Quality-assured blood testing

Export Indicator

Percentage of blood units that are screened for bloodborne diseases in a quality-assured manner
What it measures / Ce qui est mesuré / Qué mide / Что он измеряет

This indicator measures the extent of quality-assured screening of blood units at different levels of the health system.

Rationale / Fondement / Justificación / Обоснование
  • Unsafe blood transfusion is still a concern, especially in low- and middle-income countries where the prevalence of transfusion-transmissible infections is high and the quality and coverage of blood screening are inadequate.
  • Less than 100% screening indicates lack of or inappropriate laboratory screening and flags the risk of transmission through unsafe blood supplies.
Numerator / Numérateur / Numerador / Числитель

Number of donated blood units tested in a quality-assured manner for HIV, HBV, HCV, and syphilis

Denominator / Dénominateur / Denominador / Знаменатель

Number of donated blood units

Method of measurement / Méthode d’évaluation / Método de medición / Метод измерения

For the numerator and denominator. Programme records (for example, blood donation logs, laboratory records)

For the purpose of data collection, testing in a quality-assured manner is defined as "testing performed in a laboratory that: (1) uses documented standard operating procedures; (2) participates in an external quality assessment scheme."

Disaggregation / Ventilation / Desglose / Разбивка данных
  • Facility type
  • Location, geographical-administrative units (for example, region, district).
Further information / Informations complémentaires / Información adicional / Дополнительная информация

WHO Strategic Information Guidelines, 2020 (https://indicatorregistry.unaids.org/sites/default/files/9789240000735-eng.pdf)

Global health sector strategy on HIV, 2016-2021. Geneva: WHO; 2016 (https://www.who.int/hiv/strategy2016-2021/ghss-hiv/en/).

Global hepatitis report, 2017. Geneva: WHO; 2017 (https://www.who.int/hepatitis/publications/global-hepatitis-report2017/en/).