SMKG207_fun {cchsflow}

Age started to smoke daily - former daily smoker

Description

This function creates a continuous derived variable (SMKG207_cont) for age started to smoke daily for former daily smokers.

Usage

SMKG207_fun(SMK_030, SMKG040)

Arguments

SMK_030

smoked daily - lifetime (occasional/former smoker)

SMKG040

age started to smoke daily - daily/former daily smoker

Details

For CCHS 2015-2018, age started to smoke daily was combined for daily and former daily smokers.Previous cycles had separate variables for age started to smoke daily. Smoked daily in lifetime is used to define former daily smoker.

Value

value for continuous age started to smoke daily for former daily smokers in the SMKG207_cont variable

Examples

 
# Using SMKG207_fun() to derive age started to smoke daily values across 
# CCHS cycles.
# SMKG207_fun() is specified in variable_details.csv along with the 
# CCHS variables and cycles included.

# To transform SMKG207_A across cycles, use rec_with_table() for each
# CCHS cycle and specify SMKG207_A.
# For CCHS 2001-2014, only specify SMKG207_A.
# For CCHS 2015-2018, specify the parameters and SMKG207_A for former daily 
# smoker age.

library(cchsflow)

agecigfd_2009_2010 <- rec_with_table(
  cchs2009_2010_p, "SMKG207_A")

head(agecigfd_2009_2010)

agecigfd_2017_2018 <- rec_with_table(
  cchs2017_2018_p,c(
    "SMK_030","SMKG040","SMKG207_A"
  )
)

tail(agecigfd_2017_2018)

combined_agecigfd <- suppressWarnings(merge_rec_data
(agecigfd_2009_2010,agecigfd_2017_2018))

head(combined_agecigfd)
tail(combined_agecigfd)