Table 8. Results of the Cox Proportional Hazards Model Analysis for Condition B (Qualified Success).

Variable	RR	95% CI	P valuea
Phacoemulsification (time-dependent variable)	1.39	0.43 to 4.48	0.581
The type of uveitis (granulomatous vs. non-granulomatous)	2.54	0.44 to 14.48	0.295
Age (per year)	0.99	0.96 to 1.02	0.429
Male vs. female	1.28	0.54 to 3.05	0.579
Pre-trab IOP (per mm Hg)	1.00	0.95 to 1.05	0.895
Duration of uveitis therapy (within 1 year vs. after 1 year before trab)	0.54	0.21 to 1.36	0.188
Duration of glaucoma therapy (within 1 year vs. after 1 year before trab)	0.94	0.36 to 2.44	0.900

CI, confidence interval; IOP, intraocular pressure; RR, relative risk; trab, trabeculectomy; vs., versus.

^a P values were determined by means of the Wald test in the Cox proportional hazards model.

Significant at P < 0.05.