Racial/ethnic disparities in the association of maternal diabetes and obesity with risk of preterm birth among 17 million mother-infant pairs in the United States: a population-based cohort study.

However, from pre-pregnancy underweight to obesity III, the magnitude of the association between pre-pregnancy diabetes and preterm birth decreased for non-Hispanic Black women (underweight, 4.47 [3.34–5.99], normal weight 4.28 [3.98–4.60], overweight 3.29 [3.11–3.49], obesity I 3.09 [2.93–3.26], obesity II 2.98 [2.82–3.16], obesity III 3.19 [3.04–3.35]), while it showed an increasing trend for non-Hispanic Asians ( underweight 1.45 [0.91–2.30], normal weight 2.16 [1.90–2.47], overweight 2.71 [2.47–2.97], obesity I 3.10 [2.82–3.41], obesity II 3.58 [3.13–4.09], obesity III 3.99 [3.34–4.77]).

also in 63,971 other papers