LabNorms Population Percentiles

Total Triiodothyronine (T3)

Females, Age 30-39

The median total T3 for females aged 30-39 in the US population is 115.5 ng/dL, with 90% of this group falling between 89.4 and 154.0 ng/dL.

NHANES 2009-2012 Thyroid Profile (Subsample A) 2009-2012 · Sample size: 283 participants · Unit: ng/dL

Percentile Distribution

Percentile P5P25P50P75P95
Value (ng/dL) 89.4 104 115.5 129 154
89.4 104 115.5 129 154
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
283 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