Factors associated with infant pain response following an immunization injection.

Objectives: Specific potential determinants of infant pain response were assessed in the context of a 4- or 6-month immunization injection. The distal influences of gender, gestational and current age, temperament, and early nociceptive stimuli were considered, as well as the proximal influences of parental and nurse coping-promoting statements within the treatment room.

Study Design: An observational study design was used.