3606 very preterm infants studied, 919 from foreign-born mothers. Foreign-born mothers older and less likely to have high-school degree. Infants of foreign-born mothers had higher unadjusted odds of amniotic infection syndrome (OR=1.60). Higher linguistic distance unadjusted linked to higher preeclampsia (OR=1.00), amniotic infection syndrome (OR=1.00), and longer hospital stays. After adjustments, foreign-born infants retained 45% higher amniotic infection syndrome odds (OR=1.45). Higher linguistic distance independently raised preeclampsia odds (OR=1.01). No adjusted differences in HELLP, IVH, BPD, sepsis, mode of delivery, antenatal steroids, or hospital stay. Foreign-born mothers had lower unadjusted HELLP odds (OR=0.65). Common immigrant languages included Russian, Turkish, Arabic, English. Authors conclude limited inequalities in perinatal care for immigrants. Study limited to survivors at 5-6 year follow-up, potential selection bias against low-language-proficiency immigrants.