Main protein component of HDL. Reflects HDL function rather than just concentration. Better predictor of cardiovascular risk than HDL-C alone.
| Sex | Age | Range | Notes |
|---|---|---|---|
| Female | ≥ 18 yrs | 1.15 – 2.15 | Adult female |
| Male | ≥ 18 yrs | 1 – 1.75 | Adult male |
⚠ Clinical Note
Reference ranges are indicative. Always interpret results in the context of the individual patient and local laboratory reference intervals, which may vary.