Table 1.
Baseline demographic and clinical characteristics (N = 309).
| Age categories | ≤ 40 yrs | 194 (62.8) |
| 41–59 yrs | 110 (35.6) | |
| >60 yrs | 4 (1.3) | |
| Missing data | 1 (0.3) | |
| Age, years | 36.9 (18.0 – 66.0) | |
| Sex | Female | 219 (70.9) |
| Body Mass Index | 24.4 (16.7 – 38.7) | |
| Employment | Any/Not employed | 139 (45.0) |
| Office clerk & workman | 86 (27.8) | |
| Other | 66 (21.4) | |
| Student | 18 (5.8) | |
| Healthcare workers | No | 278 (90.0) |
| Yes | 31 (10.0) | |
| Smoking | Never smoked | 206 (66.7) |
| Current smoker | 50 (16.2) | |
| Former smoker | 46 (14.9) | |
| NA | 7 (2.3) | |
| Presence of at least one comorbidity | 36 (11.7) | |
| Comorbidities | Hypertension | 17 (5.5) |
| Major depressive disorder | 8 (2.6) | |
| Hematological disease | 3 (1.0) | |
| Coronary Heart Disease | 3 (1.0) | |
| Diabetes | 3 (1.0) | |
| HBV infection | 2 (0.6) | |
| Cancer | 2 (0.6) | |
Data are reported as mean (range) and n(%)