Table 3.
Logistic regression analysis of preoperative factors predicting failure of trabeculectomy at the 1-year follow-up
| Variables | Univariate analysis | Multivariate analysis | ||||||
|---|---|---|---|---|---|---|---|---|
| OR | 95% LB | 95% UB | P value | OR | 95% LB | 95% UB | P value | |
| Age (years) | 1.07 | 1.01 | 1.15 | 0.04* | 1.07 | 1.00 | 1.17 | 0.08 |
| Gender (male) | 0.46 | 0.12 | 1.73 | 0.24 | ||||
| CDR | 0.97 | 0.93 | 1.03 | 0.30 | 0.94 | 0.87 | 1.00 | 0.06 |
| Previous phacoemulsification | 3.33 | 0.93 | 12.66 | 0.07 | ||||
| Diabetes | 0.22 | 0.01 | 1.38 | 0.17 | 0.16 | 0.01 | 1.61 | 0.18 |
| Systemic hypertension | 0.67 | 0.19 | 2.35 | 0.52 | 0.25 | 0.03 | 1.32 | 0.13 |
| Dyslipidemia | 0.87 | 0.20 | 3.28 | 0.85 | ||||
| Medication exposure | 1.68 | 0.68 | 4.51 | 0.28 | ||||
| Medication requirement | 1.33 | 0.60 | 3.12 | 0.49 | ||||
| Treatment duration (years) | 1.12 | 0.93 | 1.36 | 0.23 | 0.68 | 0.39 | 1.08 | 0.13 |
| IOP (mmHg) | 1.04 | 0.96 | 1.13 | 0.34 | ||||
| GMII | 1.01 | 1.00 | 1.02 | 0.08 | 1.02 | 1.00 | 1.05 | 0.05* |
Multivariate model based on lowest Akaike information criterion (AIC) with backward stepwise selection
LB Lower bound, OR odds ratio, UB upper bound