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. 2021 Sep 2;18(17):9261. doi: 10.3390/ijerph18179261

Table 4.

Indirect effects of physical exercise on psychological distress in adolescents.

Indirect Effect β Bootstrap SE 95% CI Percentage Accounting for Total Effect
Total IEs −0.189 0.013 −0.216 to −0.164 71.6
IE1 −0.059 0.008 −0.077 to −0.044 22.3
IE2 −0.096 0.010 −0.115 to −0.077 36.4
IE3 −0.034 0.004 −0.042 to −0.026 12.9

Note: β = standardized regression coefficient; SE = standard error; CI = confidence interval; IE = indirect effect; IE1 = physical exercise–problematic mobile phone use–psychological distress; IE2 = physical exercise–learning burnout –psychological distress; IE3 = physical exercise–problematic mobile phone use–learning burnout–psychological distress. The IE is statistically significant at the 95% CI when the CI does not include zero.