Table 2.

Cox proportional hazards model for surgical failure (POAG and XFG). Reference is pseudophacic lens state at time of surgery. Combined surgery (Trabectome + Cataract) significantly lowers the risk for surgical failure in comparison to pseudophakic patients. There is a trend towards increasing age being beneficial for a successful surgical outcome. HR – Hazard Ratio, CI – Confidence Interval, phakic – phakic at time of Trabectome surgery, combined – Trabectome + phaco, age – age at time of surgery. Statistical significance was assumed for p < 0.05

	HR	CI lower 95	CI upper 95	p
Phakic	1.12	0.54	2.29	0.759
Combined	0.20	0.07	0.62	0.005
Age	0.98	0.96	1.01	0.242