Educational differences in the validity of self-reported physical activity

BMC Public Health

Research Article

Joreintje D. Mackenbach¹  Jeroen Lakerveld¹  Johannes Brug¹  Annemarie N. E. Winckers¹  Ilse De Bourdeaudhuij²  Sofie Compernolle²  Mary Nicolaou³  Hidde P. van der Ploeg⁴ 

[1] Department of Epidemiology and Biostatics, EMGO Institute for Health and Care Research, VU University Medical Center Amsterdam, De Boelelaan 1089a, 1081, Amsterdam, HV, The Netherlands;Department of Movement and Sport Sciences, Ghent University, Ghent, Belgium;Department of Public Health, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands;Department of Public and Occupational Health, EMGO Institute for Health and Care Research, VU University Medical Center Amsterdam, Amsterdam, The Netherlands;

关键词: Accelerometer;    Education level;    Questionnaire;    Self-report;    Validity;    Physical activity;   

DOI  :  10.1186/s12889-015-2656-7

 received in 2015-08-04, accepted in 2015-12-19,  发布年份 2015

来源: Springer

【 摘 要 】

BackgroundThe assessment of physical activity for surveillance or population based studies is usually done with self-report questionnaires. However, bias in self-reported physical activity may be greater in lower educated than in higher educated populations. The aim of the present study is to describe educational differences in the validity of self-reported physical activity.MethodsWe included 196 healthy adults (age 57 ± 15.4, of whom 17 % low, 24 % medium and 59 % high educated). Criterion validity of an adapted International Physical Activity Questionnaire was assessed against the ActiGraph GT3X+ accelerometer.ResultsWhile criterion validity of self-reported physical activity was low to moderate in the total sample (Spearman rho ranged from 0.16 to 0.27, depending on the variables used), the validity in lower educated respondents was poor (-0.07 to 0.05).ConclusionsThe results confirm the hypothesis that self-report physical activity questionnaires are less valid in lower educated populations.

【 授权许可】

CC BY   
© Winckers et al. 2015