Table 1

Sample characteristics

Frequency (%)
Female15 200 (52.7)
Age13.6 (1.4)*
Family Affluence Scale14.9 (2.0)*
Living arrangements
 Both parents18 691 (64.8)
 Parent and stepparent3778 (13.1)
 Single mother5323 (18.5)
 Single father747 (2.6)
 Foster care295 (1.0)
Smoking
 Occasional409 (1.4)
 Weekly or more841 (3.0)
Cannabis use
 Less than daily468 (1.9)
 Daily167 (0.7)
Alcohol
 1–5 drinks per occasion6054 (21.6)
 5+ drinks per occasion1690 (6.0)
Ever used mephedrone261 (1.0)
  • *Mean (and SD).