Validation of a tool to evaluate women's satisfaction with breastfeeding for the Brazilian population
Validação de instrumento para avaliação da satisfação da mulher com a amamentaçãopara a população brasileira
J. pediatr. (Rio J.); 96 (1), 2020
Publication year: 2020
Abstract Objective To perform the construct validity and the internal consistency of the Maternal Breastfeeding Evaluation Scale tool, aiming at its application in the Brazilian population. Methods Cross-sectional study that applied the tool to 287 Brazilian women 30 days after childbirth. Main component analysis with varimax rotation was used for the factor analysis, verifying the number of subscales and the maintenance or extraction of the components. Four hypotheses were tested using the unpaired Student's t-test for construct validation. The reliability analysis was performed using Cronbach's alpha coefficient. Results The exploratory factor analysis identified the need to exclude an item and to reformulate the subscales.
The results of the construct validity showed that all hypotheses proposed were confirmed:
women who were breastfeeding, those who were exclusively breastfeeding, those who did not have problems related to breastfeeding, and those who intended to breastfeed for at least 12 months achieved significantly higher mean values in the scale. The tool showed adequate internal consistency (Cronbach's alpha = 0.88, 95% CI: 0.86-0.90), as did the pleasure and fulfillment of the maternal role subscales (0.92, 95% CI: 0.91-0.93%); child growth, development, and satisfaction (0.70; 95% CI: 0.65-0.75); and maternal physical, social, and emotional aspects (0.75, 95% CI: 0.70-0.79). Conclusions The validation process of the Brazilian version of the Maternal Breastfeeding Evaluation Scale tool showed that it is valid and reliable tool to be applied to the Brazilian population.
Resumo Objetivo Realizar a validação de constructo e avaliar a consistência interna do instrumento Maternal Breastfeeding Evaluation Scale, visando à sua aplicação na população brasileira. Métodos Estudo transversal com aplicação do instrumento a 287 mulheres brasileiras após 30 dias do nascimento da criança. Para a análise fatorial utilizou-se a análise de componentes principais com rotação varimax, verificando o número de subescalas e a manutenção ou extração dos componentes. Para a validação de constructo quatro hipóteses foram testadas pelo teste T-student não pareado. A análise de confiabilidade foi realizada utilizando o coeficiente de alfa de Cronbach. Resultados A análise fatorial exploratória identificou a necessidade de exclusão de um item e a reformulação das subescalas.