Black women in Connecticut remain more likely than white or Hispanic women to deliver preterm babies, despite efforts to reduce the disparity, newly released data show. In 2014, 12 percent of all births by black women in the state were preterm, meaning they occurred before 37 weeks gestation, according to data compiled by the Henry J. Kaiser Family Foundation. That compares with 9 percent of all births by white women and 10 percent of all births by Hispanic women that were preterm during the same year. Nationally, the trend was similar with 13 percent of births by black women occurring preterm compared with 9 percent of white women’s births and 9 percent of Hispanic women’s births. In the vast majority of states, black women experience a higher rate of preterm births than whites or Hispanic women, according to the state-by-state comparison of the Kaiser data.