Table 2.
Effect of various factors on visual impairment by binary logistic analysis
| Characteristic | Visual impairment (n, %)a
|
Adjusted OR [95% CI] | P-value | |
|---|---|---|---|---|
| Moderate/severe/blind | None/mild | |||
| Sex | ||||
| F | 19 | 31 | 1.00 | |
| M | 33 | 17 | 3.37 [1.09–10.43] | 0.035 |
| Age (years) | ||||
| 0–17 | 4 | 7 | 1.00 | |
| 18–39 | 6 | 16 | 0.64 [0.12–3.39] | 0.595 |
| 40–59 | 22 | 15 | 2.94 [0.64–13.55] | 0.166 |
| ≥60 | 20 | 10 | 5.08 [1.01–25.55] | 0.048 |
| Location | ||||
| Urban | 14 | 29 | 1.00 | |
| Rural | 38 | 19 | 3.11 [1.22–7.89] | 0.017 |
| Occupation | ||||
| Indoor work | 10 | 14 | 1.00 | |
| Nonagricultural work | 10 | 6 | 0.87 [0.16–4.71] | 0.875 |
| Agricultural work | 18 | 10 | 0.49 [0.10–2.44] | 0.384 |
| Children and students | 5 | 10 | 1.17 [0.06–22.53] | 0.916 |
| Without work | 9 | 8 | 1.23 [0.28–5.45] | 0.786 |
| TCM | ||||
| No use | 42 | 44 | 1.00 | |
| Use | 10 | 4 | 2.45 [0.58–10.45] | 0.225 |
| History of ocular trauma | ||||
| No | 37 | 36 | 1.00 | |
| Yes | 15 | 12 | 0.89 [0.27–2.93] | 0.850 |
| Etiologyb | ||||
| Noninfectious | 24 | 31 | 1.00 | |
| Infectious | 23 | 17 | 0.94 [0.33–2.63] | 0.901 |
Notes:
a
Given a total sample size of 100, % equals n. bFive patients were excluded in binary logistic analysis as they had both infectious and noninfectious corneal diseases.
Abbreviations: OR, odds ratio; CI, confidence interval; F, female; M, male; TCM, traditional Chinese medicine.