Table 7.
Enrollment by Stratum in the Ahmed Baerveldt Comparison Study*
| Overall (n = 276) |
AGV (n = 143 ) |
BGI (n = 133) |
|
|---|---|---|---|
| Primary glaucoma with previous surgery (Stratum 1) |
141 (51%) | 72 (50%) | 69 (52%) |
| Secondary glaucomas (excluding neovascular and uveitic glaucomas) (Stratum 2) |
37 (13%) | 19 (13%) | 18 (14%) |
| Neovascular glaucoma (Stratum 3) |
80 (29%) | 41 (29%) | 39 (29%) |
| Uveitic glaucoma (Stratum 4) |
18 (6.5%) | 11 (8%) | 7 (5%) |
*
No difference in distribution of strata between treatment groups (p=0.88, Chi-Squared)
AGV = Ahmed Glaucoma Valve; BGI = Baerveldt Glaucoma Implant