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. 2022 Mar 2;2022(3):CD002795. doi: 10.1002/14651858.CD002795.pub3

Comparison 3. Antipsychotics versus placebo.

Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
3.1 Clinical Global Impressions Scale Improvement Item (CGI‐I) 2   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
3.1.1 No. of responders 2 43 Risk Ratio (M‐H, Random, 95% CI) 0.51 [0.16, 1.67]
3.2 Drop‐out rate due to treatment emergent adverse effects 5   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
3.2.1 Dropout rate 5 174 Risk Ratio (M‐H, Random, 95% CI) 0.94 [0.85, 1.03]
3.3 Clinically Administered PTSD Scale (CAPS): reduction of PTSD symptoms 3   Mean Difference (IV, Random, 95% CI) Subtotals only
3.3.1 CAPS: Total score 3 129 Mean Difference (IV, Random, 95% CI) ‐14.10 [‐22.57, ‐5.62]
3.3.2 CAPS subscale: Re‐experiencing/intrusion 3 129 Mean Difference (IV, Random, 95% CI) ‐4.73 [‐7.55, ‐1.90]
3.3.3 CAPS subscale: Avoidance/numbing 3 129 Mean Difference (IV, Random, 95% CI) ‐6.01 [‐13.72, 1.70]
3.3.4 CAPS subscale: Hyperarousal 3 129 Mean Difference (IV, Random, 95% CI) ‐5.14 [‐8.16, ‐2.11]
3.4 Symptom severity: Other measures 2   Std. Mean Difference (IV, Random, 95% CI) Subtotals only
3.4.1 Reduction of PTSD symptoms 2 108 Std. Mean Difference (IV, Random, 95% CI) ‐0.55 [‐0.94, ‐0.17]
3.5 Self‐rated scales 3   Std. Mean Difference (IV, Random, 95% CI) Subtotals only
3.5.1 Total score 3 119 Std. Mean Difference (IV, Random, 95% CI) ‐0.47 [‐1.06, 0.11]
3.5.2 Self‐rated subscale: Re‐experiencing/Intrusion 1 15 Std. Mean Difference (IV, Random, 95% CI) 0.51 [‐0.58, 1.61]
3.5.3 Self‐rated subscale: Avoidance/numbing 1 15 Std. Mean Difference (IV, Random, 95% CI) ‐0.30 [‐1.38, 0.78]
3.5.4 Self‐rated subscale: Hyperarousal 1 15 Std. Mean Difference (IV, Random, 95% CI) ‐0.06 [‐1.13, 1.01]
3.6 Depression Scale (typically Hamilton Depression) 2   Std. Mean Difference (IV, Random, 95% CI) Subtotals only
3.6.1 Reduction of depression symptoms 2 108 Std. Mean Difference (IV, Random, 95% CI) ‐0.62 [‐1.01, ‐0.23]
3.7 Anxiety ‐ Hamilton Anxiety Scale 1   Mean Difference (IV, Random, 95% CI) Subtotals only
3.7.1 Reduction of anxiety symptoms 1 80 Mean Difference (IV, Random, 95% CI) ‐3.03 [‐6.21, 0.15]
3.8 Sheehan Disability Scale 2   Mean Difference (IV, Random, 95% CI) Subtotals only
3.8.1 Reduction of functional disability 2 43 Mean Difference (IV, Random, 95% CI) ‐6.57 [‐14.74, 1.61]
3.9 Drop‐out rate due to any cause 4   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
3.9.1 Dropout rate 4 133 Risk Ratio (M‐H, Random, 95% CI) 0.79 [0.54, 1.14]