Table 2. Demographics and general health characteristics of normal and OAG with the normal IOP population by gender.
| Parameter | Men (n = 2,573) | Women (n = 2,625) | ||||
|---|---|---|---|---|---|---|
| Normal (n = 2,440) | OAG with normal IOP (n = 133) | P† | Normal (n = 2,549)(n = 2,549) | OAG with normal IOP (n = 76) | P† | |
| Demographics | ||||||
| Age groups | 0.016* | <0.001* | ||||
| 19–29 | 10.7 (0.6) | 3.8 (2.1)* | 9.3 (0.5) | 1.7 (1.0) | ||
| 30–39 | 11.5 (0.6) | 7.6 (2.6) | 10.5 (0.5) | 12.5 (4.5) | ||
| 40–49 | 35.0 (0.9) | 32.9 (5.3) | 32.3 (0.9) | 12.4 (4.2) | ||
| 50–59 | 24.8 (0.8) | 30.6 (4.6) | 25.2 (0.8) | 20.7 (5.9) | ||
| 60–69 | 11.4 (0.6) | 14.3 (3.0) | 11.8 (0.6) | 16.3 (4.3) | ||
| ≥70 | 6.6 (0.8) | 10.9 (3.8) | 11.0 (1.2) | 36.3 (9.3) | ||
| Area of residence, % | 0.110 | 0.472 | ||||
| Urban region | 67.4 (1.2) | 75.9 (4.7) | 68.4 (1.2) | 62.9 (7.9) | ||
| Rural region | 32.6 (1.2) | 24.1 (4.7) | 31.6 (1.2) | 37.1 (7.9) | ||
| Occupation, % | 0.991 | 0.001* | ||||
| White collar | 39.9 (1.2) | 39.3 (5.1) | 31.7 (1.1) | 15.9 (5.4) | ||
| Blue collar | 40.5 (1.3) | 41.2 (5.4) | 21.4 (1.2) | 12.3 (4.2) | ||
| Inoccupation | 19.6 (1.0) | 19.5 (4.5) | 46.9 (1.3) | 71.8 (6.8) | ||
| Education, % | 0.791 | <0.001* | ||||
| ≤Elementary school | 14.2 (0.9) | 11.7 (3.4) | 29.5 (1.2) | 60.3 (7.7)* | ||
| Middle school graduate | 12.5 (0.8) | 15.6 (4.1) | 13.6 (0.8) | 11.6 (4.1) | ||
| High school graduate | 41.5 (1.2) | 41.5 (5.2) | 36.6 (1.2) | 12.0 (3.9) | ||
| ≥College graduate | 31.8 (1.2) | 31.2 (4.3) | 20.3 (0.9) | 16.0 (5.3) | ||
| Smoking status, % | 0.473 | 0.667 | ||||
| Ever | 82.5 (0.9) | 85.6 (3.9) | 9.7 (0.8) | 7.8 (4.0) | ||
| Never | 17.5 (0.8) | 14.4 (3.9) | 90.3 (0.8) | 92.2 (4.0) | ||
| Medical comorbidities, % | ||||||
| Hypertension | 17.4 (0.9) | 33.4 (4.9)* | <0.001 | 19.7 (1.1) | 36.2 (8.4)* | 0.022* |
| Family history of glaucoma | 1.9 (0.3) | 1.4 (1.3) | 0.763 | 1.65 (0.3) | 2.84 (2.1) | 0.475 |
| IOP, mmHg | 14.1 (0.1) | 14.7 (0.4) | 0.132 | 13.7 (0.07) | 14.4 (0.6) | 0.282 |
All data are expressed as weighted means or weighted frequency with SE.
OAG, open-angle glaucoma; IOP, intraocular pressure.
*P < 0.05 versus the normal control group.
†Rao-Scott χ2 (for categorical variables) or ANOVA (for continuous variables) tests were used.