Serum Folate
Females, Age 40-49
The median serum folate for females aged 40-49 in the US population is 14.4 ng/mL, with 90% of this group falling between 5.6 and 37.2 ng/mL.
NHANES 2017-March 2020 Pre-Pandemic 2017-2020 · Sample size: 645 participants · Unit: ng/mL
Percentile Distribution
Unit:
| Percentile | P5 | P25 | P50 | P75 | P95 |
|---|---|---|---|---|---|
| Value (ng/mL) | 5.6 | 9.8 | 14.4 | 22.3 | 37.2 |
5.6 9.8 14.4 22.3 37.2
P5 P25 P50 P75 P95
Data and Methodology
- Dataset
- NHANES 2017-March 2020 Pre-Pandemic ( NHANES 2017–2020 2020 , Survey-weighted percentiles from NHANES 2017-March 2020 pre-pandemic combined cycles using the published folate subsample weight WTFOLPRP applied directly with no division.)
- Survey years
- 2017-2020
- Sample size
- 645 participants
- Reference population
- US adults aged 20+, excluding pregnant participants
- Exclusion criteria
-
- Age under 20
- Pregnant at time of exam (RIDEXPRG == 1)
- Missing analyte value
- Missing or zero pre-pandemic folate sample weight (WTFOLPRP)