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OBJECTIVES: The aim of this study was to examine the effectiveness of an early intervention program on behavioral outcomes at corrected age of 5 years for children with birth weights (BWs) of <2000 g. METHODS: A randomized controlled trial of a modified version of the Mother-Infant Transaction Program was performed. Outcomes were measured by the Child Behavior Check List report (parents) and Strengths and Difficulties Questionnaire at 5 years (parents and preschool teachers). RESULTS: A total of 146 infants were assigned randomly (intervention group: 72 infants; reference group: 74 infants). A term group was recruited (75 infants). The mean BWs were 1396 ± 429 g for the intervention group, 1381 ± 436 g for the control group, and 3619 ± 490 g for the term reference group. Parents in the intervention group reported significantly fewer behavioral problems measured by both instruments at 5 years. There were no differences in behavior problems reported by preschool teachers. Significantly more children in the preterm control group scored within the clinical area of both instruments. CONCLUSION: This modified version of the Mother-Infant Transaction Program led to fewer behavioral problems reported by parents at corrected age of 5 years for children with BWs of <2000 g.
Nordhov et al. (Tue,) studied this question.