Appendix 4. Multivariable analysis of being an atheists and greater recognition of uncertainty Bivariate analysis for atheists Mean ± SD p value Yes (n = 36) 3.7 ± 1.3 0.0076 No (n = 206) 3.1 ± 1.4 Atheist Statistical understanding Atheists 4.7 ± 2.1 Others 3.4 ± 1.9 Multivariable analysis greater uncertainty Regression coefficient (95% confidence interval) < 0.001 Standard error p value Partial R2 0.043 Adjusted R2 Practice type Academic Reference value Multispecialty group -0.81 (-1.3 to -0.31) 0.25 0.002 Large private practice, 10 or more providers -0.47 (-0.99 to 0.044) 0,26 0.073 Small private practice, less than 10 providers -0.56 (-1.3 to 0.19) 0.38 0.14 Hospital-employed practice -0.24 (-0.68 to 0.20) 0.22 0.29 Atheists 0.65 (0.20-1.11) 0.23 0.005 0.035 Trust in the orthopaedic literature -0.15 (-0.25 to -0.036) 0.052 0.30 Confidence bias -0.31 (-0.43 to -0.20) 0.059 0.009 < 0.001 0.19 0.11 Factors with covariance with atheists are omitted from the multivariable analysis for greater uncertainty; only the partial R2 of significant values is displayed; bold indicates statistical significance, p < 0.05.