 clinical medicine ,Epidemiology ,Prevalence ,030212 general & internal medicine ,bias (epidemiology) ,Finland ,media_common ,juomatavat ,General Medicine ,ta3142 ,Middle Aged ,valikoitumisharha ,data ,Female ,alkoholinkäyttö ,Psychology ,Alcohol consumption ,survey-tutkimus ,Adult ,medicine.medical_specialty ,Alcohol Drinking ,media_common.quotation_subject ,alcohol consumption ,Survey result ,Statistics - Applications ,smoking ,03 medical and health sciences ,Non participation ,tupakointi ,Environmental health ,medicine ,Humans ,selection bias ,Applications (stat.AP) ,0101 mathematics ,Aged ,Selection bias ,ta112 ,Public Health, Environmental and Occupational Health ,epidemiologiset harhat ,Missing data ,Health Surveys ,Health indicator ,terveystutkimus ,Patient Participation - Abstract
Aims: A common objective of epidemiological surveys is to provide population-level estimates of health indicators. Survey results tend to be biased under selective non-participation. One approach to bias reduction is to collect information about non-participants by contacting them again and asking them to fill in a questionnaire. This information is called re-contact data, and it allows to adjust the estimates for non-participation. Methods: We analyse data from the FINRISK 2012 survey, where re-contact data were collected. We assume that the respondents of the re-contact survey are similar to the remaining non-participants with respect to the health given their available background information. Validity of this assumption is evaluated based on the hospitalization data obtained through record linkage of survey data to the administrative registers. Using this assumption and multiple imputation, we estimate the prevalences of daily smoking and heavy alcohol consumption and compare them to estimates obtained with a commonly used assumption that the participants represent the entire target group. Results: This approach produces higher prevalence estimates than what is estimated from participants only. Among men, smoking prevalence estimate was 28.5% (23.2% for participants), heavy alcohol consumption prevalence was 9.4% (6.8% for participants). Among women, smoking prevalence was 19.0% (16.5% for participants) and heavy alcohol consumption 4.8% (3.0% for participants). Conclusion: Utilization of re-contact data is a useful method to adjust for non-participation bias on population estimates in epidemiological surveys., Comment: 16 pages, 4 tables, 0 figures
- Published
- 2017
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