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Table 5 Prevalence of PTB by subtypes, PPROM, spontaneous labor with intact membranes, provider initiated, and unknown subtype, by maternal country of origin, among Black women with GDM in California, 2013–2017, N = 8609

From: Preterm birth and nativity among Black women with gestational diabetes in California, 2013–2017: a population-based retrospective cohort study

Country of origin PPROM
n (row %)
Spontaneous
labor with intact membranes
n (row %)
Provider initiated
n (row %)
Unknown subtype
n (row %)
p-value
U.S. 235 (23.0) 430 (42.0) 333 (32.5) 26 (2.5) 0.5913
Ethiopia a 7 (29.2) 13 (54.2) a
Nigeria a 10 (40.0) 12 (48.0) a
Somalia a a a a
Eritrea a a a a
Ghana a a a a
Other 10 (18.9) 22 (41.5) 18 (34.0) a