Age distribution and social characteristics of cases and controls
| Variables . | Cases, n (%) . | Controls, n (%) . | ||
|---|---|---|---|---|
| Age group (y) | ||||
| <45 | 24 (7.3) | 52 (7.8) | ||
| 45-54 | 97 (29.5) | 195 (29.3) | ||
| 55-64 | 118 (35.9) | 238 (35.8) | ||
| 65-74 | 62 (18.8) | 124 (18.6) | ||
| 75≤ | 28 (8.5) | 56 (8.4) | ||
| Mean ± SD | 56.8 ± 8.4 | 57.1 ± 8.9 | ||
| Sex | ||||
| Male | 253 (76.9) | 512 (77.0) | ||
| Female | 76 (23.1) | 153 (23.0) | ||
| Male/Female | 3.3:1 | |||
| Education | ||||
| Illiterate | 165 (50.1) | 195 (29.3) | ||
| Up to class XII | 122 (37.1) | 364 (54.7) | ||
| College level or more | 42 (12.8) | 106 (15.9) | ||
| Income | ||||
| Low | 48 (14.6) | 70 (10.5) | ||
| Middle | 123 (37.4) | 288 (43.3) | ||
| High | 158 (48.0) | 307 (46.2) | ||
| Occupation | ||||
| Office worker | 65 (19.8) | 180 (27.1) | ||
| Skilled worker | 26 (7.9) | 41 (6.2) | ||
| Unskilled worker | 49 (14.9) | 36 (5.4) | ||
| Cultivator | 95 (28.9) | 200 (30.1) | ||
| Others | 94 (28.6) | 208 (31.2) | ||
| Variables . | Cases, n (%) . | Controls, n (%) . | ||
|---|---|---|---|---|
| Age group (y) | ||||
| <45 | 24 (7.3) | 52 (7.8) | ||
| 45-54 | 97 (29.5) | 195 (29.3) | ||
| 55-64 | 118 (35.9) | 238 (35.8) | ||
| 65-74 | 62 (18.8) | 124 (18.6) | ||
| 75≤ | 28 (8.5) | 56 (8.4) | ||
| Mean ± SD | 56.8 ± 8.4 | 57.1 ± 8.9 | ||
| Sex | ||||
| Male | 253 (76.9) | 512 (77.0) | ||
| Female | 76 (23.1) | 153 (23.0) | ||
| Male/Female | 3.3:1 | |||
| Education | ||||
| Illiterate | 165 (50.1) | 195 (29.3) | ||
| Up to class XII | 122 (37.1) | 364 (54.7) | ||
| College level or more | 42 (12.8) | 106 (15.9) | ||
| Income | ||||
| Low | 48 (14.6) | 70 (10.5) | ||
| Middle | 123 (37.4) | 288 (43.3) | ||
| High | 158 (48.0) | 307 (46.2) | ||
| Occupation | ||||
| Office worker | 65 (19.8) | 180 (27.1) | ||
| Skilled worker | 26 (7.9) | 41 (6.2) | ||
| Unskilled worker | 49 (14.9) | 36 (5.4) | ||
| Cultivator | 95 (28.9) | 200 (30.1) | ||
| Others | 94 (28.6) | 208 (31.2) | ||