Table 7. Subgroup analysis evaluating frequency of postoperative complications in study group.

Adverse events		Studies (n)	Crude event rate, n			OR (95%CI)	Heterogeneity			Overall effect
			Glaucoma surgery	Combined cataract/glaucoma surgery			Chi2	P	I2 (%)	Z	P
Deep sclerectomy vs combined deep sclerectomy with phacoemulsification
Shallow/flat anterior chamber		2	1/69	0/50		2.21 (0.09, 55.42)	-	-	-	0.48	0.63
Hyphema		2	5/69	3/50		1.22 (0.28, 5.38)	-	-	-	0.27	0.79
Choroid detachment		2	3/69	1/50		2.23 (0.22, 22.06)	-	-	-	0.68	0.49
Trabeculotomy vs combined trabeculotomy with phacoemulsification
Hyphema		2	25/103	24/120		1.28 (0.68, 2.42)	-	-	-	0.77	0.44
Hypotony		2	43/103	45/120		1.19 (0.70, 2.05)	-	-	-	0.65	0.52
Choroid detachment		2	5/103	5/120		1.17 (0.33, 4.17)	-	-	-	0.25	0.80