Comparison 2. VATS versus thoracostomy drainage.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Mortality	7	361	Odds Ratio (M‐H, Random, 95% CI)	0.8 [0.04, 14.89]
1.1 Children	5	271	Odds Ratio (M‐H, Random, 95% CI)	0.0 [0.0, 0.0]
1.2 Adults	2	90	Odds Ratio (M‐H, Random, 95% CI)	0.8 [0.04, 14.89]
2 Length of hospital stay (days)	5	231	Mean Difference (IV, Random, 95% CI)	‐2.52 [‐4.26, ‐0.77]
2.1 Children	4	211	Mean Difference (IV, Random, 95% CI)	‐1.99 [‐4.36, 0.39]
2.2 Adults	1	20	Mean Difference (IV, Random, 95% CI)	‐4.10 [‐4.99, ‐3.21]
3 Procedural complications	5	271	Odds Ratio (M‐H, Random, 95% CI)	0.46 [0.08, 2.75]
3.1 Children	3	181	Odds Ratio (M‐H, Random, 95% CI)	0.94 [0.06, 15.48]
3.2 Adults	2	90	Odds Ratio (M‐H, Random, 95% CI)	0.28 [0.03, 2.88]