Table 2.
Baseline characteristics across cases (n = 864) and controls (n = 750).
| Characteristics | Cases n (%) | Controls n (%) | Total |
|---|---|---|---|
| Age (years): median (IQR) | 50 (40–60) | 45 (30–59) | 47.5 (35–60) |
| Age (years): mean ± SD | 50.0 ± 14.1 | 45.2 ± 17.0 | 47.8 ± 15.7 |
| Age group (in years) (n = 1,614) | |||
| 18–29 | 52 (6.0) | 174 (23.2) | 226 (14.0) |
| 30–44 | 254 (29.4) | 198 (26.4) | 452 (28.0) |
| 45–59 | 331 (38.3) | 192 (25.6) | 523 (32.4) |
| 60 and above | 227 (26.3) | 186 (24.8) | 413 (25.6) |
| Gender (n = 1,614) | |||
| Male | 629 (72.8) | 511 (68.1) | 1,140 (70.6) |
| Female | 235 (27.2) | 239 (31.9) | 474 (29.4) |
| Area of residence (n = 1,614) | |||
| Rural | 541 (62.6) | 426 (56.8) | 967 (59.9) |
| Urban | 323 (37.4) | 324 (43.2) | 647 (40.1) |
| Caste (n = 1,614) | |||
| General | 471 (54.5) | 409 (54.5) | 880 (54.5) |
| OBC | 252 (29.2) | 260 (34.7) | 512 (31.5) |
| SC | 74 (8.6) | 22 (3.0) | 96 (6.2) |
| ST | 67 (7.7) | 59 (7.8) | 126 (7.8) |
| Education (n = 1,614) | |||
| Years of schooling | 11.4 ± 3.7 | 11.7 ± 3.7 | 11.5 ± 3.7 |
| Occupation (n = 1,614) | |||
| Health care workers | 23 (2.6) | 26 (3.5) | 49 (3.1) |
| Front line workers | 28 (3.3) | 31 (4.1) | 59 (3.6) |
| Others | 813 (94.1) | 693 (92.4) | 1,506 (93.3) |
| Number of comorbidities (n = 1,614) | |||
| 0 | 320 (37.0) | 580 (77.3) | 900 (55.7) |
| 1 | 379 (43.9) | 103 (13.7) | 482 (29.9) |
| 2 | 132 (15.3) | 49 (6.6) | 181 (11.2) |
| 3 or more | 33 (3.8) | 18 (2.4) | 51 (3.2) |