Assessing Postnatal Immunisation Services in a Low-Resource Setting: A Cross-Sectional Survey.

Postnatal immunisation is critical for maternal and child health, particularly in low-income countries. Despite international efforts, maternal awareness and access to care remain limited. Understanding the drivers behind postnatal immunisation services is critical for improving neonatal and maternal healthcare interventions. A tertiary healthcare facility's postpartum mothers who were seeking immunisation services participated in a prospective cross-sectional electronic survey. Convenience sampling was used to select respondents, who then answered a structured electronic questionnaire intended to obtain information on immunisation practices. To evaluate important trends and correlations, data was analysed using both descriptive and inferential statistics. A factor analysis was performed using the principal component analysis method, eigenvalue criteria, communalities, and confirmatory factor analysis. The study adhered to the STROBE guidelines. We found that postnatal mothers' good immunisation practices were influenced by their adherence to immunisation schedules (% variance: 56.407; Eigenvalue: 7.33), and significant satisfaction with communication (% variance: 8.338; Eigenvalue: 1.084); giving a cumulative variance explained of 64.745% of the total variance of variables under study. However, suboptimal practices include limited resource availability, poor record maintenance, insufficient support for side effects, a lack of support from healthcare providers, and a decline in immunisation recommendations, all of which had Eigenvalue <1 and insignificant percentage of variance contribution to the total variance explained. We developed a two-factor model of postnatal immunisation practices, focusing on adherence and effective communication. The model showed high loadings and adequate fit indices (χ(34) = 91.333, < 0.001; CFI = 0.945; TLI = 0.927; RMSEA = 0.071; SRMR = 0.042), good evidence of internal consistency ( = 0.823-0.877), and composite reliability ( = 0.832-0.877). The study recommends a comprehensive approach to increasing newborn vaccine coverage, which includes health education, improved service delivery, and culturally sensitive communication strategies. Future research should focus on digital health interventions, community-based initiatives, and policy-driven postnatal care.