Question 1

Is DoctorWithData free?

Accepted Answer

Yes — every tool is free and runs entirely in your browser. There is no signup, no upload, and no PHI ever leaves your device.

Question 2

Which scales do you host?

Accepted Answer

32 validated scales across cardiology, neurology, pulmonology, GI, geriatrics, psychiatry, and ICU/ED — including CHA2DS2-VASc, HAS-BLED, HEART, Wells, GCS, MELD-Na, qSOFA, NEWS2, PHQ-9, GAD-7, NIHSS Lite, Barthel, Katz ADL, Glasgow-Blatchford, and more. Each scale shows its formula, citation, and algorithm version.

Question 3

What systematic-review tools are included?

Accepted Answer

PRISMA 2020 flow diagram generator, Cochrane RoB 2 traffic-light and weighted summary plots, PICO to PubMed/Embase/Scopus/Cochrane search-string builder, RIS/BibTeX deduplicator with DOI/PMID/fuzzy-title matching, title/abstract screening with keyboard shortcuts and Cohen's κ for dual-reviewer agreement.

Question 4

Can I run a meta-analysis with this site?

Accepted Answer

Yes — pool effect sizes (OR, RR, MD, SMD/Hedges' g) with inverse-variance fixed-effect or DerSimonian-Laird random-effects models. The tool produces a downloadable forest plot, funnel plot, prediction interval, Egger's regression test, and Duval-Tweedie trim-and-fill.

Question 5

Why are some scales not hosted directly?

Accepted Answer

Restricted scales (e.g., BDI-II, SF-36, MoCA) require a license fee or registration. We do not host their items or scoring; instead, a reroute card links to the official source and points to a free alternative we do host (e.g., PHQ-9 instead of BDI-II, RAND-36 instead of SF-36, SLUMS instead of MoCA).

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