Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1083373 | Journal of Clinical Epidemiology | 2008 | 7 Pages |
Abstract
Questionnaire surveys and health check-ups were broadly representative of the target population. Associations between other study variables and participation did not differ by health status. This suggests that even when the data are not fully representative associations between the study variables need not to be biased.
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Authors
Mikko Laaksonen, Akseli Aittomäki, Tea Lallukka, Ossi Rahkonen, Peppiina Saastamoinen, Karri Silventoinen, Eero Lahelma,