Public record

ALT (alanine aminotransferase): the public record

1 table from US federal sources. Latest data date: 2023.

Each table is computed from the named federal dataset as of its data date; the method is under each one.

Population data

How ALT (alanine aminotransferase) is distributed in US adults

In the 2021 to 2023 US national health survey, the median ALT (alanine aminotransferase) was 22.0 IU/L in men aged 20 to 39 and 13.0 IU/L in women aged 20 to 39. Half of people in each group fall below the median; the row notes give the range covering the middle 90%.

How ALT (alanine aminotransferase) is distributed in US adults: the figures
Measure	Value	Note
Men 20 to 39, median	22.0 IU/L	middle 90% of people: 11.0 to 65.0; 591 people tested
Men 40 to 59, median	25.0 IU/L	middle 90% of people: 12.0 to 56.0; 699 people tested
Men 60 and over, median	19.0 IU/L	middle 90% of people: 10.0 to 40.8; 1,164 people tested
Women 20 to 39, median	13.0 IU/L	middle 90% of people: 7.0 to 38.0; 777 people tested
Women 40 to 59, median	16.0 IU/L	middle 90% of people: 8.0 to 41.0; 879 people tested
Women 60 and over, median	16.0 IU/L	middle 90% of people: 8.2 to 36.0; 1,328 people tested

Source: CDC National Center for Health Statistics, NHANES August 2021 to August 2023, data as of 2023

How this was calculated

Computed survey-weighted 5th, 50th and 95th percentiles from the CDC public file by sex and age band, using the sample weight WTPH2YR. Groups with fewer than 50 people are left out.

Scope: US adults aged 20 and over who gave a sample in NHANES 2021 to 2023, CDC variable LBXSATSI (Alanine Aminotransferase (ALT) (IU/L))

These are population distributions, not clinical reference ranges or treatment targets. They include people with and without health conditions and people on medication. Laboratories differ in method and units.

Download the data (CSV)

ALT (alanine aminotransferase): the public record

How ALT (alanine aminotransferase) is distributed in US adults

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