Comparison 5. Organisational intervention vs. no intervention (SMD).

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Any stress‐related outcome (follow‐up up to 1 month)	3		Std. Mean Difference (IV, Fixed, 95% CI)	Totals not selected
1.1 Support	1		Std. Mean Difference (IV, Fixed, 95% CI)	0.0 [0.0, 0.0]
1.2 Communication skills	1		Std. Mean Difference (IV, Fixed, 95% CI)	0.0 [0.0, 0.0]
1.3 Special Care RCTs	1		Std. Mean Difference (IV, Fixed, 95% CI)	0.0 [0.0, 0.0]
2 Any stress‐related outcome RCTs (follow‐up 1 ‐ 6 months)	5		Std. Mean Difference (IV, Fixed, 95% CI)	Subtotals only
2.1 Working conditions RCTs	2	525	Std. Mean Difference (IV, Fixed, 95% CI)	‐0.12 [‐0.30, 0.05]
2.2 Special Care RCTs	1	71	Std. Mean Difference (IV, Fixed, 95% CI)	‐0.13 [‐0.60, 0.33]
2.3 Support RCTs	2	952	Std. Mean Difference (IV, Fixed, 95% CI)	0.07 [‐0.09, 0.23]
3 Any stress‐related outcome (follow‐up more than 6 months)	4		Std. Mean Difference (IV, Fixed, 95% CI)	Totals not selected
3.1 Working conditions RCTs	1		Std. Mean Difference (IV, Fixed, 95% CI)	0.0 [0.0, 0.0]
3.2 Working conditions CCTs	1		Std. Mean Difference (IV, Fixed, 95% CI)	0.0 [0.0, 0.0]
3.3 Special Care RCTs	1		Std. Mean Difference (IV, Fixed, 95% CI)	0.0 [0.0, 0.0]
3.4 Support RCTs	1		Std. Mean Difference (IV, Fixed, 95% CI)	0.0 [0.0, 0.0]
4 The Short Form Health Survey (SF‐36) (follow‐up more than 6 months)	1		Mean Difference (IV, Fixed, 95% CI)	Totals not selected