LabNorms Population Percentiles

Total Triiodothyronine (T3)

Females, Age 20-29

The median total T3 for females aged 20-29 in the US population is 116.7 ng/dL, with 90% of this group falling between 90.7 and 170.5 ng/dL.

NHANES 2009-2012 Thyroid Profile (Subsample A) 2009-2012 · Sample size: 280 participants · Unit: ng/dL

Percentile Distribution

Percentile P5P25P50P75P95
Value (ng/dL) 90.7 106 116.7 134 170.5
90.7 106 116.7 134 170.5
P5 P25 P50 P75 P95

Data and Methodology

Dataset
NHANES 2009-2012 Thyroid Profile (Subsample A) ( NHANES 2009–2012 Thyroid 2009 , Survey-weighted percentiles from NHANES 2009-2012 Thyroid Profile Subsample A)
Survey years
2009-2012
Sample size
280 participants
Reference population
US adults aged 20+, excluding pregnant participants, those with self-reported thyroid disease, and current thyroid medication users
Exclusion criteria
  • Age under 20
  • Pregnant at time of exam (RIDEXPRG == 1)
  • Self-reported thyroid disease (MCQ160M == 1)
  • Current thyroid medication use (RXDDRUG match against thyroid_drug_list.txt)
  • Missing analyte value
  • Missing or zero subsample weight (WTSA2YR)

Other Demographic Groups