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Table 3 Comparison of baseline OLS regression with network model for average sedentary time minutes (boys)

From: Associations within school-based same-sex friendship networks of children’s physical activity and sedentary behaviours: a cross-sectional social network analysis

  Change in mean sedentary time (mins) for a one unit increase in covariate
  coefficient 95% CI Direct 95% CIa Indirect
‘Spillover’
95% CIa Total 95% CIa
Baseline OLS regression model (n = 556)
 Constant 20.98 (0.72, 41.23)       
 IMD 0.15 (−0.48, 0.78)       
 BMI z-score 2.02 (−3.32, 7.36)       
 Activity participation score −3.84 (−6.41, −1.27) −3.84 (−6.41, −1.27) 0   −3.84 (−6.41, −1.27)
 AIC = 5609.6
Network model (n = 556)
 Constant 21.15 (2.57, 39.72)       
 IMD 0.16 (−0.40, 0.72)       
 BMI z-score 1.76 (−3.37, 6.89)       
 Activity participation score −3.86 (−6.31, −1.40) −3.88 (−5.14, −2.62) −0.58 (− 0.93, − 0.23) −4.46 (−5.89, − 3.04)
 Network dependence 0.14 (0.07, 0.21)       
 AIC = 5602.2
  1. aImpact CI based on 2.5 and 97.5 percentiles of 200 simulations