Table 1.
Descriptive statistics of sample characteristics
| Mean | Standard deviation | |
|---|---|---|
| Year 7 | ||
| BMI (kg/m2) | 19.09 | 3.40 |
| BMI SDS | 0.40 | 1.19 |
| WC (cm) | 66.58 | 9.07 |
| WC SDS | 0.82 | 1.23 |
| Age | 11.59 | 0.30 |
| Male (proportion) | 0.48 | 0.50 |
| None-White (proportion) | 0.23 | 0.42 |
| Home deprivation Score | 0.26 | 0.22 |
| School deprivation score | 0.22 | 0.03 |
| Year 9 | ||
| BMI (kg/m2) | 20.48 | 3.76 |
| BMI SDS | 0.33 | 1.19 |
| WC (cm) | 73.95 | 10.47 |
| WC SDS | 1.17 | 1.24 |
| Age | 13.94 | 0.31 |
| Male (proportion) | 0.48 | 0.50 |
| None-White (proportion) | 0.23 | 0.42 |
| Home deprivation Score | 0.26 | 0.22 |
| School deprivation score | 0.22 | 0.05 |
| Year 11 | ||
| BMI (kg/m2) | 21.32 | 3.56 |
| BMI SDS | 0.22 | 1.17 |
| WC (cm) | 78.61 | 9.08 |
| WC SDS | 1.40 | 1.13 |
| Age | 15.92 | 0.31 |
| Male (proportion) | 0.49 | 0.50 |
| None-White (proportion) | 0.23 | 0.42 |
| Home deprivation Score | 0.26 | 0.22 |
| School deprivation score | 0.23 | 0.03 |
NB. BMI body mass index, SDS standardised, WC waist circumference