A Comprehensive Model for Exploring Unexplored Predictors of Fertility among Nigerian Women

Abstract This study investigated unexplored predictors of fertility in Nigeria, integrating them with established global predictors to create a comprehensive fertility model. The base model used traditional predictors, while subsequent models evaluated new ones. Insignificant predictors were excluded based on AICc values. The final model revealed significant regional variations in fertility rates. Women in the North-East, North-West, and South-East regions had higher Total Children Ever Born (TCEB) than those in the North-Central region, while women in the South-West had lower TCEB. Educational attainment inversely affected fertility, with higher TCEB among women with no, primary, and secondary education compared to those with higher education. Contraceptive methods significantly reduced TCEB, including female sterilization, injections, male condoms, and emergency contraception. Marital status and decision-making dynamics were crucial; married women, women living with their partner, and widows had higher TCEB than divorced women. Women whose healthcare decisions were made solely by their husband had significantly higher TCEB. Additionally, internet use and terminated pregnancies were associated with lower TCEB. These findings align with existing literature on fertility determinants in sub-Saharan Africa, highlighting regional disparities and the impacts of education, contraceptive use, marital status, and decision-making dynamics. The results advocate for culturally sensitive, region-specific family planning interventions, promotion of female education, increased access to contraceptives, and strategies empowering women in decision-making. Enhanced family planning efforts through information technology and continuous program adaptation are essential for sustainable population growth in Nigeria.