LabNorms Population Percentiles

Aspartate Aminotransferase (AST)

Males, Age 50-59

The median aspartate aminotransferase (AST) for US males aged 50-59 in the US population is 22 U/L, with 90% of the population falling between 14.8 U/L and 40 U/L.

NHANES 2017-March 2020 Pre-Pandemic 2017-2020 · Sample size: 629 participants · Unit: U/L

Percentile Distribution

Percentile P5P25P50P75P95
Value (U/L) 14.8 18 22 27 40
14.8 18 22 27 40
P5 P25 P50 P75 P95

Data and Methodology

Dataset
NHANES 2017-March 2020 Pre-Pandemic ( NHANES 2017–2020 2020 , Survey-weighted percentiles from full MEC sample)
Survey years
2017-2020
Sample size
629 participants
Reference population
US civilian non-institutionalized males aged 50-59 from NHANES 2017-March 2020. Includes the full population (not restricted to healthy individuals) to reflect the population distribution.
Exclusion criteria
  • Missing AST measurement (LBXSASSI)
  • Missing or zero MEC sample weight (WTMEC)
  • Age outside 50-59 range
Notes
Percentiles computed using the combined pre-pandemic MEC weight (WTMECPRP). AST measured as LBXSASSI in U/L.

Other Demographic Groups