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Table 4 Direct and indirect associations (via “shift-persist”) between leisure time physical activity and mental health problems

From: The use of coping strategies “shift-persist” mediates associations between physical activity and mental health problems in adolescents: a cross-sectional study

  Path a B (95%CI) Path b B (95%CI) Indirect effect Path ab B (95%CI)a Direct effect Path c’ B (95% CI) Total effect Path c B (95%CI), R2 for total effect model
LPA→Stress 0.0126*** (0.0075, 0.0178) −0.2757*** (− 0.3044, − 0.2469) −0.0035 (− 0.005, − 0.002) −0.0008 (− 0.0038, 0.0023) −0.0043** (− 0.0075, − 0.001), 0.075
VPA→Stress 0.024*** (0.0148, 0.0332) − 0.2741*** (− 0.3029, − 0.2454) −0.0066 (− 0.0092, − 0.004) −0.0034 (− 0.0095, 0.0028) −0.01** (− 0.0162, − 0.0038), 0.078
MVPA→Stress 0.0144*** (0.0085, 0.0203) − 0.2743*** (− 0.303, − 0.2456) −0.0040 (− 0.0056, − 0.0023) −0.0022 (− 0.0061, 0.0016) −0.0062** (− 0.0101, − 0.0022), 0.077
LPA→PSP 0.0125*** (0.0074, 0.0176) − 0.2663*** (− 0.2985, − 0.2341) −0.0033 (− 0.0048, − 0.002) −0.0014 (− 0.0018, 0.0045) −0.002 (− 0.0053, 0.0013), 0.094
VPA→PSP 0.024*** (0.0147, 0.0332) −0.2597*** (− 0.2917, − 0.2276) −0.0062 (− 0.0087, − 0.0037) −0.0061* (− 0.0121, − 0.002) −0.0123*** (− 0.0185, − 0.0062), 0.104
MVPA→PSP 0.0143*** (0.0084, 0.0202) −0.2612*** (− 0.2942, − 0.2301) −0.0038 (− 0.0054, − 0.0022) −0.0021 (− 0.0058, 0.0017) −0.0058** (− 0.0097, − 0.0019), 0.099
  1. Path a represents the association between physical activity and “shift-persist”. Path b represents the association between “shift-persist” and mental health. Path c’ represents direct association between physical activity and mental health. Overview of the mediation analysis is illustrated in Fig. 1.
  2. aNumber of bootstrap samples for percentile bootstrap confidence intervals: 10000. Bold indicates statistically significant indirect effect. B Unstandardized coefficient, CI confidence interval, LPA Light physical activity, VPA Vigorous physical activity, MVPA Moderate-to-vigorous physical activity, PSP Psychosomatic symptoms. Associations are adjusted for sex, family socioeconomic status, migration background and pubertal stage. *p < 0.05, **p < 0.01; ***p < 0.001