Skip to main content

Table 3 Cross-sectional associations between sedentary behaviour, physical activity and bone stiffness index percentiles at baseline

From: Cross-sectional and longitudinal associations between physical activity, sedentary behaviour and bone stiffness index across weight status in European children and adolescents

  Whole group Thin/normal weight group Overweight/obese group
β (99%CI) p-value β (99%CI) p-value β (99%CI) p-value
Main sample (self-reported data, N = 2008)
 Watching TV/video/DVD (hours/week) − 0.23(− 0.53,0.06) 0.044 − 0.35(− 0.69,-0.01) 0.008 0.03(− 0.60,0.66) 0.906
 Playing computer/games (hours/week) − 0.004(− 0.49,0.48) 0.984 0.03(− 0.52,0.58) 0.883 0.03(− 0.96,1.01) 0.943
 Sports clubs (hours/week) 1.00(− 0.40,2.39) 0.066 0.50(− 1.03,2.04) 0.398 2.68(− 0.58,5.95) 0.034
 Weight bearing sports
 Moderate or high mechanical loads vs. No or low mechanical loads (reference) − 1.80(−6.37,2.77) 0.310 − 0.13(−5.16,4.91) 0.948 −8.05(− 18.68,2.59) 0.051
Subsample (accelerometer data, N = 1037)
 Sedentary time (hours/day) − 0.11(− 2.11,1.90) 0.891 1.01(− 1.29,3.31) 0.256 −3.85(−7.82,0.13) 0.013
 Light physical activity (hours/day) −0.94(− 3.06,1.19) 0.255 −1.46(− 3.90,0.99) 0.124 − 0.22(− 4.50,4.05) 0.893
 Moderate-to-vigorous physical activity (10 min/day) 0.70(− 0.32,1.73) 0.077 1.18 (0.03,2.33) 0.008 − 0.23(− 2.62,2.17) 0.807
  1. Adjusted for baseline age, sex, socio-economic status, daylight, height and weight z-score, country as a random effect