TABLE 5.
Univariate Analysis for Complications
| Risk Factor | N (%) (n=110) | 5-Year Cumulative Probability of Complication (%) | P * | HR; 95% CI |
|---|---|---|---|---|
| Sex | 0.89 | |||
| Male | 52 (47) | 13 | 0.92; 0.27–3.17 | |
| Female | 58 (53) | 13 | ||
| Age (y) | 0.14 | |||
| 0-5 | 53 (48) | 21 | 0.63; 0.15–2.59† | |
| 6-10 | 25 (23) | 7 | 0.58; 0.06–5.57‡ | |
| 11+ | 32 (29) | 4 | 0.24; 0.06–1.01§ | |
| Ethnicity | 0.25 | |||
| Caucasian | 74 (67) | 11 | 2.04; 0.55–7.64 | |
| Non-Caucasian | 36 (33) | 17 | ||
| Prior glaucoma surgeries | 0.66 | |||
| None | 46 (42) | 11 | 1.33; 0.38–4.61 | |
| 1 or more | 64 (58) | 15 | ||
| Preoperative IOP (mm Hg) | 0.84 | |||
| 0-20 | 29 (26) | 20 | 0.62; 0.15–2.57∥ | |
| 21-30 | 48 (44) | 13 | 0.74; 0.15–3.80¶ | |
| 31+ | 33 (30) | 7 | 0.48; 0.10–2.39# | |
| Preoperative medications | 0.20 | |||
| 0-2 | 31 (28) | 25 | 0.39; 0.10–1.55 | |
| 3+ | 79 (72) | 9 | ||
| Procedure | 0.3 | |||
| Single procedure | 88 (79) | 12 | 1.02; 0.21–4.81 | |
| Staged procedure | 23 (21) | 23 | ||
| Concurrent procedure | 0.04 | |||
| No | 56 (51) | 9 | 3.10; 0.89–10.85 | |
| Yes | 54 (49) | 17 | ||
| Type of glaucoma | 0.19 | |||
| Primary | 34 (31) | 13 | 3.78; 0.97–14.71 | |
| Secondary | 76 (69) | 17 |
*
P-value for Log-rank (Mantel Cox) test for 2 variables or for Log-rank for trend test for 3 variables.
†
Age 0 to 5 versus 6 to 10.
‡
Age 6 to 10 versus 11+.
§
Age 0 to 5 versus 11+.
‖
IOP 0 to 20 versus 21 to 30.
¶
IOP 21 to 30 versus 31+.
#
IOP 0 to 20 versus 31+.
CI indicates confidence interval; HR, hazard ratio; IOP, intraocular pressure.