2022-07-05-世界卫生组织-Immunization_Lesotho_2022_country_profile_29页_408kb

报告摘要

WHO and UNICEF provide estimates for various vaccines, including BCG, DTP, Polio, MCV, Hepatitis B, and others, based on reported data, surveys, and administrative records.

BCG: Fluctuations in reported data led to excluded or calibrated estimates; latest 2021 value was based on 2016 levels due to data issues.
DTP3: Coverage estimates were often excluded or adjusted; values ranged below 90% in many years, with reports of stockouts.
Pol3: Initialization in estimates and challenges due to administrative data problems; surveys sometimes replaced reported data.
Other vaccines: Similar patterns observed, with variables like MCV1 and RCV1 estimates based on MCV or independent sources, frequently flagged for quality issues.

Administrative recording and reporting systems are consistently criticized for poor quality, leading to data inconsistencies and fluctuations.
Stockouts (e.g., vaccine shortages) are frequently reported by programmes, affecting reliability.
Recommendations include independent coverage assessments to verify estimates due to data unreliability; grades of confidence (GoC) reflect empirical support but lack formal uncertainty measures.

Estimates combine national reports, surveys, and empirical adjustments; no underlying probability model or classical uncertainty intervals provided.
Process involves interpolation, calibration, and expert judgment to handle missing or inconsistent data.

Due to data quality issues, estimates should be used cautiously and assessed for specific uses; initiatives like vaccine introductions are noted but with coverage caveats.

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