Table 4 Bivariate analysis for risk factors associated to severe acute respiratory syndrome (SARS) in women with confirmed COVID-19.

Number of days with symptoms at enrolment^a

 < 7

Ref.

 ≥ 7

0.95 [0.55–1.76]

Age

 ≤ 19

2.04 [0.83–4.99]

19–35

Ref.

 > 35

1.49 [0.84–2.65]

Ethnicity^b

White

Ref.

Non-White

1.78 [1.04–3.04]

Regions

North/Northeast

1.65 [0.91–2.99]

Southeast/South

Ref.

Marital status^c

With partner

Ref.

Without partner

0.96 [0.55–1.68]

Schooling^d

Primary or less

2.16 [1.21–3.87]

Secondary or more

Ref

Pre-pregnancy BMI^e

Underweight

–

Normal

Ref.

Overweight

4.34 [1.00–19.01]

Obese

6.55 [1.57–27.37]

Source of antenatal care^f

Public

2.16 [1.01–4.68]

Private/Insurance/Mixed

Ref.

Parity^g

Primigravida

0.72 [0.39–1.30]

Multipara

Ref

Planned pregnancy^h

2.09 [1.15–3.78]

Multiple pregnancy

–

Pregnancy status at enrolment

1st Trimester

Ref.

2nd Trimester

2.95 [0.69–12.52]

3rd Trimester

2.96 [0.73–11.91]

Postpartum

6.00 [1.37–26.26]

Chronic hypertension

2.15 [1.37–4.10]

Pre-existing diabetes

3.20 [1.37–7.46]

Asthma

2.22 [1.14–4.34]

Anemia

3.15 [1.14–8.71]

HIV

–

Chronic kidney disease

–

Smoking

3.11 [0.75–12.74]