Boys, n=513 | Girls, n=418 | Boys’ ICC | Girls’ ICC | |
---|---|---|---|---|
Mean (SD) | Mean (SD) | |||
Age | 12.4 (1.46) | 12.3 (1.50) | ||
(mL/kg/min)* | 44.2 (5.4) | 40.1 (5.6) | R=0.11 | R=0.12 |
Physical activity (PAQ) | 2.92 (0.72) | 2.58 (0.61) | R=0.10 | R=0.09 |
BMI (kg/m2) | 19.1 (4.1) | 19.8 (4.4) | ||
BMI (z-score) | 0.32 (1.42) | 0.39 (1.24) | R=0.09 | R=0.08 |
Deprivation (EID) | 11.6 (5.0) | 11.7 (6.5) | R=0.27 | R=0.31 |
Ethnicity (White-British) | 93% (n=477) | 92.5% (n=387) | ||
Urban‡ | 73% (n=138) | 75% (n=104) | ||
Rural‡ | 27% (n=375) | 25% (n=314) | ||
Followed 2012 Olympics | ||||
A lot | 57.2% (n=293) | 60.1% (n=251) | ||
A little | 42.8% (n=220) | 39.9% (n=167) | ||
Inspired to try new activity | 54.3% (n=279) | 49.3% (n=206) | ||
Continued at 12 months | 45.2% (n=232) | 40.0% (n=167) |
*Estimated from 20 m shuttle-run using the equation of Leger et al (1988).12
†Defined using the International Obesity Task Force criteria.
‡Urban included urban, town and fringe, rural includes villages and isolated dwellings (National Statistics Postcode Directory, 2010).
BMI, body mass index, z-score calculated using the UK1990 Growth Reference (Cole et al, 1995); EID, English Indices of Deprivation (Office for National Statistics, 2010); ICC, intracluster correlation coefficients; PAQ, Physical Activity Questionnaire for Adolescents.