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Prothrombin time (INR)

Prothrombin time (INR) (lab table).

Name in the dataset ptinr
Type lab
Stored in lab_data.csv
Stamped by Hospital records clock
Unit INR

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

-0.00500.005true minus recorded (INR)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 0.01 INR, nearest
Native step 0.01 INR
Anchor nearest (convention)

In this release

How wide the true-value distribution is, record by record, over 1,985 of 1,985 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 INR 0.00289 to 0.00289 INR
95% interval width 0.0095 INR 0.0095 to 0.0095 INR
Mean minus recorded 0 INR 0 to 0 INR

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 ptinr.
Recorded values in the release: 21,156 records, median 1.11 INR; 180 outside the 0.5–99.5th percentiles are not shown.

Tags: generated, vitaldb-resolution