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Cohort study
Preterm birth, a known risk factor for infant and childhood death, is an independent risk factor for mortality in early childhood and young adulthood
  1. Geeta Krishna Swamy
  1. Department of Obsterics and Gynaecology, Duke University, Durham, North Carolina, USA
  1. Correspondence to Geeta Krishna Swamy
    Department of Obsterics and Gynaecology, Duke University, 2608 Erwin Rd, Suite 200, Durham, North Carolina 27516, USA; swamy002{at}

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Preterm birth, delivery before 37 weeks gestation, is a leading cause of perinatal morbidity and mortality worldwide.1 Despite extensive research efforts, the prevalence of preterm birth in the USA has increased to 12% over the last 30 years compared with 5–9% in Europe.2 Furthermore, pharmacologic and medical technologic advances (eg, antenatal corticosteroids, antibiotic prophylaxis, surfactant therapy and high-frequency ventilation) have led to significantly improved survival among preterm-born individuals.3 Although much is known about the short-term effect of preterm birth,4 less is known about longer-term outcomes in adulthood. Given the increasing preterm birth survivorship and the inability, thus far, to significantly reduce preterm birth, understanding …

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  • Competing interests None.