Table 3 Risk factors for a positive RT-PCR swab for SARS-CoV-2.

From: The impact of COVID-19 on pregnancy outcomes in a diverse cohort in England

Risk factor

Odds ratio

95% CI

p value

Maternal age > 35 years

0.75

0.54–1.05

0.09

BMI > 35 kg/m2

1.71

1.14–2.55

0.009

Ethnicity

White

1.0 (ref)a

  

Black

1.62

1.10–2.37

0.01

Asian

1.58

1.14–2.20

0.006

Mixed

0.45

0.11–1.86

0.27

Other

1.50

0.92–2.46

0.11

Not recorded

1.43

0.34–5.97

0.62

  1. Significant values are in bold.
  2. aFor ethnicity, the modal group was used as a reference to calculate odds ratios.
Back to article page