Calculate age of diagnosis, age at end of follow up, and status

Usage

get_onset_time(
  tbl,
  start,
  end,
  event,
  status_col = "status",
  aod_col = "aod",
  age_eof_col = "age"
)

tbl: tibble with start, end, and event as columns
start: start of follow up, typically birth date, must be a date column
end: end of follow up, must be a date column
event: event of interest, typically date of diagnosis, must be a date column
status_col: column name of status column to be created. Defaults to "status".
aod_col: column name of age of diagnosis column to be created. Defaults to "aod".
age_eof_col: column name of age at end of follow-up column to be created. Defaults to "age_eof".

tibble with added status, age of diagnosis, and age at end of follow-up

# See vignettes.