Table 3. Comparison of presbyopic and non-presbyopic subjects in terms of age, gender, occupation and educational level.
| Presbyopic (%) | Nonpresbyopic(%) | Total(%) | Chi square(X2) | P value | |
| Age group | 11.366 | 0.023 | |||
| <45 | 30(22.2) | 22(11.0) | 52(15.5) | ||
| 45-54 | 30(22.2) | 70(35.0) | 100(29.9) | ||
| 55-64 | 34(25.2) | 53(26.5) | 87(26.0) | ||
| 65-74 | 29(21.5) | 37(18.5) | 66(19.7) | ||
| >75 | 12(8.9) | 18(9.0) | 30(9.0) | ||
| Gender | 1.663 | ||||
| Male | 35(25.9) | 65(32.5) | 100(29.9) | 0.197 | |
| Female | 100(74.1) | 135(67.5) | 235(70.1) | ||
| Occupation | 8.276 | ||||
| Unemployed | 11(8.1) | 23(11.5) | 34(10.1) | ||
| Housewife | 7(5.2) | 19(9.5) | 26(7.8) | ||
| Manual workers | 76(56.3) | 83(41.5) | 159(47.5) | 0.082 | |
| Skilled workers | 25(18.5) | 51(25.5) | 76(22.7) | ||
| Retirees | 16(11.9) | 24(12.0) | 40(11.9) | ||
| Level of education | 1.203 | 0.752 | |||
| No formal | 44(32.6) | 58(29.0) | 102(30.4) | ||
| Primary | 39(28.9) | 67(33.5) | 106(31.6) | ||
| Secondary | 19(14.1) | 31(15.5) | 50(14.9) | ||
| Post Secondary | 33(24.4) | 44() | 77(23.0) |