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. 2007 Aug 28;7:12. doi: 10.1186/1471-2415-7-12

Table 2.

Distribution of predicted proportions of vision status by age group and sex in persons with trichiasis (n = 319)

Age group (years) Vision status* (%)

Males Females Total



Normal vision Low vision Blindness Normal vision Low vision Blindness Normal vision Low vision Blindness
0–4** 100.0 0 0 100 0 0 100 0 0
5–9 94.6 5.0 0.4 96.3 3.3 0.3 96.0 3.7 0.4
10–14 90.1 9.2 0.7 93.1 6.2 0.7 92.4 6.9 0.7
15–19 83.9 14.8 1.3 88.4 10.4 1.2 87.4 11.4 1.2
20–24 76.1 21.8 2.1 82.2 15.8 2.0 80.9 17.2 2.0
25–29 67.2 29.7 3.2 74.7 22.3 3.0 72.9 24.0 3.1
30–34 57.6 37.7 4.7 66.0 29.4 4.5 64.1 31.4 4.5
35–39 48.2 45.1 6.7 56.9 36.6 6.5 54.8 38.6 6.5
40–44 39.4 51.3 9.3 47.9 43.0 9.1 45.8 45.0 9.1
45–49 31.7 55.7 12.6 39.4 48.2 12.4 37.6 50.1 12.4
50–54 25.2 58.2 16.5 32.0 51.6 16.4 30.3 53.3 16.4
55–59 19.9 58.9 21.2 25.6 53.3 21.1 24.2 54.8 21.1
60–64 15.6 57.9 26.5 20.3 53.1 26.6 19.1 54.4 26.4
65–69 12.2 55.4 32.4 16.0 51.4 32.5 15.1 52.5 32.4
70–74 9.6 51.8 38.6 12.6 48.4 38.9 11.9 49.4 38.7
75+ 7.5 47.4 45.0 10.0 44.6 45.5 9.3 45.5 45.2

Total 55.0 35.0 10.0 55.3 33.8 10.9 53.9 35.3 10.9
95% CI 49.6–60.3 31.4–38.7 8.1–11.9 52.4–58.3 31.8–35.7 9.7–12.1 50.9–56.9 33.3–37.2 9.7–12.0

*Vision status: Normal vision = presenting visual acuity of ≥ 6/18 in the better eye; Low vision = presenting visual acuity of < 6/18 to ≤ 3/60 in the better eye; Blindness = presenting visual acuity of < 3/60 in the better eye.

**Children aged 0–4 years assumed to have normal vision.