Socioeconomic Moderators of the Association Between Delayed Breastfeeding Initiation and Place of Delivery: Cross-Sectional Study (Preprint)

BACKGROUND Breastfeeding is a crucial and irreplaceable method of feeding infants. Despite the well-established advantages of early breastfeeding initiation, its progress remains constrained. Over half of Indian mothers witness delayed breastfeeding initiation. Various factors have been implicated to influence breastfeeding initiation, with institutional deliveries emerging as a crucial factor among them. OBJECTIVE We tested the hypothesized association between institutional delivery and initiation delays and identified how various socioeconomic variables moderate (weaken, strengthen, or reverse) the association between breastfeeding initiation delays and place of delivery. METHODS This cross-sectional study analyses data of 106,569 breastfeeding mothers from the NFHS-5 (National Family Health Survey, 2019-21). Missing data were managed by using a complete case analysis approach. The outcome variable was the timing of breastfeeding initiation for the most recent child, with the place of delivery being the explanatory variable. Socioeconomic factors including age, education level, marital status, place of residence, and wealth index were considered moderating variables. Logistic regression–based moderation analysis explored how these variables influence the relationship between breastfeeding initiation delays and place of delivery. Separate binary logistic regression models analyzed the effect of each moderating variable. Statistical analysis was conducted using IBM SPSS Statistics 26. RESULTS The highest occurrence of delayed breastfeeding initiation was observed among mothers aged ≥36 years (58.3%), lacking formal education (60.9%), belonging to lower wealth groups (58.1%), residing in rural areas (57.4%), and having home births (64.1%). Results confirmed the primary hypothesis that institutional delivery significantly and negatively affects delayed breastfeeding initiation (odds ratio [OR] 0.705, 95% CI 0.676-0.735, <i>P</i><.001). Age as a moderating variable significantly affected this association (adjusted OR [aOR] 0.757, 95% CI 0.696-1.307, <i>P</i>=.02 for the 15-25 age group). Notably, education level (aOR 0.616, 95% CI 0.429-1.930, <i>P</i>=.005 for no education and aOR 0.510, 95% CI 0.429-1.772, <i>P=</i>.04 for primary education) and poor wealth index (aOR 0.672, 95% CI 0.528-1.432, <i>P</i>=.004) as moderating factors significantly strengthened the negative effect of institutional delivery on delayed initiation. Poor mothers and those without education or a lower level of education (primary) when delivering the child at the health institution further reduced the chances of witnessing delayed initiation. CONCLUSIONS Institutional delivery significantly lowers the likelihood of delayed breastfeeding initiation, and this negative effect is significantly strengthened when uneducated women or lesser-educated women and those with lower wealth deliver their children at the institutional facilities, underscoring the significance of these moderating factors. Developing strategies targeting these socioeconomic moderating factors is crucial. Tailored awareness programs crafted to address the needs of uneducated mothers from economically disadvantaged backgrounds can enhance coverage. Outreach initiatives aimed at promoting health care service use during pregnancy and delivery, as well as raising awareness about breastfeeding practices, are warranted for the adoption and implementation of early breastfeeding initiation.