Table 2 Meta-analysis of salivary cortisol markers in PTSD
From: Salivary cortisol in post-traumatic stress disorder: a systematic review and meta-analysis
|  | Participants with PTSD, n | controls n | SMD (95% CI) | p value | Heterogeneity | Begg’S test Kendall’s tau statistic (p value) | ||
|---|---|---|---|---|---|---|---|---|
Q statistic (DF; p value) | Ï„2 | I2 | ||||||
all | 1064 | 2322 | −0.28 (−0.53; −0.04) | 0.022 | 236.00(33 < 0.0001) | 0.427 | 86.00% | −0.1907, p = 0.117 |
am | 628 | 1316 | −0.39 (− 0.70; − 0.09) | 0.012 | 132.68(20 < 0.0001) | 0.412 | 84.90% | −0.2000, p = 0.219 |
pm | 436 | 1006 | −0.11 (− 0.52; 0.30) | 0.598 | 96.40(12 < 0.0001) | 0.476 | 87.60% | −0.1795, p = 0.435 |
<2007 | 659 | 734 | −0.13 (− 0.50; 0.23) | 0.479 | 163.59(18 < 0.0001) | 0.568 | 89.00% | −0.2281, p = 0.186 |
≥2007 | 405 | 1588 | −0.48 (− 0.75; − 0.20) | 0.001 | 52.71(14 < 0.0001) | 0.199 | 73.40% | −0.2952, p = 0.140 |