Comparison of the LASA Physical Activity Questionnaire with a 7-day Diary and Pedometer

Overview

Journal J Clin Epidemiol

Publisher Elsevier

Specialty Public Health

Date 2004 Apr 7

PMID 15066685

Citations 209

Authors

Vianda S Stel

Johannes H Smit

Saskia M F Pluijm

Marjolein Visser

Dorly J H Deeg

Paul Lips

Affiliations

Soon will be listed here.

Abstract

Objective: First, to validate the LASA Physical Activity Questionnaire (LAPAQ) by a 7-day diary and a pedometer in older persons. Second, to assess the repeatability of the LAPAQ. Third, to compare the feasibility of these methods.

Study Design And Setting: The study was performed in a subsample (n=439, aged 69-92 years) of the Longitudinal Aging Study Amsterdam (LASA). The LAPAQ was completed twice (1998/1999, 1999/2000). Respondents completed a 7-day activity diary and wore a pedometer for 7 days (1999/2000).

Results: The LAPAQ was highly correlated with the 7-day diary (r=0.68, P<.001), and moderately with the pedometer (r=0.56, P<.001). The repeatability of the LAPAQ was reasonably good (weighted kappa: 0.65-0.75). The LAPAQ was completed in 5.7+/-2.7 min, and 0.5% of the respondents had missing values.

Conclusion: The LAPAQ appears to be a valid and reliable instrument for classifying physical activity in older people. The LAPAQ was easier to use than the 7-day diary and pedometer.

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