Skip to content

Preoperative aPTT

Preoperative aPTT (clinical table).

Name in the dataset preop_aptt
Type clinical
Stored in clinical_data.csv
Unit sec

Description

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

Measurement space

-0.0500.05true minus recorded (sec)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 sec, nearest
Native step 0.1 sec
Anchor nearest (convention)

In this release

How wide the true-value distribution is, record by record, over 5,984 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 sec 0.0289 to 0.0289 sec
95% interval width 0.095 sec 0.095 to 0.095 sec
Mean minus recorded 0 sec 0 to 0 sec

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_aptt.
Recorded values in the release: 5,986 records, median 32.1 sec; 60 outside the 0.5–99.5th percentiles are not shown.

Tags: generated, vitaldb-resolution