Cardiology · Laboratory Medicine
Martin-Hopkins LDL-C Equation calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Allowed range: 50–500 mg/dL
Allowed range: 5–150 mg/dL
Allowed range: 7–13975 mg/dL
Result
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Clinical inputs
- Total cholesterol (mg/dL)Accepted range: 50 to 500
- HDL cholesterol (mg/dL)Accepted range: 5 to 150
- Triglycerides (mg/dL)Accepted range: 7 to 13975
Primary source
Martin SS, Blaha MJ, Elshazly MB, et al. Comparison of a novel method vs the Friedewald equation for estimating low-density lipoprotein cholesterol levels from the standard lipid profile. JAMA. 2013;310(19):2061-2068. DOI: 10.1001/jama.2013.280532. PMID: 24240933. Scope: LDL-C = non-HDL-C − TG / adjustable factor, where the factor is the median TG:VLDL-C ratio from the 180-cell table (30 triglyceride strata from 7–49 to 400–13975 mg/dL × 6 non-HDL-C strata <100, 100–129, 130–159, 160–189, 190–219, ≥220 mg/dL); e.g. TG 7–49 row 3.5/3.4/3.3/3.3/3.2/3.1 and TG 400–13975 row 11.9/10.0/8.8/8.1/7.5/6.7 (table cross-checked against a published reproduction). Lipids in mg/dL (cholesterol mmol/L × 38.67, TG mmol/L × 88.57). Result categories follow NCEP ATP III LDL-C classification (JAMA 2001;285:2486-2497): <100 optimal, 100–129 near optimal, 130–159 borderline high, 160–189 high, ≥190 mg/dL very high. (2013)
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