Table 3

Weighted Kappa coefficients for baseline quintiles and follow-up quintiles of physical activity levels. Pooled analysis
MVPA VPA
Boys Girl Boys Girl
Weighted kappa (95% confidence interval)
Weekday/weekend combined 0.28 (0.25, 0.30) 0.25 (0.22, 0.28) 0.27 (0.25, 0.30) 0.23 (0.21, 0.26)
Weekday 0.24 (0.21, 0.27) 0.24 (0.21, 0.26) 0.24 (0.21, 0.27) 0.22 (0.19, 0.24)
Weekend 0.22 (0.19, 0.25) 0.16 (0.13, 0.19) 0.18 (0.15, 0.21) 0.15 (0.12, 0.18)

MVPA, moderate- to vigorous-intensity physical activity; VPA, vigorous-intensity physical activity.

All analyses were weighted based on the sample size of each cohort.

Kwon et al.

Kwon et al. International Journal of Behavioral Nutrition and Physical Activity 2012 9:68   doi:10.1186/1479-5868-9-68

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