Calculated Serum Osmolality
Females, Age 30-39
The median calculated serum osmolality for US females aged 30-39 is 279 mmol/kg, with 90% of the population falling between 270 and 287 mmol/kg.
NHANES 2017-March 2020 Pre-Pandemic 2017-2020 · Sample size: 677 participants · Unit: mmol/kg
Percentile Distribution
| Percentile | P5 | P25 | P50 | P75 | P95 |
|---|---|---|---|---|---|
| Value (mmol/kg) | 270 | 276 | 279 | 282 | 287 |
270 276 279 282 287
P5 P25 P50 P75 P95
Data and Methodology
- Dataset
- NHANES 2017-March 2020 Pre-Pandemic ( NHANES 2017–2020 2020 , Survey-weighted percentiles from the full MEC sample)
- Survey years
- 2017-2020
- Sample size
- 677 participants
- Reference population
- US civilian non-institutionalized females aged 30-39 from NHANES 2017-March 2020. Includes the full population (not restricted to healthy individuals) to reflect the population distribution.
- Exclusion criteria
-
- Missing calculated serum osmolality value (LBXSOSSI)
- Missing or zero combined pre-pandemic MEC sample weight (WTMECPRP)
- Age outside 30-39 range
- Notes
- Percentiles computed using the combined pre-pandemic MEC weight (WTMECPRP). Calculated serum osmolality reported as LBXSOSSI in mmol/kg using the NHANES formula (1.86 x sodium) + (glucose / 18) + (BUN / 2.8) + 9; it was not measured with an osmometer.