2023-07-16-世界卫生组织-Immunization_Saudi_Arabia_2023_country_profile_17页_348kb

报告摘要

Date and Purpose: The estimates, released July 1, 2023, cover immunization coverage for various vaccines in Saudi Arabia, based on data received by June 26, 2023. The next revision is planned for July 15, 2024.
Key Vaccines and Coverage: For the period 2011-2022, coverage was generally high, ranging from 95% to 99% for vaccines such as BCG, DTP1, DTP3, Pol3, IPV1, MCV1, MCV2, and HepB3. Notable exceptions include BCG coverage dropping to 52% in 2019 due to policy changes, and HIB3/PCV3 coverage around 95-98%.
Methodology and Confidence: Estimates rely on reported data, surveys (e.g., KSAWHS surveys for HepB3 and other vaccines), and independent denominator calculations. Confidence grades (GoC) were assigned, noting data quality issues in some years, particularly when survey sample sizes were low (<300) or data sources challenged the estimates with D- grade indicating possible bias.
Variations and Challenges: Coverage faced interruptions such as stockouts (e.g., 2019-2020), shifts in data sources (e.g., from forecasted to electronic registration), and interpolation in cases of missing data. All estimates carry risks due to varying data quality and should be assessed with caution for specific objectives.
Overall Trend: Immunization coverage has been consistently high, reflecting national routine immunization efforts, though careful verification is recommended due to potential biases in data sources.