Castelli Risk Index I & II (TC/HDL, LDL/HDL)
Castelli Risk Index I & II (TC/HDL, LDL/HDL) - a deterministic tool in Sophie Well's Clinical Math & Conversions group.
Open the Castelli Risk Index I & II (TC/HDL, LDL/HDL) → Runs in your browser. No signup, no tracking.
What this is
Castelli Risk Index I & II (TC/HDL, LDL/HDL) is one of 230 deterministic tools in Sophie Well's Clinical Math & Conversions group. Castelli Risk Index I & II (TC/HDL, LDL/HDL) - a deterministic tool in Sophie Well's Clinical Math & Conversions group.
When to use it
Use this tool when you need a quick, citable reference. Every calculation runs entirely in your browser - no inputs leave your device, no account is required, no AI is involved. The site enforces a strict Content Security Policy and ships no analytics or third-party CDN.
References
Castelli WP, Abbott RD, McNamara PM. Summary estimates of cholesterol used to predict coronary heart disease. Circulation. 1983;67(4):730-734. Risk Index-I = total cholesterol / HDL-C; Risk Index-II = LDL-C / HDL-C. Read the source ↗
Worked example: Castelli Risk Index-I 4 (TC/HDL), Risk Index-II 2.6 (LDL/HDL) — higher ratios mark a more atherogenic profile; interpretation is context-dependent.
Sophie Well is a reference and educational tool. Not medical, legal, or financial advice. Does not replace clinician judgment, professional billing review, or legal counsel.