Methods · World
The Concussion Metric That Matters
Per 1,000 player-hours, or it is not a rate.
Rugby Sentinel · 2026-09-08 · 6 min read
This investigation is commissioned. The question is live. The numbers are not invented while we wait for sources.
Per 1,000 player-hours, or it is not a rate.
What would count as evidence
Rugby Sentinel will not fill this page with a mood. When observations arrive they will carry unit, geography, period, source, confidence and limitations. If two sources disagree, both will remain visible.
Related Sentinel layers
Use Explore to open the methods, map and contribution desk. A commissioned title is a hypothesis about where to look, not a finding.
Evidence behind this story
Sources, datasets, confidence, methods and related Sentinel indicators. This is a trust feature, not a bibliography dumped at the end.
Sources
- Peer-reviewed rugby brain-health and concussion literature (monitor)Peer-reviewed researchDataset pending
The research monitor is a schema. Individual study cards are added only after citation-level review. Association is not treated as causation.
Methods
- Exposure-normalised concussion reporting
Default unit is suspected or confirmed concussion per 1,000 player-hours, not raw counts.