Trial of labor after C-section uncommon, but often successful

They were significantly less likely to succeed in being delivered vaginally if they were black, Hispanic, or Asian (odds ratios, 0.80, 0.92, and 0.86); were younger than age 20 (0.72); had pregestational diabetes (0.50) or gestational diabetes (0.81); or had chronic hypertension (0.56) or gestational hypertension (0.70).