Table 1

Sample characteristics of adolescents (11–16 years), Youth Tobacco Policy Survey Wave 5 (2008) and Wave 6 (2011)

 Mean (SD)13.48(1.72)13.46(1.66)
Social grade*
Smoking status
  • *Based on occupation of chief income earner in the household and coded according to the National Readership Survey Social Grading system. ABC1—Middle classes (A, upper middle class, B, middle class, C1, lower middle class), C2DE, Working class (C2, skilled manual, D, semiskilled and unskilled manual, E, lowest level of subsistence).