Table 2 Prevalence rates of VI, correctable VI and noncorrectable VI for two criteria by age, sex, insurance, occupation and education*
From: Visual impairment and spectacle coverage rate in Baoshan district, China: population-based study
Characteristic | Presenting visual acuity for a 6/18 cutoff | Presenting visual acuity for a 6/12 cutoff | ||||
|---|---|---|---|---|---|---|
| Â | VI n(%;95%CI) | Correctable VI n(%;95%CI) | Noncorrectable VI n(%;95%CI) | VI n(%;95%CI) | Correctable VI n(%;95%CI) | Noncorrectable VI n(%;95%CI) |
Age,y | Â | Â | Â | Â | Â | Â |
60-69 | 159(5.47;4.64-6.30) | 124(4.27;3.53-5.00) | 35(1.20;0.81-1.60) | 370(12.73;11.52-13.94) | 274(9.43;8.36-10.49) | 96(3.30;2.65-3.95) |
70-79 | 118(10.70;8.87-12.52) | 82(7.43;5.89-8.98) | 36(3.26;2.22-4.31) | 319(28.92;26.25-31.60) | 196(17.77;15.51-20.03) | 123(11.15;9.29-13.01) |
80~ | 124(23.18;19.60-26.75) | 58(10.84;8.21-13.48) | 66(12.34;9.55-15.12) | 284(53.08;48.86-57.31) | 129(24.11;20.49-27.74) | 155(28.97;25.13-32.82) |
total | 401(8.82;8.00-9.65) | 264(5.81;5.13-6.49) | 137(3.01;2.52-3.51) | 973(21.41;20.22-22.60) | 599(13.18;12.20-14.16) | 374(8.23;7.43-9.03) |
Age adjusted†| 9.53(8.18-10.39) | 6.22(5.52-6.93) | 3.31(2.79-3.83) | 23.55(22.32-24.79) | 14.26(13.25-15.28) | 9.30(8.45-10.14) |
Gender | Â | Â | Â | Â | Â | Â |
Male | 134(7.02;5.87-8.16) | 89(4.66;3.71-5.60) | 45(2.36;1.68-3.04) | 319(16.70;15.03-18.37) | 207(10.84;9.44-12.23) | 112(5.86;4.81-6.92) |
Female | 267(10.13;8.98-11.29) | 175(6.64;5.69-7.59) | 92(3.49;2.79-4.19) | 654(24.82;23.17-26.50) | 392(14.88;13.52-16.24) | 262(9.94;8.80-11.09) |
Type of insurance | Â | Â | Â | Â | Â | Â |
No insurance | 2(10.00;1.00-32.00) | 2(10.00;1.00-32.00) | 0(0;0–17.00) | 4(20.00;6.00-44.00) | 3(15.00;3.00-38.00) | 1(5.00;0–25.00) |
Urban insurance | 219(9.64;8.43-10.86) | 149(6.56;5.54-7.58) | 70(3.08;2.37-3.79) | 503(22.15;20.44-23.86) | 306(13.47;12.07-14.88) | 197(8.67;7.52-9.83) |
Others | 180(7.99;6.87-9.10) | 113(5.01;4.11-5.91) | 67(2.97;2.27-3.67) | 466(20.67;19.00-22.35) | 290(12.87;11.48-14.25) | 176(7.81;6.70-8.92) |
Occupation | Â | Â | Â | Â | Â | Â |
Peasant | 89(7.22;5.78-8.67) | 59(4.79;3.60-5.98) | 30(2.44;1.57-3.30) | 245(19.89;17.66-22.12) | 156(12.66;10.81-14.52) | 89(7.22;5.78-8.67) |
Non-peasant | 312(9.42;8.42-10.41) | 205(6.19;5.37-7.01) | 107(3.23;2.63-3.83) | 728(21.97;20.56-23.38) | 443(13.37;12.21-14.53) | 285(8.60;7.65-9.56) |
Level of Education | Â | Â | Â | Â | Â | Â |
Illiteracy | 104(15.20;12.51-17.90) | 55(8.04;6.00-10.08) | 49(7.16;5.23-9.10) | 253(36.99;33.37-40.61) | 128(18.71;15.79-21.64) | 125(18.27;15.38-21.17) |
Primary school | 200(8.62;7.48-9.77) | 137(5.91;4.95-6.87) | 63(2.72;2.06-3.38) | 480(20.70;19.05-22.35) | 304(13.11;11.74-14.48) | 176(7.59;6.51-8.67) |
Secondary school or higher | 97(6.29;5.08-7.50) | 72(4.67;3.62-5.72) | 25(1.62;0.99-2.25) | 240(15.56;13.75-17.37) | 167(10.83;9.28-12.38) | 73(4.73;3.67-5.79) |