Anthropometric and physical activity data in 6–7 year old children by sex
| Boys | Girls | p Value | |||
|---|---|---|---|---|---|
| No | Mean | No | Mean | ||
| Values in parentheses are SD or 95% confidence interval. Mass, BMI, SFS, and PA were not normally distributed. Therefore data were log transformed and a mean was calculated and then back transformed to a geometric mean as described in the text. For these variables a 95% confidence interval is given. | |||||
| BMI, Body mass index; SFS, sum of four skinfolds; LBM, lean body mass; PA, physical activity. | |||||
| Age (years) | 309 | 6.8 (0.4) | 283 | 6.7 (0.4) | <0.05 |
| Mass (kg) | 309 | 24.4 (19.8 to 34.9) | 283 | 23.7 (18.4 to 32.0) | <0.001 |
| Stature (m) | 309 | 1.24 (0.05) | 283 | 1.22 (0.05) | <0.001 |
| BMI (kg/m2) | 309 | 15.9 (13.5 to 20.2) | 283 | 15.9 (13.2 to 20.5) | NS |
| SFS (mm) | 307 | 23.3 (15.3 to 51.2) | 281 | 27.5 (17.6 to 54.4) | <0.001 |
| Fat percentage | 307 | 16.5 (5.2) | 281 | 21.4 (5.0) | <0.001 |
| LBM (kg) | 307 | 20.4 (1.8) | 281 | 18.7 (1.9) | <0.001 |
| PA (mean counts/min) | 291 | 743 (452 to 1308) | 269 | 679 (397 to 1062) | <0.001 |
| PA (minutes in 5 min bouts) | 291 | 122 (17 to 334) | 269 | 76 (0 to 194) | <0.001 |
| PA (minutes in 10 min bouts) | 291 | 53 (0 to 194) | 269 | 26 (0 to 94) | <0.001 |