title: Relationships between physical abuse during pregnancy and risk factors for preterm birth among women in Manitoba.
abstract: OBJECTIVE
  To describe the prevalence and correlates of physical abuse during the year of pregnancy and to explore the association between physical abuse and other risk factors for preterm birth.
  
  
  METHODS
  Secondary analysis of data from a case-control study of risk factors for preterm birth.
  
  
  METHODS
  Two tertiary care hospitals in the Canadian province of Manitoba.
  
  
  METHODS
  Six hundred eighty postpartum women who delivered a live singleton newborn after spontaneous onset of labor.
  
  
  METHODS
  Instruments included the Abuse Assessment Screen, Prenatal Psychosocial Profile, Perceived Stress Scale, and a questionnaire to collect data on demographic characteristics, complications during pregnancy, and lifestyle behaviors.
  
  
  RESULTS
  Sixty-four women (9.4%) reported being physically abused during the year of pregnancy. Abused women were significantly more likely to be younger, single, of lower income, and less educated than nonabused women. Significant correlates of abuse, after adjusting for other factors in a logistic regression, included the following: illicit drug use, low support from partner, moving two or more times in the past year, high life event stress, bladder infection during pregnancy, Aboriginal race/ethnicity, and single marital status.
  
  
  CONCLUSIONS
  This study suggests that physical abuse during pregnancy is associated with other risk factors for preterm birth, particularly stress and behavioral risk factors such as substance abuse.
authors.affiliation: Faculty of Nursing, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2. maureen_heaman@umanitoba.ca
authors.forename: Maureen I
authors.initials: MI
authors.lastname: Heaman
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D018585:Battered Women / Q000706:statistics & numerical data*; D016022:Case-Control Studies; D016009:Chi-Square Distribution; D015400:Clinical Nursing Research; D016001:Confidence Intervals; D005260:Female; D005500:Follow-Up Studies; D005865:Gestational Age; D006801:Humans; D015994:Incidence; D007231:Infant, Newborn; D007234:Infant, Premature; D008350:Manitoba / Q000453:epidemiology; D016017:Odds Ratio; D011247:Pregnancy; D047928:Premature Birth / Q000209:etiology*; D011336:Probability; D012016:Reference Values; D012307:Risk Factors; D012959:Socioeconomic Factors; D013179:Spouse Abuse / Q000706:statistics & numerical data; D013315:Stress, Psychological