Improving immunization capacity in Ethiopia through continuous quality improvement interventions: a prospective...

Area of Science:

• Public Health
• Health Systems Strengthening
• Immunization Programs

Background:

• Low-income countries require evidence for effective immunization programs and global vaccine initiatives.
• Ethiopia aimed to implement and evaluate continuous quality improvement (CQI) interventions to enhance national immunization performance.

Purpose of the Study:

• To implement and assess the effectiveness of system-wide CQI interventions for improving national immunization program performance in Ethiopia.

Main Methods:

• A prospective, quasi-experimental design with interrupted time-series analysis was used in 781 Ethiopian health sectors.
• Interventions included baseline quality assessment, system strengthening via onsite support and training in a Plan-Do-Check-Act cycle over 12 months.
• Data were analyzed using statistical process control and t-tests, measuring vaccine coverage and process indicators.

Main Results:

• Vaccination coverage for pentavalent, measles, BCG, and PCV significantly improved post-intervention.
• All seven process indicators improved to over 75%, with reduced disparities between developing and emerging regions.
• Full vaccination coverage also increased, demonstrating broad program enhancement.

Conclusions:

• CQI interventions effectively improved immunization capacity and vaccination coverage in Ethiopia.
• The approach fostered accountability and shared ownership among health sectors at all levels.
• While universal strategies are beneficial, localized interventions are crucial for optimal immunization coverage.