Add an event variable to a USRDS cohort — add_cohort

This function accepts two data frames. One is a USRDS longitudinal cohort. The second is a data frame with dates representing an event. The resulting output is a USRDS longitudinal cohort with the events added to the data frame

Usage

add_cohort_event(
  USRDS_cohort,
  event_data_frame,
  event_date,
  event_variable_name
)

Arguments

USRDS_cohort: is a USRDS cohort created using the create_usrds_cohort() function
event_data_frame: is a data frame with a date variable (delineated via the event_date option).
event_date: is a character string naming a date variable in event_data_frame that specifies when each patient experiences the event
event_variable_name: is a string with the variable name for the new event variable created

Value

A data frame with columns cohort_start_date and cohort_end_date for each row

Examples

if (FALSE) {
}