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Table 3 Summary of unadjusted and adjusted associations between physical activity at age 12–13 years and WEMWBS and SDQ at age 15–16 years

From: The relationship between physical activity, mental wellbeing and symptoms of mental health disorder in adolescents: a cohort study

 n*Physical activity volume (mean cpm) Β*, 95% CI, p-valueMVPA (mean daily minutes) Β*, 95% CI, p-value
 UnadjustedAdjusted**UnadjustedAdjusted**
WEMWBS overall score589−0.06 (− 0.47 to 0.35) t = − 0.27 p = 0.79−0.02 (− 0.44 to 0.40) t = − 0.09 p = 0.93−0.54 (− 2.49 to 1.41) t = − 0.54 p = 0.590.03 (− 1.98 to 2.05) t = 0.03 p = 0.97
SDQ TDS5580.04 (− 0.24 to 0.32) t = 0.29 p = 0.77− 0.16 (− 0.41 to 0.09) t = − 1.29 p = 0.20−0.11 (− 1.42 to 1.21) t = − 0.16 p = 0.87−0.75 (− 1.94 to 0.43) t = − 1.25 p = 0.21
SDQ subscales
 Emotional problems567−0.12 (− 0.24 to − 0.01) t = − 2.09 p = 0.04−0.11 (− 0.23 to − 0.00) t = − 2.05 p = 0.04−0.54 (− 1.08 to − 0.01) t = − 1.94 p = 0.05−0.49 (− 1.02 to 0.04) t = − 1.80 p = 0.07
 Conduct problems5590.06 (− 0.03 to 0.14) t = 1.29 p = 0.20− 0.02 (− 0.10 to 0.60) t = − 0.53 p = 0.600.16 (− 0.25 to 0.58) t = 0.79 p = 0.43− 0.18 (− 0.57 to 0.21) t = − 0.92 p = 0.36
 Hyperactivity5580.13 (0.01 to 0.26) t = 2.18 p = 0.030.02 (− 0.09 to 0.14) t = 0.39 p = 0.690.54 (− 0.03 to 1.11) t = 1.85 p = 0.060.18 (− 0.36 to 0.72) t = 0.65 p = 0.52
 Peer problems567− 0.02 (− 0.09 to 0.06) t = − 0.44 p = 0.66−0.02 (− 0.09 to 0.05) t = − 0.53 p = 0.60−0.15 (− 0.49 to 0.20) t = − 0.84 p = 0.40−0.16 (− 0.51 to 0.19) t = − 0.91 p = 0.36
 Prosocial behaviour5590.01 (− 0.08 to 0.10) t = 0.26 p = 0.800.09 (0.00 to 0.19) t = 2.00 p = 0.050.17 (− 0.27 to 0.61) t = 0.77 p = 0.440.57 (0.13 to 1.02) t = 2.53 p = 0.01
  1. * Unadjusted model is adjusted for gender, age and intervention arm of the AHEAD trial
  2. **Fully adjusted model adjusted for gender, age, intervention arm of the AHEAD trial, ethnic group, SES, study school, daylight minutes, wear time (only when MVPA the exposure), sleep, smoking, friends, belong to teams and clubs, drinking alcohol, symptoms of mental health disorder at baseline
  3. *Coefficients represent the linear relationship between the two variables -change in WEMWBS overall score, SDQ TDS or SDQ subscale score per unit increase in physical activity (an additional 100 mean cpm or an additional 60 min of daily MVPA)