Table 2.
Changes over 10-20 years in overweight and obesity based on body mass index and waist circumference in British youth aged 11-16 years by sex. Values are percentage overweight exceeding 91st centile (percentage obese exceeding 98th centile) unless stated otherwise
| Variable
|
British Standards Institute survey
|
National diet and nutrition survey, 1997
|
% increase over time
|
|||||
|---|---|---|---|---|---|---|---|---|
| Males (n=1567)*
|
Females (n=2217)†
|
Males (n=389)
|
Females (n=387)
|
Males
|
Females
|
|||
| Body mass index | 7.7 (3.3) | 5.9 (1.6) | 20.6 (10.0) | 17.3 (8.3) | 12.9 (6.8) | 11.4 (6.6) | ||
| Waist circumference | 8.7 (3.2) | 8.8 (3.1) | 28.5 (13.8) | 38.1 (17.5) | 19.8 (10.7) | 29.3 (14.5) | ||
*
1977.
†
1987.