Table 4

 Results of Cox’s regression models for the two success criteria

IOP <19 mm HgIOP <15 mm Hg
Hazard ratio (95% CI)p ValueHazard ratio (95% CI)p Value
Age at surgery (years)1.05 (0.99 to 1.080.061.03 (0.67 to 1.580.17
Sex8.42 (2.18 to 32.47)0.00191.66 (0.70 to 3.93)0.24
Surgery (PT or PDS)1.26 (0.41 to 3.90)0.680.84 (0.34 to 2.64)0.69
IOP <10 at weeks 1–20.60 (0.19 to 1.86)0.360.91 (0.38 to 2.16)0.82
IOP <14 at weeks 3–60.60 (0.01 to 0.24)0.000090.25 (0.10 to 0.62)0.002
Transconjunctival oozing0.21 (0.04 to 1.04)0.0550.18 (0.05 to 0.75)0.02