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Table 1 Comparison of baseline OLS regression with network model for average MVPA 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 MVPA (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 −14.57 (−23.10, −6.04)       
 IMD −0.04 (−0.30, 0.23)       
 BMI z-score −2.51 (−4.79, −0.24) − 2.51 (− 4.79, − 0.24) 0   −2.51 (− 4.79, − 0.24)
 Activity participation score 2.55 (1.62, 3.48) 2.55 (1.62, 3.48) 0   2.55 (1.62, 3.48)
 AIC = 4657.6
Network model (n = 556)
 Constant −14.76 (−22.56, −6.96)       
 IMD −0.004 (−0.24, 0.24)       
 BMI z-score −2.64 (−4.77, −0.50) − 2.68 (− 4.84, − 0.51) −0.63 (−1.21, − 0.06) −3.31 (−6.01, − 0.61)
 Activity participation score 2.45 (1.57, 3.33) 2.48 (1.59, 3.37) 0.59 (0.29, 0.89) 3.07 (1.94, 4.21)
 Network dependence 0.21 (0.15, 0.26)       
 AIC = 4637.0
  1. aImpact CI based on 2.5 and 97.5 percentiles of 200 simulations