The aim of this study was to assess the effectiveness of an intervention program with and without the mothers' training in the development of preterm infants. The participants were 08 preterm infants and their mothers who have been participating in the Intervention and Follow-up Service of Risk Infant in the city of São Carlos, SP. The participants were divided in two groups: 04 infants participated on the intervention group with mothers' orientation and training (experimental group - EG) and 04 infants participated of the intervention group without mothers' orientation and training (control group - CG). The preterm were assessed through Operational Portage Inventory for four months, considering the following areas: infant stimulation, social development, cognition, language, self-care and motor development. The data were then submitted to the regression analysis. The results demonstrated that the EG obtained a larger evolution of the appraised behaviors than the CG one.
preterm infant; development; early intervention; mothers
