Validation of Nursing Outcomes Related to Breastfeeding Establishment.

Purpose: To clinically validate indicators of the nursing outcomes "Breastfeeding establishment: Infant (1000)" and "Breastfeeding establishment: maternal (1001)", and their conceptual and operational definitions in infants admitted to a neonatal unit and their mothers.

Method: This study utilized several methods in a stepwise approach including an integrative review of the literature, content validation, and clinical validation. The content validity index was performed by eight experts, who evaluated revised content of the studied nursing outcomes.