Create a duration sum feature specification

Sums end_date - start_date (in days) for each person across all records in tables that have start/end date columns.

Usage

omop.feature.duration_sum(concept_set, name = NULL)

Arguments

concept_set

Numeric vector of concept IDs.

name

Character; optional custom column name.

Value

An omop_feature_spec with type = "duration_sum".