Comparison 1. Day case versus overnight stay for laparoscopic cholecystectomy.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Serious adverse events	4		Rate Ratio (Fixed, 95% CI)	3.24 [0.74, 14.09]
2 Quality of life	4	333	Std. Mean Difference (IV, Fixed, 95% CI)	‐0.11 [‐0.33, 0.10]
3 Pain (cm visual analogue scale score)	3	175	Mean Difference (IV, Fixed, 95% CI)	0.02 [‐0.69, 0.73]
4 Time to return to activity (days)	2	217	Mean Difference (IV, Fixed, 95% CI)	‐0.55 [‐2.18, 1.08]
5 Time to return to work (days)	1	74	Mean Difference (IV, Fixed, 95% CI)	‐2.0 [‐10.34, 6.34]
6 Number of hospital readmissions	5		Rate Ratio (Fixed, 95% CI)	1.25 [0.43, 3.63]
7 Number of people requiring hospital readmission	3	290	Risk Ratio (IV, Fixed, 95% CI)	1.09 [0.33, 3.60]
8 Failed discharge	5	419	Risk Ratio (IV, Fixed, 95% CI)	0.96 [0.65, 1.41]