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

In cchsflow: Transforming and Harmonizing CCHS Variables

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.

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.

Value

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

Note

In previous cycles, both SMKG203 and SMKG207 included respondents who did not state their smoking status. From CCHS 2015 and onward, SMKG040 only included respondents who specified daily smoker or former daily smoker. As a result, SMKG040 has a large number of missing respondents for CCHS 2015 survey cycles and onward.

Examples

 
# 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)

cchsflow documentation built on May 28, 2022, 1:09 a.m.