Vitamin B12
Females, Age 50-59
The median vitamin B12 for females aged 50-59 in the US population is 544 pg/mL, with 90% of this group falling between 240 and 1531 pg/mL.
NHANES 2013-2014 2013-2014 · Sample size: 452 participants · Unit: pg/mL
Percentile Distribution
Unit:
| Percentile | P5 | P25 | P50 | P75 | P95 |
|---|---|---|---|---|---|
| Value (pg/mL) | 240 | 403 | 544 | 769 | 1531 |
240 403 544 769 1531
P5 P25 P50 P75 P95
Data and Methodology
- Dataset
- NHANES 2013-2014 ( NHANES 2013-2014 2013 , Survey-weighted percentiles from NHANES 2013-2014 single cycle. Sample weight WTMEC2YR is applied directly with no division because data are not pooled across cycles.)
- Survey years
- 2013-2014
- Sample size
- 452 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 MEC two-year sample weight (WTMEC2YR)