title: Racial/Ethnic Differences in Correlates of Spontaneous and Medically-Indicated Late Preterm Births among Adolescents.
abstract: OBJECTIVE
  To investigate the racial/ethnic differences in the correlates of spontaneous and medically-indicated late preterm birth (LPTB), defined as deliveries between 34 0/7 and 36 6/7 weeks gestation, among US adolescents.
  
  
  METHODS
  Population-based, retrospective cohort study.
  
  
  METHODS
  Births in the United States to adolescents in 2012.
  
  
  METHODS
  Adolescents (younger than 20 years; n = 171,573) who delivered nonanomalous singleton first births between 34 and 44 weeks of gestation.
  
  
  METHODS
  Bivariate and multivariable logistic regression were used to evaluate the associations between maternal risk factors and spontaneous and medically-indicated LPTB, stratified according to maternal race/ethnicity.
  
  
  RESULTS
  Risk factors for spontaneous LPTB included single marital status among Asian adolescents; no insurance coverage among whites, Asian, and Hispanic adolescents; inadequate prenatal care among all racial/ethnic groups except American Indian, and adequate plus prenatal care among all races/ethnicities; prenatal smoking among whites and black adolescents; insufficient gestational weight gain among all racial/ethnic groups except American Indian; and prepregnancy underweight among white, black, and Hispanic adolescents. Risk factors for medically-indicated LPTB included inadequate prenatal care among white, black, and Hispanic adolescents, and adequate plus prenatal care among all racial/ethnic groups except Asian; insufficient gestational weight gain among white, black, and Hispanic adolescents; and prepregnancy overweight and obesity among white, black, and Hispanic adolescents.
  
  
  CONCLUSIONS
  Our results show racial/ethnic differences in the correlates of spontaneous and medically-indicated LPTB among US adolescents and support the need for risk-specific interventions among different racial/ethnic groups.
authors.affiliation: Department of Epidemiology, College for Public Health and Social Justice, Saint Louis University, Saint Louis, Missouri.
authors.forename: M
authors.initials: M
authors.lastname: Tabet
authors.affiliation: Department of Epidemiology, College for Public Health and Social Justice, Saint Louis University, Saint Louis, Missouri.
authors.forename: S
authors.initials: S
authors.lastname: Jakhar
authors.affiliation: Department of Epidemiology, College for Public Health and Social Justice, Saint Louis University, Saint Louis, Missouri.
authors.forename: C A
authors.initials: CA
authors.lastname: Williams
authors.affiliation: Department of Epidemiology, College for Public Health and Social Justice, Saint Louis University, Saint Louis, Missouri.
authors.forename: U
authors.initials: U
authors.lastname: Rawat
authors.affiliation: Department of Epidemiology, College for Public Health and Social Justice, Saint Louis University, Saint Louis, Missouri.
authors.forename: Y D
authors.initials: YD
authors.lastname: Hailegiorgis
authors.affiliation: Department of Epidemiology, College for Public Health and Social Justice, Saint Louis University, Saint Louis, Missouri.
authors.forename: L H
authors.initials: LH
authors.lastname: Flick
authors.affiliation: Department of Epidemiology, College for Public Health and Social Justice, Saint Louis University, Saint Louis, Missouri. Electronic address: jjchang@slu.edu.
authors.forename: J J
authors.initials: JJ
authors.lastname: Chang
mesh_terms: D000293:Adolescent; D001741:Black or African American / Q000706:statistics & numerical data; D001213:Asian / Q000706:statistics & numerical data; D005006:Ethnicity / Q000706:statistics & numerical data*; D005260:Female; D005865:Gestational Age; D054624:Health Status Disparities; D006630:Hispanic or Latino / Q000706:statistics & numerical data; D006801:Humans; D007198:Indians, North American / Q000706:statistics & numerical data; D007231:Infant, Newborn; D016015:Logistic Models; D009765:Obesity / Q000150:complications; D011247:Pregnancy; D047928:Premature Birth / Q000208:ethnology* / Q000209:etiology; D011295:Prenatal Care / Q000706:statistics & numerical data*; D012189:Retrospective Studies; D012307:Risk Factors; D014481:United States; D044465:White People / Q000706:statistics & numerical data; D055815:Young Adult
keywords: Adolescents; Correlates; Late preterm births; Racial differences