Abstract
Background: The total fertility rate (TFR) is a key indicator of population dynamics and health. It shows the average number of children a woman would have in her lifetime, based on the current fertility rates for different age groups. Various factors affect the TFR, such as social, economic, political, technological, environmental, and health factors. By analyzing these factors and how they influence the TFR, policymakers and planners can design and implement interventions to achieve optimal population and health outcomes. Methods: We searched PubMed, Scopus, ISI Web of Science, and ProQuest databases, as well as the Google Scholar search engine systematically. We searched for studies from 13 December 2021 - 20 May 2022, without time limits. We included studies that described at least one driver of TFR. We applied the STEEPH framework (social, technology, environmental, economic, political, and health) method to analyze the qualitative data. Results: We included 64 studies from 26 countries. We identified 410 drivers of TFR, and classified 181 drivers into six main categories: Social, technological, environmental, economic, political, and health. The main factors that lower the fertility rate are education, aging, poverty, postponing marriage (social), exposure of women to mass media (technology), type of residence and living in urban areas, road accidents (environmental), income and economic situation (recession and inflation), unemployment, debt, women’s employment (economic), government policies (political), use of anti-fertility drugs (health). The main drivers that raise the fertility rate are having first child girls, women’s proximity to their workplace (social), use of assisted reproductive technology (technology), living in rural areas and natural and unnatural disasters (environmental), improvement in men’s labor market conditions, employment opportunities (economic), increased parental leave (political), high infant mortality (health). Conclusions: We identified a comprehensive list of effective drivers that have increased or decreased TFR in different parts of the world. It is necessary to review these drivers considering the specific conditions and social, cultural, economic, and political coordinates of each country. This review should inform policymakers' actions in this area.