title: Factors associated with caregivers' choice of infant sleep position, 1994-1998: the National Infant Sleep Position Study.
abstract: BACKGROUND
  The success and simplicity of the 1994 national "Back to Sleep" campaign to reduce sudden infant death syndrome provides an opportunity to study which elements determine whether a behavior will change in the desired direction in response to a public health intervention.
  
  
  OBJECTIVE
  To examine sociodemographic characteristics, motivation, and message exposure to ascertain which factors influenced a caregiver's choice of infant sleep position after implementation of the campaign.
  
  
  METHODS
  Annual nationally representative telephone surveys conducted between 1994 and 1998.
  
  
  METHODS
  The 48 contiguous United States.
  
  
  METHODS
  Nighttime caregivers of infants born within the 7 months prior to interview between 1994 and 1998. Approximately 1000 interviews were conducted each year.
  
  
  METHODS
  The position the infant was usually placed in for sleep, sleep position recommendations received from specific sources, and reasons reported for position choice.
  
  
  RESULTS
  Between 1994 and 1998, prone placement declined from 44% to 17% among white infants and from 53% to 32% among black infants. Supine placement increased from 27% to 58% among white infants and from 17% to 31% among black infants. During this period, reports of supine recommendations from at least 1 source doubled from 38% to 79%. From 1995 to 1998, 86% of caregivers who placed the infant prone reported receiving only nonprone recommendations. Infant comfort was given as a reason for prone placement by 82% of these caregivers. In multivariate analysis, physician recommendation of "supine not prone" had the strongest influence and was associated with decreased prone placement (odds ratio [OR], 0.25 [95% confidence interval [CI], 0.16-0.39]) and increased supine placement (OR, 3.37 [95% CI, 2.38-4.76]). Recommendations from all 4 sources (the physician, neonatal nurse, reading materials, and radio/television) further increased the probability of supine placement (OR, 6.01 [95% CI, 4.57-7.90]). Other factors independently associated with increased prone and decreased supine placement included maternal black race, parity of more than 1, and living in a southern or mid-Atlantic state.
  
  
  CONCLUSIONS
  According to our study, as of 1998, approximately one fifth of infants were still placed prone, and only half were placed supine. Recommendations of supine placement during infancy by physicians at well-baby checks and by neonatal nursery staff and print and broadcast media have increased the proportion of infants placed supine. Caregiver beliefs regarding perceived advantages of prone sleeping should be addressed to attain further reduction in prone placement.
authors.affiliation: Pregnancy and Perinatology Branch, Center for Research for Mothers and Children, National Institute of Child Health and Human Development, Bethesda, MD 20892-7510, USA. mw75q@nih.gov
authors.forename: M
authors.initials: M
authors.lastname: Willinger
authors.forename: C W
authors.initials: CW
authors.lastname: Ko
authors.forename: H J
authors.initials: HJ
authors.lastname: Hoffman
authors.forename: R C
authors.initials: RC
authors.lastname: Kessler
authors.forename: M J
authors.initials: MJ
authors.lastname: Corwin
mesh_terms: D002755:Choice Behavior; D003625:Data Collection; D006293:Health Promotion; D006801:Humans; D007223:Infant; D007224:Infant Care / Q000523:psychology / Q000706:statistics & numerical data / Q000639:trends*; D016015:Logistic Models; D015999:Multivariate Analysis; D016684:Prone Position; D012890:Sleep; D012959:Socioeconomic Factors; D013398:Sudden Infant Death / Q000517:prevention & control*; D016683:Supine Position; D014481:United States / Q000453:epidemiology