Table 1 Characteristics of adolescent participants (aged 11–18 years) from NDNS Years 1–8 of Rolling Programme
Characteristics | Boys | Girls | Total |
|---|---|---|---|
n | 1282 | 1305 | 2587 |
Age (years), mean (SD) | 14.5 (2.3) | 14.7 (2.2) | 14.6 (2.2) |
Ethnicity, n (%) | |||
 White | 1143 (89) | 1166 (89) | 2309 (89) |
 Non-white | 138 (11) | 138 (11) | 276 (11) |
IMD, n (%) | |||
 Two least deprived quintiles | 340 (41) | 326 (39) | 666 (40) |
 Three most deprived quintiles | 493 (59) | 506 (61) | 999 (60) |
Equivalised Household Income, n (%) | |||
 ≤£27,000 | 754 (59) | 770 (59) | 1524 (59) |
 >£27,000 | 393 (31) | 404 (31) | 797 (31) |