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Table 1 The questionnaire administered, divided into domains associated with health risk factors

From: Problematic social networking site usage and substance use by young adolescents

Domain risk factors

Variable name

Domain

Socio-demographic factors

Age

How old are you?

Sex

Are you (male or female)?

Nationality

What’s your nationality?

Family setting

Separated parents

Do your parents live together? (Yes/No)

Father’s alcohol consumption

Does your father drink alcohol? (Never/Rarely/Once a month/ Once a week/ Every day), after dichotomized as (Yes/No)

Father’s smoking

Does your father smoke? (Yes/No)

Mother’s alcohol consumption

Does your mother drink alcohol? (Never/Rarely/Once a month/ Once a week/ Every day) after dichotomized as (Yes/No)

Mother’s smoking

Does your mother smoke? (Yes/No)

Sibling’s alcohol consumption

Does your sibling drink alcohol? (Never/Rarely/Once a month/ Once a week/ Every day) after dichotomized as (Yes/No)

Sibling’s smoking

Does your sibling smoke? (Yes/No)

Education

How would you define the education that you have received from your parents as regards obeying rules? (Flexible/Rigid/No rules)

Rules for returning home

When you go out with friends, are you asked to be back by a certain time? (Yes/No/I never go out with friends)

Weekly pocket money

Do you have weekly pocket money? (Yes/No)

Peer domain

Size of group of friends

How large is your group of friends? (No fixed group/2–4 friends/5–9 friends/10–20 friends/> 20 friends)

Decision-maker in group of friends

Who makes decisions in your group of friends? (“I usually decide what we do”/“We decide together”/ “Others decide for me”)

Friends’ alcohol consumption

Do your friends drink alcohol? (Never/Rarely/Once a month/ Once a week/ Every day)

Friends’ smoking

Do your friends smoke? (Yes/No)

Personality domain

Parish groups/Volunteering/ Scouting

Do you often go to parish/ volunteering/ scouting groups? (Yes/No)

Artistic activities

Do you engage in artistic activities? (Yes/No)

Playing sports

Do you play sports? (Yes/No)

Playing competitive sport

Do you play competitive sports? (Yes/No)

Obeying rules

When people ask you to respect the rules: (“Always obeys the rules/No respect for rules”)

Average school mark

What are your average school marks across subjects? (4 or less/5/6/7/8/9/10)

Behavioral domain

Hours of sleep

How many hours do you sleep at night? (5/6/7/8/9/10/More than 10)

Time of returning home in the evenings

What time do you return home in the evening? (18.00/19.00/20.00/21.00/22.00/23.00/24/00/After midnight) after dichotomized as From 18 to 21:59 h / After 22:00 h

Text messages sent

How many text messages do you send a day?(Number of text messages). Categorized as: 0–15 / 16–99 / 100–499 / ≥500

Hours spent playing with videogames

On average, how many hours a day do you play with videogames? (Number of hours)

Hours spent watching TV

On average, how many hours a day do you watch television? (Number of hours)

Scratch-and-win cards

Have you ever bought scratch and win cards? (Yes/No)

Video poker

Have you ever bet money at video poker? (Yes/No)

Online betting

Have you ever placed bets on the internet? (Yes/No)