Table 1 HRB variables used for clustering

HRB for clustering

Cigarettes

How many cigarettes have you smoked per day?

From 0 to 40 cigarettes or more.

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Alcohol consumption

In the past week, how many drinks did you consume?

From 0 to 20 drinks or more.

Weekly quantity of drinks was calculated based on the number of drinks consumed each day in the previous week.

Unhealthy food consumption

During the last week, on how many days have you consumed fried meals, sugary drinks, desserts or candies, unhealthy snacks and fast food.

From 0 to 7 days.

Responses were summed to provide a total score indicating total score of weekly unhealthy food consumption.

Binge drinking

Thinking back to the past 30 days, how often have you had 5 or more drinks on a single occasion?

Responses were scored on a 6-point scale: never, once, twice, 3 to 5 times, 6 to 9 times, and 10 or more times.

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Marijuana use

Have you smoked marijuana?

Yes/No

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Benzodiazepines use

Have you taken self-medicated tranquilizers?

Yes/No

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