Table 2.

MIGS procedures – Reoperation at time intervals

	ECP		XEN		Goniotomy + Canaloplasty
Year	Stand-alone (n=2,223)	phacoemulsification (n=36,861)	Stand-alone (n=4,680)	phacoemulsification (n=1,933)	Stand-alone (n=8,215)	phacoemulsification (n=25,451)
Failure (% (95% CI)) by reoperation failure criteria
0.25	3.1 (2.5 – 3.9)	0.4 (0.3 – 0.5)	3.6 (3.1 – 4.2)	2.1 (1.5 – 2.8)	4.0 (3.6 – 4.5)	0.6 (0.5 – 0.7)
0.5	6.1 (5.2 – 7.2)	0.8 (0.7 – 0.9)	8.3 (7.5 – 9.2)	5.4 (4.4 – 6.6)	9.2 (8.6 – 9.9)	1.4 (1.2 – 1.5)
1	10.5 (9.2 – 11.9)	1.4 (1.3 – 1.6)	15.7 (14.5 – 17.0)	10.8 (9.2 – 12.6)	15.9 (15.0 – 16.8)	2.7 (2.5 – 3.0)
2	14.6 (13.0 – 16.3)	2.5 (2.4 – 2.7)	24.3 (22.2 – 26.4)	18.9 (15.8 – 22.4)	24.0 (22.9 – 25.2)	5.8 (5.3 – 6.3)
3	16.2 (14.5 – 18.1)	3.3 (3.1 – 3.5)	27.5 (24.1 – 31.3)	-	28.7 (27.4 – 30.1)	8.1 (7.4 – 8.9)
p-value a	P<0.001		P<0.001		P<0.001

Abbreviation: ECP, Endocyclophotocoagulation.

Keynote:

^{(a) =}pairwise comparison (each MIGS procedures alone vs MIGS procedures concurrent with phacoemulsification)