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Glomerular filtration rate

Glomerular filtration rate (lab table).

Name in the dataset gfr
Type lab
Stored in lab_data.csv
Stamped by Hospital records clock
Unit mL/min/1.73 m2

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

-0.0500.05true minus recorded (mL/min/1.73 m2)density

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 0.1 mL/min/1.73 m2, nearest
Native step 0.1 mL/min/1.73 m2
Anchor nearest (convention)

In this release

How wide the true-value distribution is, record by record, over 3,646 of 3,646 records (every lab row of 600 random cases) that have one. Computed with the pinned model, aggregates only.

Median p10 to p90
Standard deviation 0.0289 mL/min/1.73 m2 0.0289 to 0.0289 mL/min/1.73 m2
95% interval width 0.095 mL/min/1.73 m2 0.095 to 0.095 mL/min/1.73 m2
Mean minus recorded 0 mL/min/1.73 m2 0 to 0 mL/min/1.73 m2

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.

Figures

Histogram of the recorded values of gfr.
Recorded values in the release: 36,683 records, median 92.3 mL/min/1.73 m2; 358 outside the 0.5–99.5th percentiles are not shown.

Tags: generated, vitaldb-resolution