Comparison 3. Patient satisfaction: PCA versus control.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
3.1 Satisfaction on a continuous scale	7	427	Std. Mean Difference (IV, Random, 95% CI)	0.55 [0.13, 0.97]
3.2 Number of participants in arm satisfied with therapy	11	547	Risk Difference (M‐H, Random, 95% CI)	0.20 [0.07, 0.32]