From: Preterm birth and nativity among Black women with gestational diabetes in California, 2013–2017: a population-based retrospective cohort study
Country of origin
Number of mothers
Total PTB
n (row%)
p value
All
8609
1148 (13.3)
p < 0.0001
U.S.
7222
1024 (14.2)
Ethiopia
346
24 (6.9)
Nigeria
246
25 (10.2)
Somalia
120
10 (8.3)
Eritrea
91
a
Ghana
68
8 (11.8)
Other
516
53 (10.3)