Serum Folate
Females, Age 70+
The median serum folate for females aged 70+ in the US population is 22.6 ng/mL, with 90% of this group falling between 7.7 and 53.9 ng/mL.
NHANES 2017-March 2020 Pre-Pandemic 2017-2020 · Sample size: 335 participants · Unit: ng/mL
Percentile Distribution
Unit:
| Percentile | P5 | P25 | P50 | P75 | P95 |
|---|---|---|---|---|---|
| Value (ng/mL) | 7.7 | 14.0 | 22.6 | 35.9 | 53.9 |
7.7 14.0 22.6 35.9 53.9
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
- 335 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)