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Sleep and rates of shortened gestation by race. In a model with PSQI and race and adjusting for age, income, and BMI, compared to women with PSQI ≤ 6, those with PSQI > 6 did not differ significantly in risk for spontaneous shortened gestation (OR [95% CI] = 1.44 [0.80, 2.57], p = 0.22). In this model, Black women were marginally more likely to have higher risk of spontaneous shortened gestation (p = 0.057) (bars indicate 95% confidence intervals).
