Study | N | A path coefficient (SE) | B path coefficient (SE) | Indirect effect 95% CI | C′ path coefficient (SE) |

Study 4 | 602 | 7.85 (2.26) | 0.559 (0.034) | [1.95, 7.00] | −0.793 (1.89) |

Follow-up study 1 | 557 | 4.10 (2.45) | 0.346 (0.036) | [−0.183, 3.28] | −0.582 (2.11) |

Follow-up study 2 | 560 | 9.26 (2.43) | 0.344 (0.037) | [1.56, 5.11] | −1.20 (2.12) |

Follow-up study 3 | 715 | 8.84 (2.09) | 0.526 (0.031) | [2.46, 7.07] | −1.54 (1.75) |

Each mediation model was evaluated separately, with each indirect effect calculated and each SE estimated via bootstrap using the PROCESS macro. The individual indirect effects were weighted by a factor of 1/(SE

^{2}) (i.e., inverse variance weighting) to produce a first-order estimate of the mean indirect effect size: mean effect size = 3.05, SE = 0.510,*Z*= 5.98,*P*< 0.001.