Table 3.
Univariable and Multivariable Analyses of Factors Associated with COVID-19
| Factor | Univariable analysis | Multivariable analysis | ||
|---|---|---|---|---|
| OR (95% CI) | p-value | aOR (95% CI) | p-value | |
| Age—years | <.0001 | |||
| <20 | 0.98 (0.61–1.63) | .94 | 0.99 | NS |
| 20–30 | 1.00 | — | 1.00 | — |
| 30–40 | 1.01 (0.78–1.31) | .93 | 1.00 | NS |
| 0–50 | 1.42 (0.77–2.12) | .07 | 1.30 | NS |
| >50 | 2.84 (1.30–7.5) | .01 | 2.6 (1.17–6.9) | .03 |
| Sex | .83 | NS | ||
| Male | 1.00 | — | 1.00 | — |
| Female | 0.96 (0.70–1.35) | — | 1.00 | — |
| Body mass index | ||||
| <20 | 0.68 (0.42–1.13) | .13 | 0.70 | NS |
| 20–25 | 1.00 | — | 1.00 | — |
| 25–30 | 0.93 (0.73–1.20) | .60 | 0.90 | NS |
| >30 | 0.71 (0.44–1.18) | .18 | 0.69 | NS |
| Tobacco | ||||
| Never smoker | 1.00 | — | 1.00 | — |
| Former smoker | 0.98 (0.70–1.38) | .93 | 0.98 | NS |
| Active smoker | 0.59 (0.45–0.78) | <0.001 | 0.64 (0.49–0.84) | .001 |
| Blood group | ||||
| O | 0.86 (0.67–1.10) | .22 | NA | — |
| A | 1.00 | — | NA | — |
| B | 0.82 (0.57–1.21) | .31 | NA | — |
| AB | 0.99 (0.56–1.83) | .97 | NA | — |
OR, odds ratio; aOR, adjusted OR; NS, nonsignificant; NA, not applicable.