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. 2017 Jan 16;7(1):e014099. doi: 10.1136/bmjopen-2016-014099

Table 3.

Demographic characteristics of the sample

Per cent
Gender
 Male 55.6
 Female 44.4
Education
 Up to year 12 30.9
 Tertiary education and above 69.1
Socioeconomic status*
 Low 34.2
 Mid 44.3
 High 21.5
Number of years smoking
 ≤5 35.8
 ≥6 64.2
Readiness to quit
 Contemplators/preparers 28.4
 Precontemplators 71.6
Mean (SD)
Age 28.41 (6.43)
Heaviness of smoking† 2.20 (1.35)
Level of craving‡ 3.65 (1.25)

*n=79 due to missing data on this variable.

†Three participants responded ‘don't know’ to the question assessing time to first cigarette. As this variable is combined with the number of daily cigarettes category-level variable to calculate HSI, the category for number of daily cigarettes was imputed for the time to first cigarette score.

‡Response options were 1 ‘Not at all’, 2 ‘Hardly at all’, 3 ‘A little’, 4 ‘Somewhat’, 5 ‘Quite a bit’, 6 ‘A great deal’ and ‘Don't know/can't say’.