2023-07-16-世界卫生组织-Immunization_United_Arab_Emirates _2023_country_profile_16页_358kb

报告摘要

Immunization Coverage in the United Arab Emirates (2022 Revision)

Background

The World Health Organization (WHO) and UNICEF provide country-specific estimates of immunization coverage in the UAE, based on reported data, surveys, administrative records, and expert inputs. These estimates cover various vaccines and years from 2011 to 2022, sourced from national authorities and global databases. Each estimate includes a grade of confidence (GoC), reflecting empirical support, and identifies potential challenges like data biases or partial reporting. The data are reviewed individually for each country, without borrowing from other nations. Estimates are subject to uncertainty due to data variability and are presented without classical uncertainty measures.

Key Findings and Trends (2011-2022)

Overall Coverage: Immunization coverage in the UAE has consistently been high and stable across most vaccines, with levels typically between 90% and 100%. For example, vaccines like BCG, DTP1/3, Pol3, and IPV1 have maintained coverage above 95% in recent years.
Vaccine-Specific Insights:
- BCG: Coverage fluctuated between 86% and 99% annually, with estimates from 2015 to 2016 indicating partial reporting issues.
- DTP and Polio Vaccines: High and stable coverage (e.g., DTP3 and Pol3 remained above 95% in many years), but some periods showed anomalies likely related to COVID-19 or data inconsistencies.
- Hepatitis B and Other Vaccines: HepBB showed stable high coverage, while HepB3 and Hib3 experienced minor fluctuations, often challenged by data reliability concerns.
- Other Vaccines: Estimates for MCV1/2, RCV1, RotaC, and PcV3 generally indicated steady or slightly declining coverage in specific years, with noted inaccuracies in recent data due to potential over-reporting or partial national coverage.
Grade of Confidence: Most estimates carry a "No Accepted Empirical Data" or "Reported Data with Challenges" GoC, indicating reliance on administrative or interpolated data rather than high-quality surveys. Common challenges include partial reporting of target populations and inconsistencies that may not reflect nationwide coverage accurately.
COVID-19 Impact: Declines in some vaccines (e.g., DTP and Pol3 in 2020) are likely linked to pandemic disruptions in 2020-2021.

Methodology and Limitations

Data Sources: Estimates derive from national reports, surveys (often lacking recent national ones), and global databases. Interpolation is used for missing years.
Limitations: Data quality varies, with estimates based on potentially biased or incomplete national data. UNICEF and WHO recommend high-quality surveys for better accuracy. The estimates should be used cautiously with the original intent, as they lack formal uncertainty intervals.