title: [Prevalence of factors associated with the duration of exclusive breastfeeding during the first 6 months of life in the INMA birth cohort in Gipuzkoa].
abstract: OBJECTIVE
  To estimate the prevalence of exclusive breastfeeding (EB) during the first 6 months of life in the Gipuzkoa birth cohort, identify the reasons for abandonment of EB, and establish the associated factors.
  
  
  METHODS
  The study population consisted of 638 pregnant women from the INMA-Gipuzkoa (Infancia y Medio Ambiente, www.proyectoinma.org) birth cohort, who were followed up from the third trimester of pregnancy until the child was aged 14 months. To determine the factors related to abandonment of EB, logistic regression models were used in two different stages (4 months or early stage and 6 months or late stage).
  
  
  RESULTS
  The prevalence of EB within the Gipuzkoa cohort was 84.8% after hospital discharge, 53.7% at 4 months of life and 15.4% at 6 months of life. The reasons given by the mothers for early EB cessation were: breastfeeding problems, low weight gain and hypogalactia. Other factors influencing the early phase were the intention to provide EB, parity, area of residence and social class. Abandonment in the late stage was influenced by the length of maternity leave.
  
  
  CONCLUSIONS
  From a public health perspective, the results of this study could help health professionals to develop strategies to support breastfeeding mothers, taking into account the main reasons for early and late abandonment.
authors.affiliation: Instituto de investigación Sanitaria, BIODONOSTIA, San Sebastián, Guipúzcoa, España.
authors.forename: Madalen
authors.initials: M
authors.lastname: Oribe
authors.affiliation: Instituto de investigación Sanitaria, BIODONOSTIA, San Sebastián, Guipúzcoa, España; Departamento de Medicina Preventiva y Salud Pública, UPV/EHU, Leioa, Vizcaya, España.
authors.forename: Aitana
authors.initials: A
authors.lastname: Lertxundi
authors.affiliation: Instituto de investigación Sanitaria, BIODONOSTIA, San Sebastián, Guipúzcoa, España; Subdirección de Salud Pública de Gipuzkoa, Gobierno Vasco, San Sebastián, Guipúzcoa, España; CIBER de Epidemiología y Salud Pública (CIBERESP), España.
authors.forename: Mikel
authors.initials: M
authors.lastname: Basterrechea
authors.affiliation: Instituto de investigación Sanitaria, BIODONOSTIA, San Sebastián, Guipúzcoa, España.
authors.forename: Haizea
authors.initials: H
authors.lastname: Begiristain
authors.affiliation: Instituto de investigación Sanitaria, BIODONOSTIA, San Sebastián, Guipúzcoa, España; Subdirección de Salud Pública de Gipuzkoa, Gobierno Vasco, San Sebastián, Guipúzcoa, España; CIBER de Epidemiología y Salud Pública (CIBERESP), España.
authors.forename: Loreto
authors.initials: L
authors.lastname: Santa Marina
authors.affiliation: Instituto de investigación Sanitaria, BIODONOSTIA, San Sebastián, Guipúzcoa, España.
authors.forename: María
authors.initials: M
authors.lastname: Villar
authors.affiliation: Instituto de investigación Sanitaria, BIODONOSTIA, San Sebastián, Guipúzcoa, España; CIBER de Epidemiología y Salud Pública (CIBERESP), España; Dirección de Salud Pública y Adicciones, Departamento de Salud del Gobierno Vasco, Vitoria-Gasteiz, Álava, España.
authors.forename: Miren
authors.initials: M
authors.lastname: Dorronsoro
authors.affiliation: Instituto de investigación Sanitaria, BIODONOSTIA, San Sebastián, Guipúzcoa, España; Subdirección de Salud Pública de Gipuzkoa, Gobierno Vasco, San Sebastián, Guipúzcoa, España; CIBER de Epidemiología y Salud Pública (CIBERESP), España.
authors.forename: Pilar
authors.initials: P
authors.lastname: Amiano
authors.affiliation: Instituto de investigación Sanitaria, BIODONOSTIA, San Sebastián, Guipúzcoa, España; Subdirección de Salud Pública de Gipuzkoa, Gobierno Vasco, San Sebastián, Guipúzcoa, España; CIBER de Epidemiología y Salud Pública (CIBERESP), España; Dirección de Salud Pública y Adicciones, Departamento de Salud del Gobierno Vasco, Vitoria-Gasteiz, Álava, España. Electronic address: mambien3-san@ej-gv.es.
authors.forename: Jesús
authors.initials: J
authors.lastname: Ibarluzea
mesh_terms: D000293:Adolescent; D000328:Adult; D001942:Breast Feeding / Q000706:statistics & numerical data*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D009035:Mothers / Q000523:psychology; D009042:Motivation; D016524:Parental Leave; D011247:Pregnancy; D012959:Socioeconomic Factors; D013030:Spain; D055815:Young Adult
keywords: Abandono precoz de la lactancia materna; Breastfeeding; Early breastfeeding cessation; Escasa ganancia de peso; Exclusive breastfeeding; Factores de riesgo; Hipogalactia; Hypogalactia; Lactancia materna; Lactancia materna exclusiva; Low weight gain; Risk factors