Exhibit 166 ยท Interrupted time-series study
Impact of SARS-CoV-2 vaccination on cancer trends: a nationwide interrupted time series study
The national SARS-CoV-2 vaccination rollout in South Korea was not accompanied by a detectable short-term, population-level change in cancer incidence trends over the 50 months that followed.
An interrupted time-series analysis of Korea National Health Insurance Service data for 36,024,394 people born between 1955 and 2004, from February 2011 to September 2025, with August 2021 as the intervention point. Of the population, 89.3 percent received at least one dose. No immediate level change or trend change reached significance for any of 13 cancer categories or for stomach, colorectal, lung or prostate cancer. The design does not compare vaccinated with unvaccinated individuals. The authors call for long-term monitoring.
- Source
- Y. Na, M. Radnaabaatar, Jae-hun Jung, Korea University College of Medicine; Biomarker Research
- Date
- 22 October 2026
- Quoted from
- Abstract, Conclusions
- Grade
- Peer-reviewed
- Document
- https://doi.org/10.1186/s40364-026-01027-6
- Accessed
- 2026-11-09
- Cited by
- Findings citing this exhibit