Creates a column `methadone_present` if opioid death involved methadone

This function flags all opioid deaths that involved methadone.

Usage

flag_methadone_present(
  processed_df,
  year = NULL,
  keep_cols = FALSE,
  opioid_deaths_only = TRUE
)

Arguments

processed_df

MCOD dataframe already processed

year

if NULL, will attempt to detect

keep_cols

keep intermediate columns

opioid_deaths_only

if `TRUE` (default) the flag fires only on opioid deaths (`opioid_death == 1`); if `FALSE`, it fires wherever the methadone code appears (including contributory-only records) and the caller is expected to `filter(opioid_death == 1)` themselves.

Value

a new dataframe with 1 additional column

Examples

df <- data.frame(year = 2019, ucod = "X42", f_records_all = "T403")
df |>
    flag_opioid_deaths(year = 2019) |>
    flag_methadone_present(year = 2019)
#>   year ucod f_records_all opioid_death methadone_present
#> 1 2019  X42          T403            1                 1