Physical health |
General health | Age 7 | Main respondent report | Excellent, very good, good, fair or poor | Excellent–good or fair–poor |
Long-standing illness | Age 7 | Main respondent report of an illness that has troubled child for a period of time or would be likely to | Yes or no | – |
Body mass index | Age 7 | Derived from heights and weights measured by trained interviewers | Normal weight, overweight or obese (International Obesity Taskforce cut-offs) | Normal weight or overweight–obese |
Injury | Between age 5–7 | Main respondent report of an unintentional injury for which medical attention was sought | Yes or no | – |
Asthma | Age 7 | Main respondent report whether child had ever had asthma | Yes or no | – |
Fits | Age 7 | Main respondent report of any of the following: minor fit, seizure, epilepsy, febrile fit or convulsion, fainting, blackouts | Yes or no | – |
Mental health (using Strengths and Difficulties Questionnaire (SDQ)) |
Emotional problems | Age 7 | Main respondent completed the SDQ | Normal, borderline or abnormal using Goodman SDQ cut-offs20
| Normal or borderline–abnormal |
Conduct problems | Age 7 | As above | As above | As above |
Hyperactivity | Age 7 | As above | As above | As above |
Peer problems | Age 7 | As above | As above | As above |
Pro-social behaviour | Age 7 | As above | As above | As above |
Total difficulties score | Age 7 | Created by combining scores from difficulties component | As above | As above |