Association between the use of a baby's bottle and pacifier and the absence of breastfeeding in the second six months of life.

Introduction: The World Health Organization recommends breastfeeding for two years or more and advises against bottle feeding and pacifier use.

Objective: Investigate the association between bottle feeding and pacifier use, and breastfeeding in the second half-year of life.

Methods: Survey in a municipality of Rio de Janeiro state, in 2006, interviewing those responsible for 580 children aged 6-11 months.