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Preoperative base excess

Preoperative base excess (clinical table).

Name in the dataset preop_be
Type clinical
Stored in clinical_data.csv
Unit mmol/L

Description

Pre-operative copy of a lab result; behaves like the lab data.

Measurement space

-0.0500.05true minus recorded (mmol/L)density

A vertical slice through the measurement space: how the true value is spread around any one recorded value. Its shape is uniform.

Time

This variable carries no time of its own in the dataset.

Value

Model kind uniform: single resolution; uniform over the rounding interval
Resolution 0.1 mmol/L, nearest
Native step 0.1 mmol/L
Anchor nearest (convention)

In this release

How wide the true-value distribution is, record by record, over 532 of 6,388 records (all clinical rows) that have one. Computed with the pinned model, aggregates only.

Median p10 to p90
Standard deviation 0.0289 mmol/L 0.0289 to 0.0289 mmol/L
95% interval width 0.095 mmol/L 0.095 to 0.095 mmol/L
Mean minus recorded 0 mmol/L 0 to 0 mmol/L

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 preop_be.
Recorded values in the release: 532 records, median -0.1 mmol/L; 6 outside the 0.5–99.5th percentiles are not shown.

Tags: generated, vitaldb-resolution