Country Code Lookup

These pre-defined country codes are sourced from ISO 3166 Standards. See also Wikipedia.

Usage

country_code_lookup

Format

An object of class tbl_df (inherits from tbl, data.frame) with 249 rows and 3 columns.

Details

country_code is the 3-letter ISO 3166-1 county code commonly found in the ADSL COUNTRY variable. country_name is the country long name corresponding to to the 3-letter code. country_number is the numeric code corresponding to an alphabetic sorting of the 3-letter codes.

To see the entire table in the console, run print(country_code_lookup).

See also

dose_freq_lookup

Other metadata: atoxgr_criteria_ctcv4, atoxgr_criteria_ctcv5, atoxgr_criteria_daids, dose_freq_lookup

Examples

library(tibble)
library(dplyr, warn.conflicts = FALSE)
library(lubridate)

# Create reference dataset for periods
adsl <- tribble(
  ~USUBJID, ~SEX, ~COUNTRY,
  "ST01-01", "F", "AUT",
  "ST01-02", "M", "MWI",
  "ST01-03", "F", "GBR",
  "ST01-04", "M", "CHE",
  "ST01-05", "M", "NOR",
  "ST01-06", "F", "JPN",
  "ST01-07", "F", "USA"
)

covar <- adsl %>%
  derive_vars_merged(
    dataset_add = country_code_lookup,
    new_vars = exprs(COUNTRYN = country_number, COUNTRYL = country_name),
    by_vars = exprs(COUNTRY = country_code)
  )
covar
#> # A tibble: 7 × 5
#>   USUBJID SEX   COUNTRY COUNTRYN COUNTRYL                                       
#>   <chr>   <chr> <chr>      <dbl> <chr>                                          
#> 1 ST01-01 F     AUT           16 Austria                                        
#> 2 ST01-02 M     MWI          157 Malawi                                         
#> 3 ST01-03 F     GBR           80 United Kingdom of Great Britain and Northern I…
#> 4 ST01-04 M     CHE           42 Switzerland                                    
#> 5 ST01-05 M     NOR          168 Norway                                         
#> 6 ST01-06 F     JPN          116 Japan                                          
#> 7 ST01-07 F     USA          235 United States of America