Table 5.
Univariate analysis of the prevalence of infectious corneal diseases
| Characteristic | No. of examined participants |
Corneal disease |
χ
2
|
Infectious keratitis |
χ
2
|
|---|---|---|---|---|---|
| No. (%, 95% CI) | P | No. (%, 95% CI) | P | ||
|
Gender |
|
|
28.794 |
|
2.765 |
| <0.001 |
0.096 |
||||
| Male |
12 942 |
65 (0.50, 0.38-0.62) |
|
14 (0.11, 0.05-0.17) |
|
| Female |
13 363 |
146 (1.09, 0.91-1.27) |
|
25 (0.19, 0.12-0.26) |
|
|
Age (years) |
3 cases missing |
|
281.000 |
|
48.333 |
| <0.001 |
<0.001 |
||||
| ≤14 |
2029 |
1 (0.05, 0.04-0.06) |
|
0 |
|
| 15-59 |
19 196 |
74 (0.39, 0.30-0.48 ) |
|
12 (0.06, 0.03-0.09) |
|
| ≥60 |
5077 |
136 (2.68, 2.24-3.12 ) |
|
27 (0.53, 0.33-0.73) |
|
|
Education |
11 cases missing |
|
235.300 |
|
22.485 |
| <0.001 |
<0.001 |
||||
| None |
2486 |
75 (3.02, 2.35-3.69) |
|
13 (0.52, 0.24-0.80) |
|
| Primary |
6388 |
86 (1.35, 1.21-1.49) |
|
12 (0.19, 0.08-0.30) |
|
| High school |
12 230 |
37 (0.30, 0.20-0.40) |
|
8 (0.07, 0.02-0.12) |
|
| College |
3141 |
9 (0.29, 0.10-0.48) |
|
4 (0.13, 0.01-0.25 ) |
|
| Postgraduate |
2049 |
4 (0.20, 0.01-0.39) |
|
2 (0.10, -0.04-0.24 ) |
|
|
Area |
|
|
62.691 |
|
3.960 |
| <0.001 |
0.047 |
||||
| Urban area |
11 577 |
36 (0.31, 0.21-0.41) |
|
11 (0.10, 0.04-016) |
|
| Rural area | 14 728 | 175 (1.19,1.01-1.37) | 28 (0.19, 0.12-0.26) |
Corneal disease presented in higher prevalence in the female gender, rural areas and those receiving less education, and the prevalence increased with age.