Table 1. Characteristic of studies describing pregnant women infected by SARS-CoV-2
Author and year of publication Local of Study Nº of
pregnant
Age
range
Gestational age Nº of
 patients at ICU
Nº of
deliveries
Nº of preterm births Vertical
transmission
Fan et al., 2020 Hospital of Wuhan
University (China)
2 29-34 3rd trimester 0 1 1 none
Chen et al., 2020b Hospital of Wuhan
University (China)
9 26-40 3rd trimester 0 9 0 none
Liu et al., 2020c The First Affiliated
Hospital of Sun Yat-sen
University (China)
13 22-36 2nd trimester (n=2)
and
3rd trimester (n=11)
1 10 6 none
Zhu et al., 2020 Maternal and Child
Health Hospital of
Hubei Province (China)
9 25-35 3rd trimester 0 9 0 none
Wang et al., 2020a The Affiliated Infectious
Hospital of Soochow
University (China)
1 28 3rd trimester 1 1 1 none
Zhang et al.2020 Hospital of Wuhan
University (China)
16 24-34 3rd trimester 1 16 0 none
Wen et al., 2020 Qingdao Women and
Children’s Hospital (China)
1 31 3rd trimester 0 1 0 none
Liu et al., 2020b Hospital of Wuhan
University (China)
15 23-40 2rd trimester (n=3)
and
3rd trimester (n=12)
0 11 0 none
Chen et al., 2020c Tongji Medical College
(China)
3   3rd trimester 0 3 0 none
Total   69 23-40 2rd trimester (n=5)
and
3rd trimester (n=64)
3 61 8 none
Nº: Number; ICU: Intensive Care Unit