Methodology
Methodology
How every clinical claim on this site gets verified, how the Guideline Tracker is built, and how both are kept current. This describes what the site actually does, not an aspiration.
Every claim is verified against its cited authority
Every clinical claim, whether it is a screening recommendation, a statement about a lifestyle lever, a fact about a condition, or a verdict on a popular health claim, is checked directly against the primary source that states it: the U.S. Preventive Services Task Force (USPSTF), the CDC and its Advisory Committee on Immunization Practices (ACIP), the NIH and its institutes (including the NIA, NHLBI, and NIDDK), the FDA, Cochrane, or the underlying peer-reviewed trial. Each page carries a last_verified date: the day someone actually re-checked that page's claims against the current source, not the day the page was first published.
Where a source cannot be verified at write time, we do not publish the claim padded out with hedging language. The page is gated, meaning the claim is left out or the page is held back, rather than shipped on a guess.
The Guideline Tracker
The Guideline Tracker is built by hand, one row at a time, from the current published recommendations of the USPSTF, the CDC, and ACIP. Every row states the service, who it applies to, the age band, the recommending authority, the USPSTF grade where one applies, the date that guideline was last updated by its authority, and a direct link to the source page. Nothing in the tracker is inferred, extrapolated, or averaged across sources; each row is a transcription of what one authority currently states.
The tracker currently reflects 17 recommendations, with the newest guideline update dated November 4, 2025.
Facts last verified against official sources: 2025-11-04
Refresh cadence
Guideline pages are checked on a quarterly cycle: every three months, someone re-reads the current USPSTF, CDC, or ACIP page behind each claim and confirms it still matches what is published. The Guideline Tracker itself is rebuilt whenever one of its underlying authorities updates a recommendation, rather than waiting for the next scheduled quarterly check, since a changed screening age or a new grade is the kind of update readers need to see as soon as it is confirmed.
What this does not claim
This site does not run its own clinical studies, does not employ a research staff, and does not claim real-time monitoring of every guideline body in the country. It reads and cites the same public guidelines your clinician can read, and states plainly which authority said what and when. See how we review for how evidence strength and USPSTF grades are explained, and editorial policy for the sourcing rules that govern every page.
Corrections
If a claim does not match its cited source, or a guideline has changed since our last check, use the contact form. See editorial policy for how corrections are handled.