Table 1.
Characteristics of the study group by stage of the study.
| Variable | Stage 1 (n = 1340) |
Stage 2 (n = 769) |
Stage 3 (n = 138) |
p | ||||
|---|---|---|---|---|---|---|---|---|
| Age | 18–29 | 133 | 10% | 47 | 6% | 15 | 11% | p < 0.001 |
| 30–39 | 305 | 23% | 146 | 19% | 43 | 31% | ||
| 40–49 | 327 | 24% | 240 | 31% | 36 | 26% | ||
| 50–59 | 333 | 25% | 238 | 31% | 26 | 19% | ||
| >60 | 242 | 18% | 98 | 13% | 18 | 13% | ||
| Sex | Male | 391 | 29% | 247 | 32% | 29 | 21% | p = 0.025 |
| Female | 949 | 71% | 522 | 68% | 109 | 79% | ||
| Place of residence | Village | 239 | 18% | 119 | 15% | 25 | 18% | p = 0. 004 |
| <50,000 | 125 | 9% | 75 | 10% | 6 | 4% | ||
| 50–100 thousand | 35 | 3% | 18 | 2% | 3 | 2% | ||
| 100–500 thousand | 87 | 6% | 28 | 4% | 1 | 1% | ||
| >500,000 | 854 | 64% | 529 | 69% | 103 | 75% | ||
| Education | Basic | 12 | 1% | 10 | 1% | 0 | 0% | p = 0.008 |
| Medium | 428 | 32% | 220 | 29% | 39 | 28% | ||
| Professional | 84 | 6% | 58 | 8% | 0 | 0% | ||
| Higher | 816 | 61% | 481 | 63% | 99 | 72% | ||
| Are they a healthcare worker? | Yes | 1252 | 93% | 685 | 89% | 134 | 97% | p < 0.001 |
| Not | 88 | 7% | 84 | 11% | 4 | 3% | ||
| Chronic diseases | Hypertension | - | - | - | - | 19 | 14% | |
| Type 1 diabetes | - | - | - | - | 0 | 0% | ||
| Type 2 diabetes | - | - | - | - | 11 | 8% | ||
| Obesity | - | - | - | - | 14 | 10% | ||
| COPD | - | - | - | - | 0 | 0% | ||
| Recurrent respiratory tract infections | - | - | - | - | 0 | 0% | ||
| Bronchial asthma | - | - | - | - | 8 | 6% | ||
| Heart diseases | - | - | - | - | 8 | 6% | ||
| Cancer | - | - | - | - | 1 | 1% | ||
| Other | - | - | - | - | 3 | 2% | ||
Abbreviations: ‘-’—lack of data.