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. 2023 May 12;2023(5):CD002892. doi: 10.1002/14651858.CD002892.pub6

Comparison 4. ‘Combination of interventions’ vs No intervention/wait list/no stress‐reduction intervention (SMD).

Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
4.1 Any symptoms of stress‐related outcome (follow‐up up to 3 months after the end of the intervention) 15 1003 Std. Mean Difference (IV, Random, 95% CI) ‐0.67 [‐0.95, ‐0.39]
4.1.1 No intervention 10 666 Std. Mean Difference (IV, Random, 95% CI) ‐0.71 [‐1.08, ‐0.34]
4.1.2 Wait list 4 270 Std. Mean Difference (IV, Random, 95% CI) ‐0.79 [‐1.21, ‐0.38]
4.1.3 No stress‐reduction intervention 1 67 Std. Mean Difference (IV, Random, 95% CI) 0.13 [‐0.35, 0.61]
4.2 Any symptoms of stress‐related outcome (follow‐up > 3 to 12 months after the end of the intervention) 6 574 Std. Mean Difference (IV, Random, 95% CI) ‐0.48 [‐0.95, ‐0.00]
4.2.1 No intervention 3 330 Std. Mean Difference (IV, Random, 95% CI) ‐0.70 [‐1.52, 0.12]
4.2.2 Wait list 2 177 Std. Mean Difference (IV, Random, 95% CI) ‐0.36 [‐0.65, ‐0.06]
4.2.3 No stress‐reduction intervention 1 67 Std. Mean Difference (IV, Random, 95% CI) 0.00 [‐0.48, 0.48]
4.3 Any symptoms of stress‐related outcome (follow‐up > 12 months) 1   Mean Difference (IV, Random, 95% CI) Totals not selected
4.4 Psychological symptoms: anxiety and depression (follow‐up up to 3 months after the end of the intervention) 4   Std. Mean Difference (IV, Random, 95% CI) Totals not selected
4.4.1 No intervention 3   Std. Mean Difference (IV, Random, 95% CI) Totals not selected
4.4.2 Wait list 1   Std. Mean Difference (IV, Random, 95% CI) Totals not selected
4.5 Psychological symptoms: anxiety and depression (follow‐up > 3 to 12 months after the end of the intervention) 1   Mean Difference (IV, Random, 95% CI) Totals not selected
4.6 Psychological symptoms: anxiety and depression (follow‐up > 12 months after the end of the intervention) 1   Mean Difference (IV, Random, 95% CI) Totals not selected