The effect of Orem's Self-Care Deficit Theory-based care during pregnancy and postpartum period on health outcomes: A systematic review and meta-analysis.

What is already known about this topic? The quality of pregnancy and postpartum care is important for the maternal health. The use of nursing theories-which nursing knowledge is produced-improves care quality and ensures that care is organized systematically. What this paper adds? There is insufficient research that supports Orem's theory of self-care deficit in pregnancy and postpartum care and also no systematic review about this topic, but the current meta-analysis showed that postnatal and prenatal treatments based on Orem's theory have a positive impact on the self-care agency. The implications of this paper: The use of Orem's theory helps nurses understand women and their needs during pregnancy and postpartum periods. Integrating Orem's theory of self-care deficit into pregnancy and postpartum nursing care services can help increase women's self-care power.