Vitamin B12
Males, Age 40-49
The median vitamin B12 for males aged 40-49 in the US population is 490 pg/mL, with 90% of this group falling between 255 and 937 pg/mL.
NHANES 2013-2014 2013-2014 · Sample size: 439 participants · Unit: pg/mL
Percentile Distribution
Unit:
| Percentile | P5 | P25 | P50 | P75 | P95 |
|---|---|---|---|---|---|
| Value (pg/mL) | 255 | 390 | 490 | 607 | 937 |
255 390 490 607 937
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
- 439 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)