4.6 Article

Reliability and relative validity of three physical activity questionnaires in Taizhou population of China: the Taizhou Longitudinal Study

Journal

PUBLIC HEALTH
Volume 129, Issue 9, Pages 1211-1217

Publisher

W B SAUNDERS CO LTD
DOI: 10.1016/j.puhe.2015.03.024

Keywords

Reliability; Relative validity; PAQ; PA-log; The Taizhou Longitudinal Study

Funding

  1. National Natural Science Foundation [30625016, 30890034]
  2. National Science and Technology Supporting Program [2011BAI09B00, 2011BAI09B02]
  3. Commonwealth of the Ministry of Health [201002007]

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Objective: To examine the test-retest reliabilities and relative validities of the Chinese version of short International Physical Activity Questionnaire (IPAQ-S-C), the Global Physical Activity Questionnaire (GPAQ-C), and the Total Energy Expenditure Questionnaire (TEEQ-C) in a population-based prospective study, the Taizhou Longitudinal Study (TZLS). Study design: A longitudinal comparative study. Methods: A total of 205 participants (male: 38.54%) aged 30-70 years completed three questionnaires twice (day one and day nine) and physical activity log (PA-log) over seven consecutive days. The test-retest reliabilities were evaluated using intra-class correlation coefficients (ICCs) and the relative validities were estimated by comparing the data from physical activity questionnaires (PAQs) and PA-log. Results: Good reliabilities were observed between the repeated PAQs. The ICCs ranged from 0.51 to 0.80 for IPAQ-C, 0.67 to 0.85 for GPAQ-C, and 0.74 to 0.94 for TEEQ-C, respectively. Energy expenditure of most PA domains estimated by the three PAQs correlated moderately with the results recorded by PA-log except the walking domain of IPAQ-S-C. The partial correlation coefficients between the PAQs and PA-log ranged from 0.44 to 0.58 for IPAQ-S-C, 0.26 to 0.52 for GPAQ-C, and 0.41 to 0.72 for TEEQ-C, respectively. Bland-Altman plots showed acceptable agreement between the three PAQs and PA-log. Conclusion: The three PAQs, especially TEEQ-C, were relatively reliable and valid for assessment of physical activity and could be used in TZLS. (C) 2015 The Royal Society for Public Health. Published by Elsevier Ltd. All rights reserved.

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