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Table 6 Longitudinal association of changes in the school environment with changes in activity intensity during the whole school day (multivariable models)

From: School polices, programmes and facilities, and objectively measured sedentary time, LPA and MVPA: associations in secondary school and over the transition from primary to secondary school

Exposure SED change (n = 259) LPA change (n = 269) MVPA change (n = 259)
  β (95 % CI) β (95 % CI) β (95 % CI)
School attitude N/A   −0.47 (−1.37, 0.43) N/A  
School environment N/A   0.07 (−0.04, 0.19) −0.06 (−0.16, 0.04)
Length of break −0.09 (−0.17, 0.00) N/A   0.06 (0.02, 0.10)**
Hours of PE    
   no change (reference)       
   decrease 2.16 (−0.27, 4.60) −1.41 (−2.94, 0.11) −0.83 (−2.03, 0.37)
   increase 0.88 (−1.35, 3.11) −0.56 (−1.81, 0.70) −0.09 (−1.27, 1.08)
Physical activity policy    
   no change (reference) N/A   N/A    
   no/yes      0.12 (−1.19, 1.42)
   yes/no      −0.54 (−1.81, 0.73)
Lunchtime extracurricular physical activity provision    
   no change (reference)    N/A    
   no/yes −2.03 (−3.89, −0.17)*    0.90 (0.03, 1.77)*
   yes/no −1.10 (−4.89, 2.68)    0.07 (−1.88, 2.01)
Break time rules: physically active activities    
   less/less (reference)      N/A  
   less/more 2.16 (−0.84, 5.17) −0.97 (−2.42, 0.47)   
   more/less 0.81 (−2.28, 3.91) −1.54 (−3.19, 0.11)   
   more/more 1.07 (−1.76, 3.91) −1.20 (−2.56, 0.16)   
  1. LPA light physical activity, MVPA moderate to vigorous physical activity, PE physical education, PA physical activity, N/A not analysed in multiple model
  2. * = p < 0.05; ** = p < 0.01