get_attrition: Generate cohort attrition table

In visR: Clinical Graphs and Tables Adhering to Graphical Principles

Generate cohort attrition table

Description

This is an experimental function that may be developed over time.

This function calculates the subjects counts excluded and included for each step of the cohort selection process.

Usage

get_attrition(data, criteria_descriptions, criteria_conditions,
subject_column_name)

Arguments

data	Dataframe. It is used as the input data to count the subjects that meets the criteria of interest
criteria_descriptions	character It contains the descriptions of the inclusion/exclusion criteria. Each element of the vector corresponds to the description of each criterion.
criteria_conditions	character It contains the corresponding conditions of the criteria. These conditions will be used in the table to compute the counts of the subjects.
subject_column_name	character The column name of the table that contains the subject id.

Details

criteria_descriptions and criteria_conditions need to be of same length

Value

The counts and percentages of the remaining and excluded subjects for each step of the cohort selection in a table format.

Examples

visR::get_attrition(adtte,
  criteria_descriptions =
    c(
      "1. Placebo Group", "2. Be 75 years of age or older.",
      "3. White", "4. Site 709"
    ),
  criteria_conditions = c(
    "TRTP=='Placebo'", "AGE>=75",
    "RACE=='WHITE'", "SITEID==709"
  ),
  subject_column_name = "USUBJID"
)

visR documentation built on May 29, 2024, 11:50 a.m.