Creatinine¶
Creatinine (lab table).
| Name in the dataset | cr |
| Type | lab |
| Stored in | lab_data.csv |
| Stamped by | Hospital records clock |
| Unit | mg/dL |
Description¶
Single resolution; last digit flat.
Its time is the lab system's result time: see Blood gas result time and Central lab result time.
Measurement space¶
A vertical slice through the measurement space: how the true value is spread around any one recorded value. Its shape is uniform.
Time¶
Its time side is still to be described.
Value¶
| Model kind | uniform: single resolution; uniform over the rounding interval |
| Resolution | 0.01 mg/dL, nearest |
| Native step | 0.01 mg/dL |
| Anchor | nearest (convention) |
In this release¶
How wide the true-value distribution is, record by record, over 3,683 of 3,683 records (every lab row of 600 random cases) that have one. Computed with the pinned model, aggregates only.
| Median | p10 to p90 | |
|---|---|---|
| Standard deviation | 0.00289 mg/dL | 0.00289 to 0.00289 mg/dL |
| 95% interval width | 0.0095 mg/dL | 0.0095 to 0.0095 mg/dL |
| Mean minus recorded | 0 mg/dL | 0 to 0 mg/dL |
Anchor¶
Laboratory results rounded to the last reported digit; at most half the last digit. See what an anchor is and every variable's anchor.
Worked examples¶
| Example | Side | Status | Summary |
|---|---|---|---|
| A regression that carries rounding uncertainty through | value | draft | Acute kidney injury after surgery against intraoperative urine output (mL/kg/h), fitted once on the recorded numbers and once per draw from the true-value distributions: the rounding moves 14% of cases across the oliguria threshold, but widens the confidence interval of the cohort's regression by at most 4%. |
Figures¶
Tags: generated, vitaldb-resolution