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Table 1 Ungdata Survey 2017–2019: questions, response alternatives and variable definitions

From: Lifestyle habits and depressive symptoms in Norwegian adolescents: a national cross-sectional study

Questions

Response alternatives

Variable definitions

Symptoms of depression

 During the past week, have you been affected by any of the following issues:

  Felt that everything is a struggle (item 1)

Not been affected at all, not been affected much, been affected quite a lot, been affected a great deal.

High level of depressive symptoms ≥80th percentiles

  Had sleep problems (item 2)

  Felt unhappy, sad or depressed (item 3)

  Felt hopelessness about the future (item 4)

Low level of depressive symptoms <80th percentiles

  Felt stiff or tense (item 5)

  Worried too much about things (item 6)

Physical activity

 How often do you do physical activity, which gets you out of breath or makes you sweaty?

Never, rarely, 1–2 times a month, 1–2 times a week, 3–4 times a week, at least 5 times a week.

Active participants ≥3 times a week

Social media use

 Think about what you do a normal day: How much time do you spend on the following things: social media (facebook, Instagram etc.)

No time, <  30 min, 30 min - 1 h, 1–2 h, 2–3 h, >  3 h

≤ 3 h per day, >  3 h per day

Gaming on computer/TV

 Think about what you do a normal day: How much time do you spend on the following things: gaming on computer/TV?

No time, <  30 min, 30 min - 1 h, 1–2 h, 2–3 h, >  3 h

≤ 3 h per day, >  3 h per day

Gaming on telephone/tablets

 Think about what you do a normal day: How much time do you spend on the following things: gaming on telephone/tablets?

No time, <  30 min, 30 min - 1 h, 1–2 h, 2–3 h, >  3 h

≤ 3 h per day, >  3 h per day

Smoking

 Do you smoke?

I’ve never smoked, I used to smoke, but I’ve stopped completely now, I smoke less than once a week, I smoke every week, but not every day, I smoke every day.

Current use, no current use

 Smokeless tobacco

I’ve never used smokeless tobacco, I used to use smokeless tobacco previously but quit, I use smokeless tobacco less than once a week, I use smokeless tobacco weekly but not daily, I use smokeless tobacco daily

Current use, no current use

 Alcohol intoxication (previous 12 months)

Never, once, 2–5 times, 6–10 times, more than 11 times

Any intoxication episode, no intoxication episodes

Diet and beverage consumption

 How often do you eat or drink the following?

  Vegetables

Never, less than once a week, once a week, 2–3 times a week, 4–6 times a week, every day, several times a day

Once a day and more, less than once day

  Fruit

  Whole grain bread

  Fish

Once a week or more, less than once a week

  Salty snacks

≥ 4 times a week, <  4 times a week

  Candy

  Sugar-sweetened beverages

  Diet beverages

  Energy drinks

Gender

 Are you a boy or a girl?

Boy, girl

 

Perceived family economy

 Financially, has your family been well off, or badly off, over the past years?

We have been well off the whole time, we have generally been well off, we have neither been well off nor badly off, we have generally been badly off, we have been badly off the whole time

Good economy, nor bad or good economy, bad economy

Parents higher education

Did your father and mother go to university or to a university college? Select one answer for each parents. If you are not in touch with one or both of your parents, skip the question about that parent.

Yes, no

Both parents, One of the parents, None of the parents