This is one of 3 functions used to create a derived variable (resp_condition_der) that determines if a respondents has a respiratory condition. 3 different functions have been created to account for the fact that different respiratory variables are used across CCHS cycles. This function is for CCHS cycles (2009-2014) that only use COPD and Emphysema as a combined variable. Asthma is used across CCHS cycles as a separate variable.

resp_condition_fun1(DHHGAGE_cont, CCC_091, CCC_031)

Arguments

DHHGAGE_cont

continuous age variable.

CCC_091

variable indicating if respondent has either COPD or Emphysema

CCC_031

variable indicating if respondent has asthma

Value

a categorical variable (resp_condition_der) with 3 levels:

  1. respondent is over the age of 35 and has a respiratory condition

  2. respondent is under the age of 35 and has a respiratory condition

  3. respondent does not have a respiratory condition

See also

Examples

# Using resp_condition_fun1() to create values across CCHS cycles
# (2009-2014) resp_condition_fun1() is specified in
# variable_details.csv along with the CCHS variables and cycles included.

# To transform resp_condition_der, use rec_with_table() for each CCHS cycle
# and specify resp_condition_der, along with the various respiratory
# variables. Then by using merge_rec_data() you can combine
# resp_condition_der across cycles.

library(cchsflow)

resp2009_2010 <- suppressWarnings(rec_with_table(
  cchs2009_2010_p,  c(
    "DHHGAGE_cont", "CCC_091", "CCC_031",
    "resp_condition_der"
  )
))
#> No variable_details detected.
#>               Loading cchsflow variable_details
#> Using the passed data variable name as database_name

head(resp2009_2010)
#>   CCC_031 CCC_091 DHHGAGE_cont resp_condition_der
#> 1       2   NA(a)           13                  3
#> 2       2   NA(a)           27                  3
#> 3       2       2           62                  3
#> 4       2       2           52                  3
#> 5       2       2           67                  3
#> 6       2       2           62                  3

resp2011_2012 <- suppressWarnings(rec_with_table(
  cchs2011_2012_p, c(
    "DHHGAGE_cont", "CCC_091", "CCC_031",
    "resp_condition_der"
  )
))
#> No variable_details detected.
#>               Loading cchsflow variable_details
#> Using the passed data variable name as database_name

tail(resp2011_2012)
#>     CCC_031 CCC_091 DHHGAGE_cont resp_condition_der
#> 195       2       2         72.0                  3
#> 196       2   NA(a)         22.0                  3
#> 197       2   NA(a)         18.5                  3
#> 198       2       2         42.0                  3
#> 199       2       2         62.0                  3
#> 200       2       2         52.0                  3

combined_resp <-
 suppressWarnings(merge_rec_data(resp2009_2010, resp2011_2012))

head(combined_resp)
#>   CCC_031 CCC_091 DHHGAGE_cont resp_condition_der
#> 1       2   NA(a)           13                  3
#> 2       2   NA(a)           27                  3
#> 3       2       2           62                  3
#> 4       2       2           52                  3
#> 5       2       2           67                  3
#> 6       2       2           62                  3
tail(combined_resp)
#>     CCC_031 CCC_091 DHHGAGE_cont resp_condition_der
#> 395       2       2         72.0                  3
#> 396       2   NA(a)         22.0                  3
#> 397       2   NA(a)         18.5                  3
#> 398       2       2         42.0                  3
#> 399       2       2         62.0                  3
#> 400       2       2         52.0                  3