cchsflow (version 2.1.0)

SMKG040_fun: Age started smoking daily - daily/former daily smokers

Description

This function creates a continuous derived variable (SMKG040_fun) that calculates the approximate age that a daily or former daily smoker began smoking daily.

Usage

SMKG040_fun(SMKG203_cont, SMKG207_cont)

Arguments

SMKG203_cont

age started smoking daily. Variable asked to daily smokers.

SMKG207_cont

age started smoking daily. Variable asked to former daily smokers.

Value

value for age started smoking daily for daily/former daily smokers in the SMKG040_cont variable

Details

SMKG203 (daily smoker) and SMKG207 (former daily) are present in CCHS 2001-2014, and are separate variables. For CCHS 2015 and onward, SMKG040 (daily/former daily) combines the two previous variables. SMKG040_fun takes the continuous functions (SMKG203_cont and SMKG207_cont) to create SMKG040 for 2001-2014.

Examples

# NOT RUN {
 
# Using SMKG040_fun() to create age values across CCHS cycles
# SMKG040_fun() is specified in variable_details.csv under SMKG040_cont.

# To create a continuous harmonized variable for SMKG040, use rec_with_table() 
# for each CCHS cycle and specify SMKG040_cont.

library(cchsflow)

age_smoke_dfd_2009_2010 <- rec_with_table(
  cchs2009_2010_p, c(
    "SMKG203_cont", "SMKG207_cont","SMKG040_cont"
  )
)

head(age_smoke_dfd_2009_2010)

age_smoke_dfd_2011_2012 <- rec_with_table(
  cchs2011_2012_p,c(
    "SMKG203_cont", "SMKG207_cont","SMKG040_cont"
  )
)

tail(age_smoke_dfd_2011_2012)

combined_age_smoke_dfd <- suppressWarnings(merge_rec_data
(age_smoke_dfd_2009_2010,age_smoke_dfd_2011_2012))

head(combined_age_smoke_dfd)
tail(combined_age_smoke_dfd)
# }