1 = Year 7
2 = Year 9

0 = Male
1 = Female

0 = Information not yet obtained
1 = White-British
2 = White-Irish
3 = White-Asian
4 = White-Carribean
5 = White and Black African
6 = Chinese
7 = Indian
8 = Pakistani
9 = Norweigan
10 = Black African
11 = Bangladeshi
12 = Any other Asian Background
13 = Any other black background
14 = Any other ethnic group
15 = Any other mixed background
16 = Any other white background
17 = Refused

0 = No
1 = Yes

0 = None
1 = Action
2 = Action Plus
3 = Statement

Intervention or Control group
0 = Control
1 = Intervention