A study published in 2014 states that this custom makes it difficult for countries to achieve Millennium Development Goals 3, 4 and 5, by means of a prospective descriptive study in which parturients in Southeastern Nigeria participated.
Estudio de 2014, afirma que esta costumbre dificulta la consecución de los Objetivos de Desarrollo del Milenio 3, 4 y 5, a través de un estudio descriptivo prospectivo en el que participaron parturientas del sureste de Nigeria.