Table 3.
Factors associated with symptomatic disease (mild, pneumonia or severe disease) among SARS-CoV-2 Omicron infection
| Number of Asymptomatic (N,%) |
Number of Mild/Pneumonia/Severe/fatal disease (N,%) |
Crude OR(95% CI) | P | adjusted OR(95% CI) | P | |
|---|---|---|---|---|---|---|
| Age (year, quartile) a | 43.0(30.0, 56.0) | 42.0 (28.0, 56.0) | 1.00(1.00,1.00) | 0.644 | 1.00(1.00,1.00) | 0.061 |
| Sex | ||||||
| Male(N,%) | 632 (59.6) | 840(44.0) | Ref | Ref | ||
| Female(N,%) | 429 (40.4) | 1067 (56.0) | 1.87(1.61, 2.18) | <0.001 | 1.88 (1.61, 2.19) | <0.001 |
| Underlying diseases | ||||||
| No(N,%) | 760(71.6) | 1254(65.8) | Ref | Ref | ||
| Yes(N,%) | 301(28.4) | 653(34.2) | 1.32(1.12, 1.55) | 0.001 | 1.43(1.18, 1.73) | <0.001 |
| Vaccination status | ||||||
| 0 dose(N,%) | 145(13.7) | 280(14.7) | Ref | Ref | ||
| 1 dose (N,%) | 53(5.0) | 69(3.6) | 0.67(0.45, 1.02) | 0.060 | 0.79 (0.52, 1.20) | 0.264 |
| 2 doses(N,%) | 621(58.5) | 1194(62.6) | 1.00(0.80, 1.24) | 0.970 | 1.10 (0.87, 1.38) | 0.432 |
| 3 doses (N,%) | 242(22.8) | 364(19.1) | 0.78(0.60, 1.01) | 0.058 | 0.83 (0.64, 1.09) | 0.181 |
a
age was a continuous integer variable in the regression models.