Table 1 Results of multivariable logistic regression analyses evaluating factors predicting success of nasolacrimal probing
From: Success rates of probing for congenital nasolacrimal duct obstruction at various ages
Variable | Eyes (n = 3009) | Successful probing n (%) | OR (95%CI) | P value |
|---|---|---|---|---|
Age (months) | ||||
≤ 2 | 141 | 124 (87.94) | 0.69 (0.40–1.78) | 0.1717 |
3–6 | 1430 | 1307 (91.4) | 1 | |
7–9 | 634 | 568 (89.59) | 0.81 (0.59–1.11) | 0.1894 |
10–12 | 335 | 288 (85.97) | 0.58 (0.40–0.83) | 0.0027 |
13–15 | 169 | 129 (76.33) | 0.30 (0.20–0.45) | < 0.0001 |
16–18 | 101 | 72 (71.29) | 0.23 (0.15–0.37) | < 0.0001 |
19–21 | 64 | 45 (70.31) | 0.22 (0.13–0.39) | < 0.0001 |
22–24 | 57 | 40 (70.18) | 0.22 (0.12–0.40) | < 0.0001 |
> 24 | 78 | 51 (65.38) | 0.17 (0.11–0.29) | < 0.0001 |
Type of obstruction | ||||
Unilateral | 1859 | 1668 (89.73) | 1 | |
Bilateral | 1150 | 956 (83.13) | 0.56 (0.45–0.69) | < 0.0001 |
Gender | ||||
Girls | 1410 | 1239 (87.87) | 1 | |
Boys | 1599 | 1385 (86.62) | 0.89 (0.72–1.11) | 0.3036 |