Table 1 Adolescent cancer risk behaviours and their derivation
Cancer risk behaviours | Definition/how derived | |||
|---|---|---|---|---|
Age 11 | Age 14 | Age 16 | Age 18 | |
Tobacco smoking | Young person has ever smoked. | Young person has smoked cigarettes in past 6 months. | Young person smokes every week. | Young person smokes every week. |
Alcohol consumption | Young person has had a whole drink before age 12 years. | Young person has had whole drink in past 6 months. | Young person has had 6 or more whole drinks in past 30 days. | Young person consumes alcohol ≥2–3 times a week or has hazardous alcohol consumption. |
Obesity | Young person has a UK 1990 BMI population reference ≥95th centile. | Young person has a UK 1990 BMI population reference ≥95th centile. | Young person has a UK 1990 BMI population reference ≥95th centile. | Young person has a UK 1990 BMI population reference ≥95th centile. |
Sexual risk | Young person has had penetrative sex without the use of a condom on the last occasion they had sex in the past year. | Young person has had penetrative sex without the use of a condom on the last occasion they had sex in the past year. | Young person has had penetrative sex without the use of a condom on the last occasion they had sex in the past year. | Young person has had penetrative sex without the use of a condom on the last occasion they had sex in the past year. |
Physical inactivity | Young person has participated in vigorous physical activity 1–3 times a week or less (parent report). | Young person typically exercises < 5 times a week (self-report) or has participated in vigorous physical activity 1–3 times a week or less (parent report). | Young person typically exercises < 5 times a week (self-report) or has participated in vigorous physical activity 1–3 times a week or less (parent report). | Young person typically exercises < 5 times a week (self-report) or has participated in vigorous physical activity 1–3 times a week or less (parent report). |