LabNorms Population Percentiles

White Blood Cell Count (WBC)

Females, Age 20-29

The median WBC for females aged 20-29 in the US population is 7.5 (x1000 cells/uL), with 90% of the population falling between 4.6 and 11.7.

NHANES 2017-March 2020 Pre-Pandemic 2017-2020 · Sample size: 627 participants · Unit: 1000 cells/uL

Percentile Distribution

Percentile P5P25P50P75P95
Value (1000 cells/uL) 4.6 6.3 7.5 8.9 11.7
4.6 6.3 7.5 8.9 11.7
P5 P25 P50 P75 P95

Data and Methodology

Dataset
NHANES 2017-March 2020 Pre-Pandemic ( NHANES 2017–2020 2020 , Survey-weighted percentiles from pre-pandemic MEC sample)
Survey years
2017-2020
Sample size
627 participants
Reference population
US civilian non-institutionalized females aged 20-29 from NHANES 2017-March 2020. Includes the full population (not restricted to healthy individuals) to reflect the population distribution.
Exclusion criteria
  • Missing WBC measurement (LBXWBCSI)
  • Missing or zero MEC sample weight (WTMECPRP)
  • Age outside 20-29 range
Notes
Percentiles computed using survey-weighted analysis (WTMECPRP weight from the pre-pandemic combined file). WBC measured as LBXWBCSI in 1000 cells/uL.

Other Demographic Groups