Related Experiment Videos
Construction and Application of A Quality Control Indicator System for the Sentinel Surveillance Project for Major
Zhiwei Xia1, Xin Xin2, Jingjing Pan2
1Institute for School Health, Beijing Center for Disease Control and Prevention, Beijing, China.
What Is Already Known About This Topic?:
The National Health Commission established a sentinel surveillance project for major nutrition and chronic disease issues in 2022, with a four-tiered full-process quality control (QC) system, monitoring Healthy China Action 2030 indicators.
What Is Added By This Report?:
A 68-indicator QC system was developed through two Delphi expert consultation rounds. Application across 38 surveillance sites (2023-2025) showed 95.67% (2,472/2,584) overall compliance. Physical measurement was the weakest dimension. Regional disparities narrowed after targeted interventions.
What Are The Implications For Public Health Practice?:
This system identifies surveillance weaknesses, guides targeted improvements, and provides a replicable reference for QC in other population-based surveillance programs.
