Table 2.
Seropositivity associated with behavioral characteristics after the first and second waves of COVID-19.
| Variables | First wave (%) | 95% IC | Second wave (%) | 95% IC | Univariate analysisOR (95% IC) | P | Multivariate analysisOR (95% IC) | P |
|---|---|---|---|---|---|---|---|---|
| Total | 275 (39.1) | 284 (50.1) | ||||||
| Contact with an infected person | ||||||||
| Yes | 82 (29.8) | 24–35 | 212 (74.6) | 69–79 | 0.65 (0.44–0.95) | 0.0290 | ||
| No | 189 (68.7) | 36–74 | 61 (21.5) | 16–26 | (Ref) | |||
| NI | 4 (1.5) | 11 (3.87) | ||||||
| Social isolation | ||||||||
| Yes | 234 (85.1) | 80–89 | 251 (88.4) | 84–92 | (Ref) | (Ref) | ||
| No | 39 (14.2) | 10–18 | 21 (7.39) | 4–10 | 1.99 (1.13–3.48) | 0.0157 | 2.12 (1.13–3.94) | 0.0184 |
| NI | 2 9 (0.7) | 12 (4.23) | ||||||
| Handwashing | ||||||||
| Rarely | 24 (8.7) | 5–12 | 16 (5.63) | 3–8 | 1.15 (0.78–2.91) | 0.2169 | ||
| Many times a day | 250 (90.9) | 87–94 | 252 (88.7) | 85–92 | (Ref) | |||
| NI | 1 (0.4) | 17 (5.63) | ||||||
| Use of mask | ||||||||
| Sometimes | 18 (6.5) | 3–9 | 8 (3.7) | 0–4 | 2.89 (1.12–7.40) | 0.0270 | 3.38 (1.24–9.18) | 0.0168 |
| Always | 245 (89.1) | 85–92 | 236 (83.1) | 78–87 | (Ref) | (Ref) | ||
| NI | 12 (4.4) | 40 (14.1) | ||||||
| Travel history | ||||||||
| Yes | 106 (38.5) | 32–43 | 129 (45.4) | 39–41 | 0.69 (0.49–0.97) | 0.0346 | ||
| No | 167 (60.7) | 55–66 | 147 (51.8) | 45–57 | (Ref) | |||
| NI | 2 (0.8) | 8 (2.8) | ||||||
OR, odds ratio; NI, not informed.
Bold means the values are statiscally significant.