title: Variables associated with breastfeeding duration.
abstract: OBJECTIVE
  To identify the variables associated with breastfeeding duration.
  
  
  METHODS
  The health science reference databases of CINAHL, PubMed, and the Cochrane Database of Systematic Reviews.
  
  
  METHODS
  Meta-analyses, Cochrane reviews, literature reviews, and quantitative and qualitative studies published in English from 1998 through 2008.
  
  
  METHODS
  Data included all variables, both positive and negative, that were found to influence the outcome of breastfeeding duration.
  
  
  RESULTS
  Demographic factors that influence breastfeeding duration are race, age, marital status, education, socioeconomics, and Special Supplemental Nutrition Program for Women, Infants, and Children status. Biological variables consisted of insufficient milk supply, infant health problems, maternal obesity, and the physical challenges of breastfeeding, maternal smoking, parity, and method of delivery. Social variables included paid work, family support, and professional support. Maternal intention, interest, and confidence in breastfeeding were psychological variables.
  
  
  CONCLUSIONS
  Human lactation is a complex phenomena and the duration of breastfeeding is influenced by many demographic, physical, social, and psychological variables.
authors.affiliation: University of Rhode Island, College of Nursing, 2 Heathman Road, White Hall, Kingston, RI 02881, USA. thuliers@cox.net
authors.forename: Diane
authors.initials: D
authors.lastname: Thulier
authors.forename: Judith
authors.initials: J
authors.lastname: Mercer
mesh_terms: D000328:Adult; D017677:Age Distribution; D001942:Breast Feeding / Q000453:epidemiology* / Q000523:psychology; D005260:Female; D014943:Global Health; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D007223:Infant; D041943:Infant Formula / Q000706:statistics & numerical data; D007231:Infant, Newborn; D007775:Lactation Disorders / Q000453:epidemiology; D015999:Multivariate Analysis; D044469:Racial Groups / Q000706:statistics & numerical data; D012944:Social Support; D012959:Socioeconomic Factors; D013997:Time Factors