Table 5.
Association of corneal opacity and potential risk factors, eye level analysis (n=596)
| Risk factor | Total no of eyes |
Eyes with corneal opacity |
Percentage of eyes with corneal opacity |
Univariate analysis | Multivariate analysis | |||||||
| Odds Ratio |
95% CI | P value | P value for trend |
Odds Ratio |
95% CI | P value | P value for trend |
|||||
| Sex | Male | 188 | 29 | 15.4 | 1.0 | 1.0 | ||||||
| Female | 408 | 44 | 10.8 | 0.6 | 0.4–1.2 | 0.14 | 0.7 | 0.3–1.4 | 0.314 | |||
| Age | <45 45–64 ≥65 |
197 325 74 |
12 43 18 |
6.1 13.2 24.3 |
1.0 2.8 5.5 |
1.3–6.3 2.2–13.7 |
0.01 <0.01 |
<0.001 | 1.0 3.0 4.9 |
1.3–6.6 1.9–12.7 |
0.008 0.001 |
0.001 |
| Education | Illiterate Non formal or formal education Some formal |
549 47 14 |
71 2 0 |
12.9 4.3 0.0 |
1.0 0.2 |
0.04–1.1 | 0.06 | |||||
|
Time since trichiasis surgery |
0–12 months >12 months |
495 101 |
54 19 |
10.9 18.8 |
1.0 2.4 |
1.2–4.9 | 0.01 | 1.0 2.7 |
1.3–5.5 | 0.007 | ||
|
Epilation prior to surgery |
Yes | 442 | 51 | 11.5 | 1.0 | |||||||
| No | 154 | 22 | 14.3 | 1.2 | 0.7–2.3 | 0.54 | ||||||
| Frequency of epilation | Once a week or more | 223 | 21 | 9.4 | 1.0 | 0.24 | ||||||
| < Once a week | 218 | 30 | 13.8 | 1.6 | 0.8–3.1 | 0.20 | ||||||
| Not at all | 155 | 22 | 14.2 | 1.5 | 0.7–3.1 | 0.26 | ||||||
|
Any surgical complication |
No Yes |
511 85 |
54 19 |
10.6 22.4 |
1.0 2.5 |
1.3–4.7 | 0.01 | 1.0 2.9 |
1.4–5.9 | <0.01 | ||
|
Recurrence of trichiasis |
No Yes |
556 40 |
63 10 |
11.3 25.0 |
1.0 2.7 |
1.1–6.4 | 0.03 | 1.0 2.5 |
1.0–6.3 | 0.042 | ||