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Table 3 Outcomes measurements in the Health Behaviour in School-aged Children Study (HBSC) Survey

From: A youth-led social marketing intervention to encourage healthy lifestyles, the EYTO (European Youth Tackling Obesity) project: a cluster randomised controlled0 trial in Catalonia, Spain

Health Behaviour in School-aged Children Study Items Outcome measured Question Possible answers
Eating habits Nutritional behaviour. Fruit, vegetable and water consumption. How many times a week do you usually eat or drink (fruits, vegetables, sweets, coke or other soft drinks that contain sugar)…? Never, less than once a week, once a week, 2–4 days a week, 5–6 days a week, once a day, every day, every day more than once every day.
(primary outcomes) Breakfast quantity and quality How often do you usually have breakfast (more than a glass of milk or fruit juice)? Weekdays (I never have breakfast, one day, two days, three days, four days, five days).
   Weekends (I never have breakfast during the weekend, I usually have breakfast on only one day of the weekend (Saturday OR Sunday), I usually have breakfast on both days (Saturday AND Sunday)).
Physical activity Physical activity practice Over the past 7 days, on how many days were you physically active for a total of at least 60 min per day? 0 days, 1 day, 2 days, 3 days, 4 days, 5 days, 6 days, 7 days.
(primary outcomes)   
  Outside school hours: How often do you usually exercise in your free time so much that you get out of breath or sweat? Every day, 4–6 times a week, 2–3 times a week, once a week, once a month, less than once a month, never.
  Outside school hours: How many hours a week do you usually exercise in your free time so much that you get out of breath or sweat? None, about half an hour, about 1 h, about 2 to 3 h, about 4 to 6 h, about 7 h or more.
Sedentary behaviour Sedentary behaviour About how many hours a day you usually watch television (includes DVD and videos) in your free time? Weekdays: None at all, about half an hour a day, about 1 h a day, about 2 h a day, about 3 h a day, about 4 h a day, about 5 h a day, about 6 h a day, about 7 or more hours a day.
(primary outcomes)   Weekends: None at all, about half an hour a day, about 1 h a day, about 2 h a day, about 3 h a day, about 4 h a day, about 5 h a day, about 6 h a day, about 7 or more hours a day.
  About how many hours a day do you usually play games on a computer or games console (PlayStation, Xbox, GameCube, etc.) in your free time? Weekdays: None at all, about half an hour a day, about 1 h a day, about 2 h a day, about 3 h a day, about 4 h a day, about 5 h a day, about 6 h a day, about 7 or more hours a day.
  About how many hours a day do you usually use a computer for chatting on-line, internet, emailing, homework, etc. in your free time? Weekends: None at all, about half an hour a day, about 1 h a day, about 2 h a day, about 3 h a day, about 4 h a day, about 5 h a day, about 6 h a day, about 7 or more hours a day.
Self-confidence Weight control and body image At the present, are you on a diet or doing something else to lose weight? No, my weight is fine; No, but I should lose some weight; No, because I need to put on weight; Yes.
(secondary outcomes)   
Body mass index (secondary outcomes) Perceived obesity and overweight prevalence How much do you weigh without clothes? Free space for answer.
  How tall are you without shoes? Free space for answer.
  1. Items obtained from the Health Behaviour in School-Aged Children (HBSC) 2009/2010 Ref. [35]