Table 3.
Univariate and Multivariable analysis of reinfection more than 90 days after discharge in non-hospitalized patients over one year old with a history of hospitalization due to COVID-19
| Patient characteristics | Reinfection Rate (per 1000) | Crude Hazard Ratio (95%CI) | P_value | Adjusted Hazard Ratio (95%CI) | P_value |
|---|---|---|---|---|---|
| Age (years) | |||||
| 1–18 | 73.86 | Reference | - | Reference | - |
| 19–44 | 145.77 |
2.20 (0.96–5.05) |
0.169 |
3.26 (1.02–10.42) |
0.046 |
| 45–64 | 129.60 |
1.89 (0.83–4.34) |
0.702 |
3.02 (0.95–9.58) |
0.060 |
| ≥ 65 | 78.35 |
1.15 (0.49–2.70) |
0.861 |
1.50 (0.46–4.87) |
0.500 |
| Sex | |||||
| Female | 127.85 | Reference | - | Reference | - |
| Male | 100.22 |
0.76 (0.56–1.04) |
0.075 |
0.76 (0.55–1.05) |
0.215 |
| Job types | |||||
| Unrelated to healthcare and medical | 109.91 | Reference | - | Reference | - |
| Healthcare worker | 77.89 |
0.81 (0.20–3.28) |
0.629 |
0.91 (0.20–3.96) |
0.400 |
| COVID-19 related health care worker | 345.16 |
3.85 (2.06–7.20) |
< 0.001 |
4.07 (1.93–8.60) |
< 0.001 |
| Cough* | |||||
| No | 98.18 | Reference | - | Reference | - |
| Yes | 134.77 |
1.42 (1.04–1.94) |
0.028 |
1.35 (0.98–1.86) |
0.522 |
| Fever* | |||||
| No | 108.76 | Reference | - | Reference | - |
| Yes | 126.64 |
1.23 (0.89–1.69) |
0.187 |
1.15 (0.83–1.59) |
0.253 |
| PaO2 (mmHg)* | |||||
| < 93 | 129.28 | Reference | - | Reference | - |
| ≥ 93 | 100.38 |
0.79 (0.58–1.08) |
0.231 |
0.62 (0.44–0.87) |
0.006 |
| Respiratory distress* | |||||
| No | 121.40 | Reference | - | Reference | - |
| Yes | 104.63 |
0.81 (0.59–1.11) |
0.055 |
0.78 (0.56–1.10) |
0.080 |
| Muscular pain* | |||||
| No | 109.11 | Reference | - | Reference | - |
| Yes | 125.31 |
1.12 (0.81–1.55) |
0.297 |
1.02 (0.72–1.44) |
0.106 |
| Comorbidity score | |||||
| 0 | 127.57 | Reference | - | Reference | - |
| 1 | 85.07 |
0.65 (0.42–0.99) |
0.048 |
0.60 (0.38–0.94) |
0.026 |
| 2 | 94.66 |
0.74 (0.41–1.32) |
0.312 |
0.70 (0.38–1.29) |
0.256 |
| 3 | 46.38 |
0.32 (0.04–2.38) |
0.276 |
0.49 (0.06–3.69) |
0.498 |
| Vaccination status | |||||
| Lower than two doses | 175.34 | Reference | - | Reference | - |
| Two or more than two doses | 70.67 |
0.36 (0.26–0.50) |
< 0.001 |
0.26 (0.18–0.36) |
< 0.001 |
*At the time of first hospitalization and initial infection
PaO2: partial pressure of oxygen