Table 5. Results of the logistic regression analysis of the factors of severe coronavirus disease 2019 in pregnant women.
| Characteristics | Univariable OR (95% CI) | P value | Multivariable OR (95% CI) | P value |
|---|---|---|---|---|
| Age, yr | 1.017 (0.959–1.08) | 0.572 | - | - |
| BMIa, kg/m2 | 1.071 (0.993–1.155) (n = 256) | 0.074 | 0.969 (0.877–1.07) (n = 256) | 0.530 |
| Gestational age at the time of infection, wk | 1.121 (1.078–1.165) | < 0.001 | 1.123 (1.076–1.172) | < 0.001 |
| Paritya | 1.517 (1.084–2.123) (n = 234) | 0.015 | 1.466 (1.006–2.135) (n = 234) | 0.046 |
| Comorbidities | 0.557 (0.158–1.971) | 0.364 | - | - |
| Gestational complications | 0.535 (0.203–1.409) | 0.205 | - | - |
BMI = body mass index, CI = confidence interval, OR = odds ratio.
aThe available number of participants was presented as a denominator or in brackets owing to missing data.