2022-07-05-世界卫生组织-Immunization_New_Zealand_2022_country_profile_16页_347kb

Summary of WHO and UNICEF Immunization Coverage Estimates for New Zealand (2021 Revision)

• Report Overview: The World Health Organization (WHO) and UNICEF provided estimates of national immunization coverage for New Zealand based on their 2021 revision. Data was available from 2010 to 2021 and is available online at https://data.unicef.org/topic/child-health/immunization/ and https://immunizationdata.who.int/listing.html.

• Data Source: Estimates are primarily based on coverage reported by the New Zealand government, derived from a national immunization registry. No nationally representative independent assessments were conducted within the last five years, relying solely on reported data for most vaccines. This includes monitoring survey-based evidence and administrative data, with no verified independent empirical assessments recommended to confirm levels.

• Coverage Levels:

  • For DTP (diphtheria, tetanus, and pertussis vaccine) and Pol3 (third dose of poliovirus vaccine), coverage values ranged from approximately 90% to 95%, showing stability with minor fluctuations in certain years, possibly due to data reporting variations.
  • Other vaccines like BCG (3 doses, used for tuberculosis), HepB (第一剂례), MCV1 and MCV2 (measles-containing vaccines), RCV1 (rubella-containing vaccine), HepB3, Hib3 (Haemophilus influenzae type b vaccine), Rotavirus, and PCV3 showed consistent coverage between 90% and 95%, with Rotavirus introduced later in 2014 with coverage starting from 2016 and increasing over time.
  • For some vaccines, data from 2010 to 2012 was not available or marked as NA, and estimates were based purely on national reports with a grade of confidence indicating they were well-supported but carried some risk of being inaccurate.

• Confidence and Quality Assessment: A grade of confidence (GoC) is provided for each estimate, generally at the R+ level, which indicates moderate confidence: supported by reported data, recalculated with an independent denominator from UN sources, and no challenging surveys. However, data quality varies due to potential biases in empirical sources or inaccuracies in numerator/denominator data, and no probability models or certainty ranges were presented. UNICEF and WHO note that estimates should be used with caution as they are not a judgment on the quality of national data but reflect empirical support.

• Disclaimer: The estimates are subject to caution due to varying data quality and potential misrepresentation of true coverage levels. There is the possibility of errors, especially where data are not independently verified. No liability is claimed for damages arising from the use of these estimates.