Table 4.
Bivariate analysis for risk factors associated to severe acute respiratory syndrome (SARS) in women with confirmed COVID-19.
| Characteristics | SARS n = 47 |
Not SARS n = 241 |
RR [95% CI] |
|---|---|---|---|
| Number of days with symptoms at enrolmenta | |||
| < 7 | 34 (72.3%) | 162 (72.0%) | Ref. |
| ≥ 7 | 13 (27.7%) | 63 (28.0%) | 0.95 [0.55–1.76] |
| Age | |||
| ≤ 19 | 4 (8.5%) | 10 (4.1%) | 2.04 [0.83–4.99] |
| 19–35 | 29 (61.7%) | 178 (73.9%) | Ref. |
| > 35 | 14 (29.8%) | 53 (22.0%) | 1.49 [0.84–2.65] |
| Ethnicityb | |||
| White | 19 (41.3%) | 139 (58.4%) | Ref. |
| Non-White | 27 (58.7%) | 99 (41.6%) | 1.78 [1.04–3.04] |
| Regions | |||
| North/Northeast | 11 (23.4%) | 34 (14.1%) | 1.65 [0.91–2.99] |
| Southeast/South | 36 (76.6%) | 207 (85.9%) | Ref. |
| Marital statusc | |||
| With partner | 30 (65.2%) | 156 (66.1%) | Ref. |
| Without partner | 16 (34.8%) | 80 (33.9%) | 0.96 [0.55–1.68] |
| Schoolingd | |||
| Primary or less | 16 (43.2%) | 46 (22.9%) | 2.16 [1.21–3.87] |
| Secondary or more | 21 (56.8%) | 155 (77.1%) | Ref |
| Pre-pregnancy BMIe | |||
| Underweight | 0 (0.0%) | 2 (1.2%) | – |
| Normal | 2 (7.1%) | 57 (32.9%) | Ref. |
| Overweight | 10 (35.7%) | 58 (33.5%) | 4.34 [1.00–19.01] |
| Obese | 16 (57.2%) | 56 (32.4%) | 6.55 [1.57–27.37] |
| Source of antenatal caref | |||
| Public | 34 (82.9%) | 152 (66.7%) | 2.16 [1.01–4.68] |
| Private/Insurance/Mixed | 7 (17.1%) | 76 (33.3%) | Ref. |
| Parityg | |||
| Primigravida | 13 (28.3%) | 88 (36.7%) | 0.72 [0.39–1.30] |
| Multipara | 33 (71.7%) | 152 (63.3%) | Ref |
| Planned pregnancyh | 24 (61.5%) | 84 (40.0%) | 2.09 [1.15–3.78] |
| Multiple pregnancy | 0 (0%) | 10 (4.1%) | – |
| Pregnancy status at enrolment | |||
| 1st Trimester | 2 (4.2%) | 34 (14.1%) | Ref. |
| 2nd Trimester | 12 (25.6%) | 61 (25.3%) | 2.95 [0.69–12.52] |
| 3rd Trimester | 26 (55.3%) | 132 (54.8%) | 2.96 [0.73–11.91] |
| Postpartum | 7 (14.9%) | 14 (5.8%) | 6.00 [1.37–26.26] |
| Chronic hypertension | 8 (17.0%) | 17 (7.1%) | 2.15 [1.37–4.10] |
| Pre-existing diabetes | 3 (6.4%) | 3 (1.2%) | 3.20 [1.37–7.46] |
| Asthma | 7 (14.9%) | 14 (5.8%) | 2.22 [1.14–4.34] |
| Anemia | 2 (4.3%) | 2 (0.8%) | 3.15 [1.14–8.71] |
| HIV | 0 (0%) | 3 (1.2%) | – |
| Chronic kidney disease | 0 (0%) | 1 (0.4%) | – |
| Smoking | 1 (2.1%) | 1 (0.4%) | 3.11 [0.75–12.74] |
Missing information for a16, b4, c6, d50, e87, f19, g2, h39.
Significant values are in bold.