Introduction Birth registration is a critical component of civil registration and vital statistics (CRVS) systems and a key enabler of Sustainable Development Goal 16.9, which seeks legal identity for all. Despite national and global commitments, coverage remains low in many parts of Nigeria, particularly at the subnational level. This study investigates compliance levels and regional variations in birth registration during the June 2025 Maternal, Newborn, and Child Health (MNCH) Week in Bayelsa State, Nigeria.

Methodology A comparative cross-sectional design was used to analyze LGA-level data extracted from the June 2025 MNCH Week OPS Room final PowerPoint report. Supplementary evidence from peer-reviewed publications and CRVS policy documents was included using predefined inclusion criteria. The analysis applied descriptive statistics, proportional calculations, and compliance-tier classification. Southern Ijaw LGA was purposively examined due to reporting failure. Ethical considerations were addressed through the exclusive use of publicly available, de-identified secondary data.

Results Out of the eight LGAs evaluated, only seven submitted birth registration data, totaling 1,236 registered births. Yenagoa and Ogbia LGAs accounted for over 50% of the total, while Brass and KOLGA reported the lowest numbers. Southern Ijaw LGA submitted no data, citing operational delays and access challenges. Compliance tiers ranged from high (≥250 registrations) to non-reporting. Systemic gaps identified included late campaign commencement, weak supervision, and lack of real-time data validation.

Conclusion Birth registration coverage across LGAs in Bayelsa State remains uneven, with systemic bottlenecks undermining CRVS outcomes during MNCH campaigns. The absence of data from Southern Ijaw LGA highlights the urgent need for targeted reforms. Recommendations include early logistics deployment, improved STF training, enhanced community sensitization, and integration of digital CRVS solutions.

The authors have declared no competing interest.

This study did not receive any funding

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The study received ethical approval from: Bayelsa State Primary Health Care Board Research Ethics Committee (BSPHCBREC)Bayelsa State Primary Health Care Board, Yenagoa, Nigeria. Decision made: The BSPHCBREC granted full ethical approval (Approval No; Ref: BSPHCB/ERC/2025/112) for this study on 2nd of June 2025, waiving the need for individual participant consent as the research involved secondary analysis of anonymized programmatic data from the Maternal and Child Health Week (MCHW) OPS Room Report.

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