Mediation analysis of pooled study specific models’ predictions, product of standardized coefficients, [95% confidence] and (mediation partial R²).

*p < 0.05, bias-corrected bootstrap confidence interval, 5,000 repetitions. Factors included based on statistical significance in multiple regression on pain (t test, p < 0.05). All parameters and statistics estimated while modeling participant fixed effects (not shown). (XLSX)