ArticlePLOS global public health2025
Comparison between self-reported and pedometer-measured physical activity in Vietnamese adolescents: A reliability and agreement study.
Article in PLOS global public health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Artificial intelligence in cataract management: current status and future perspectives.International ophthalmology · 2026Review
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Authors and funding
3 authors.
Funding
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Abstract
To compare the level of physical activity (PA) measured by self-reported questionnaire and pedometer in 12-year-old Vietnamese adolescents. Data was collected from March to May 2023 in two phases among 510 sixth-grade students in Ho Chi Minh City, Vietnam. The first phase involved a pilot study, which recruited 35 students from a randomly selected class to evaluate the Physical Activity Questionnaire for Older Children (PAQ-C) test-retest reliability. PA was measured twice, with seven-day intervals between assessments. The second phase was a cross-sectional study including 475 sixth-grade students to evaluate the agreement between PAQ-C scores and pedometer data. Participants wore a pedometer continuously for seven days and completed the PAQ-C at the end of the monitoring period. Sociodemographic and anthropometric data were collected. The sample of 35 students showed that PAQ-C demonstrated good internal consistency (α = 0.89) and test-retest reliability (ICC = 0.82). After one week, McNemar's test indicated no significant difference in activity levels between the baseline and second assessment. In the sample of 475 students, there was a substantial agreement between PAQ-C and pedometer in classifying physical activity levels (Cohen's κ = 0.688, p < 0.001), with a strong correlation between daily step counts and PAQ-C scores (rs = 0.855, p < 0.001). PAQ-C is a reliable, cost-effective tool for school-based PA monitoring in 12-year-old Vietnamese adolescents, particularly in resource-limited settings.
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Registered trials
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