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Table 3 Mean and comparative annual change in MVPA, LPA and ST at weekdays and weekends

From: Longitudinal changes in objectively measured physical activity differ for weekdays and weekends among Chinese children in Hong Kong

  Weekdaya Weekenda Difference in annual changeb (reference: weekend)
Boys
 MVPA (mind−1) −5.5 (−7.3, −3.6) −8.5 (−10.6, −6.3) 3.0 (0.3, 5.7)
 LPA (mind−1) −5.8 (−9.4, −2.2) −4.2 (−8.6, −0.1) −1.5 (−7.0, 3.9)
 ST (mind−1) 11.2 (6.8, 15.5) 12.7 (7.4, 18.0) −1.5 (−8.1, 5.1)
 % MVPA −0.7 (−0.9, −0.1) −1.2 (−1.5, −0.9) 0.5 (0.1, 0.9)
 % LPA −0.7 (−1.1, −0.2) −0.6 (−1.2, −0.0) −0.0 (−0.8, 0.7)
 % ST 1.3 (0.7, 1.9) 1.8 (1.1, 2.5) −0.5 (−1.3, 0.4)
Girls
 MVPA (mind−1) −6.5 (−8.1, −4.9) −10.0 (−11.9, −8.1) 3.5 (1.1, 5.8)
 LPA (mind−1) −12.8 (−16.6, −8.9) −9.3 (−13.9, −4.8) −3.5 (−9.2, 2.3)
 ST (mind−1) 19.3 (14.8, 23.8) 19.3 (14.0, 24.6) −0.0 (−6.6, 6.7)
 % MVPA −0.8 (−1.0, −0.6) −1.4 (−1.6, −1.1) 0.6 (0.2, 0.9)
 % LPA −1.6 (−2.1, −1.1) −1.2 (−1.8, −0.6) −0.4 (−1.1, 0.4)
 % ST 2.4 (1.9, 3.3) 2.6 (1.9, 3.3) −0.2 (−1.0, 0.7)
  1. Data are presented in β coefficients and 95 % confidence intervals
  2. MVPA moderate-to-vigorous physical activity; LPA light-intensity physical activity; ST sedentary time
  3. aResults from linear mixed models for children with valid data for at least 3 days including 1 weekend day ≥2 time points (n = 412); β coefficients for weekdays and weekends indicate mean annual change
  4. bComparative annual change between weekday and weekend determined by linear mixed models. β coefficients represent the difference in change between weekday and weekend for every 1-year increase in age. The significant results are in bold. Models were adjusted for time-varying BMI, parental education, marital status, number of siblings, and wearing time (for absolute minutes)