Table 2. Cox proportional hazards model for covariate analysis.

Covariate	Hazard ratio	95% CI	Multivariate P-value	Univariate P-value log-rank test
Increasing age	0.96	0.93–0.99	0.02
Male sex	1.25	0.8448–1.84	0.26	0.14
No spacer device	1.67	1.07–2.58	0.02	0.15
Laser goniopuncture	0.28	0.17–0.45	<0.0001	0.048
Intraoperative perforation	0.54	0.27–1.04	0.07	0.15
Intraoperative MMC	0.79	0.53–1.19	0.26	0.74
Needle revision	1.16	0.74–1.88	0.51	0.006