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Table 3 Separate univariate meta-regression model of salivary cortisol in PTSD, PTSD = post-traumatic stress disorder

From: Salivary cortisol in post-traumatic stress disorder: a systematic review and meta-analysis

  Estimate se zval pval ci.lb ci.ub
Collection time − 0.306 0.362 − 0.844 0.399 −1.015 0.404
Country −0.085 0.362 −0.236 0.814 −0.795 0.624
Publication year −0.352 0.351 −1.002 0.316 −1.041 0.337
PTSD assessment −0.812 0.371 −2.187 0.029 −1.540 −0.084
Assayed methods −0.344 0.384 −0.896 0.370 −1.097 0.409
Inter-assay variation −0.090 0.391 −0.229 0.819 −0.857 0.677
Frozen 0.686 0.390 1.762 0.078 −0.077 1.450