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Table 1 Coding plan for the selected study variables

From: Prevalence and determinants of susceptibility to cigarette smoking among school students in Pakistan: secondary analysis of Global Youth Tobacco Survey

Variable Question in codebook Response options Response options
Outcome variable    
Susceptibility to smoking 1. If one of your friends offered you a cigarette, would you smoke it? 1 = Definitely not Students who are currently non-smokers and answered “Definitely not” to all 3 questions were coded as “non-susceptible”, and all other students were labeled as “susceptible” to smoking.
2 = Probably not
3 = Probably yes
3 = Probably yes
2. At any time during the next 12 months, do you think you will smoke a cigarette? 2. At any time during the next 12 months, do you think you will smoke a cigarette?
2. At any time during the next 12 months, do you think you will smoke a cigarette?
3 = Probably yes
4 = Definitely yes
3. Do you think, you will be smoking a cigarette 5 years now? 1 = Definitely not
2 = Probably not
3 = Probably yes
4 = Definitely yes
Independent variables    
Age in years (categorical) How old are you? 1 = 11 years old or younger 1 = Aged ≤ 13
  2 = 12 years old 2 = Aged > 13
  3 = 13 years old  
  4 = 14 years old  
  5 = 15 years old  
  6 = 16 years old  
  7 = 17 years old or older  
Parents’ smoking status Do your parents smoke? 1 = None 1 = None
2 = Both 2 = At least one parent smokes
3 = Father only 3 = I don’t know
4 = Mother only  
5 = I don’t know  
Friends’ smoking status Do any of your closest friends smoke cigarettes? 1 = None of them 1 = Do not have friends who smoke
2 = Some of them 2 = Have friends who smoke
3 = Most of them  
4 = All of them  
Classes on harmful effects of smoking During this school year were you taught in any of your classes about the dangers of smoking? 1 = Yes 1 = Did attend
2 = No 2 = Did not attend
3 = Not sure  
Access to anti smoking media During the past 30 days (1 month) how many anti-smoking media messages (e.g. television, radio, billboards, posters, newspapers, magazines, movies) have you seen? 1 = A lot 1 = Yes
2 = A few 2 = No
3 = None  
Exposure to billboards cigarette marketing During the past 30 days (1 month) how many advertisements for cigarettes have you seen on billboards? 1 = A lot 1 = Yes
2 = A few 2 = No
3 = None  
Exposure to newspapers/magazines cigarette marketing During the past 30 days (1 month) how many advertisements or promotions for cigarettes have you seen in newspapers or magazines? 1 = A lot 1 = Yes
2 = A few 2 = No
3 = None  
Boys who smoke have “more or less friends Do you think boys who smoke cigarettes have more or less friends? 1 = More friends 1 = More friends
2 = Less friends 2 = Less friends or no difference
3 = No difference from nonsmokers  
Girls who smoke have more or less friends Do you think girls who smoke cigarettes have more or less friends? 1 = More friends 1 = More friends
2 = Less friends 2 = Less friends or no difference
3 = No difference from nonsmokers  
Boys who smoke are more or less attractive Do you think smoking cigarettes make boys more or less attractive? 1 = More attractive 1 = More attractive
2 = Less attractive 2 = Less attractive or no difference
3 = No difference from nonsmokers  
Girls who smoke are more or less attractive Do you think smoking cigarettes make girls more or less attractive? 1 = More attractive 1 = More attractive
2 = Less attractive 2 = Less attractive or no difference
3 = No difference from nonsmokers  
People who smoke are more or less comfortable at social gatherings Does smoking cigarettes help people feel more comfortable at celebrations, parties or in other social gatherings? 1 = More comfortable 1 = More comfortable
2 = Less comfortable 2 = Less comfortable or no difference
3 = No difference from nonsmokers  
Knowledge of harmful effects of smoking Do you think cigarette smoking is harmful to your health? 1 = Definitely not 0 = Poor knowledge (response 1-3)
2 = Probably not 1 = Good knowledge (response 4)
3 = Probably yes  
4 = Definitely yes  
Knowledge of harmful effects of secondhand smoke Do you think smoke from other people’s cigarette is harmful to you? 1 = Definitely not 0 = Poor knowledge (response 1-3)
2 = Probably not 1 = Good knowledge (response 4)
3 = Probably yes  
4 = Definitely yes  
Ever tried cigarette smoking Have you ever tried or experimented with cigarette smoking, even one or two puffs? 1 = Yes 1 = Ever smoked
2 = No 0 = Never smoked