Concurrent evaluation of immunization programme by Lot Quality Assurance Sampling

Area of Science:

• Public Health
• Health Management
• Epidemiology

Background:

• Current Expanded Program on Immunization (EPI) methodology offers broad immunization coverage insights but lacks granular detail for local health managers.
• Effective local-level performance data is crucial for enhancing overall immunization rates and program efficiency.
• Small health units with poor performance are often overlooked by traditional EPI methods.

Purpose of the Study:

• To assess the feasibility and utility of Lot Quality Assurance Sampling (LQAS) for identifying local-level immunization performance gaps.
• To determine if LQAS can pinpoint specific sub-centers with suboptimal immunization coverage.
• To evaluate LQAS as a supplementary tool for routine health program monitoring.

Main Methods:

• Lot Quality Assurance Sampling (LQAS) methodology was implemented in nine sub-centers within the Saharanpur district.
• Data collection focused on assessing immunization coverage at a small area basis.
• The performance of LQAS in identifying underperforming units was analyzed.

Main Results:

• The LQAS methodology proved feasible for use in field conditions.
• LQAS successfully identified seven out of nine sub-centers exhibiting poor immunization performance.
• The study highlighted LQAS's capability to pinpoint specific areas needing intervention.

Conclusions:

• Lot Quality Assurance Sampling (LQAS) is a valuable tool for the routine monitoring and evaluation of health programs at a small area level.
• While not a replacement for the current EPI methodology in large areas, LQAS enhances local management by identifying performance deficits.
• LQAS is particularly useful for targeted interventions as overall immunization coverage rates increase.