Vitamin B12
Females, Age 70+
The median vitamin B12 for females aged 70+ in the US population is 589 pg/mL, with 90% of this group falling between 228 and 1855 pg/mL.
NHANES 2013-2014 2013-2014 · Sample size: 434 participants · Unit: pg/mL
Percentile Distribution
Unit:
| Percentile | P5 | P10 | P25 | P50 | P75 | P90 | P95 |
|---|---|---|---|---|---|---|---|
| Value (pg/mL) | 228 | 280 | 395 | 589 | 884 | 1276 | 1855 |
| Percentile | Value (pg/mL) |
|---|---|
| P5 | 228 |
| P10 | 280 |
| P25 | 395 |
| P50 | 589 |
| P75 | 884 |
| P90 | 1276 |
| P95 | 1855 |
228 395 589 884 1855
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
- 434 participants
- Reference population
- US females aged 70+, 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)