Clarity.PregnancyTask

Description

This is a custom task for estimating pregnancy-related dates from pregnancy duration statements in clinical text. For example, the phrase 30 y/o 24wks pregnant in a clinical report dated July 1, 2019 implies that conception occured 24 weeks prior, on approximately Jan. 14th. For a normal 40 week pregnancy, the estimated delivery date would be 40 - 24 == 16 weeks into the future, or sometime around Oct. 21. The complete set of pregnancy-related dates and times is listed below.

The relevant dates can be computed from a wide variety of duration statements. Some examples:

approx. 28 weeks pregnant
she is 2.5 months pregnant
pregnant at 26wks
approx. 10-12 weeks pregnant
patient is a 23 year G4P2 @ 27
patient is a 29 yo G1 @ 5.3wks
37 year old woman at 29 weeks
etc.

Example

define final PregnancyFunction:
    Clarity.PregnancyTask({
        documentset: [Docs]
    });

Extends

BaseTask

Arguments

Name	Type	Required	Notes
termset	termset	No	Termsets are not used by this task.
documentset	documentset	No
cohort	cohort	No

Results

Name	Type	Notes
sentence	str
start	int
end	int
weeks_pregnant	int or float
weeks_remaining	int or float
trimester	int	1 if <=13 wks; 2 if [14, 26] wks; 3 otherwise
date_conception	str	YYYY-MM-DD format
date_delivery	str	YYYY-MM-DD format

Collector

No