Neck circumference cut-off values for determining overweight/obese youth with BMI, WC and BFP
| Age | Using Cole’s BMI cut-off values | Using Katzmarzyk’s WC cut-off values | Using McCarthy’s BFP cut-off values | |||
| Boys | Girls | Boys | Girls | Boys | Girls | |
| 6 | 25.8 | 25.7 | 25.3 | 25.0 | 25.6 | 25.9 |
| 7 | 26.7 | 26.2 | 26.2 | 25.7 | 26.6 | 26.6 |
| 8 | 27.6 | 26.9 | 27.1 | 26.6 | 27.6 | 27.3 |
| 9 | 28.5 | 27.5 | 28.3 | 27.5 | 28.5 | 28.0 |
| 10 | 29.5 | 28.3 | 29.5 | 28.3 | 29.5 | 28.7 |
| 11 | 30.5 | 29.0 | 30.6 | 29.2 | 30.4 | 29.3 |
| 12 | 31.5 | 29.8 | 31.8 | 29.9 | 31.3 | 29.9 |
| 13 | 32.4 | 30.6 | 32.9 | 30.6 | 32.1 | 30.5 |
| 14 | 33.4 | 31.3 | 33.9 | 31.3 | 32.9 | 31.0 |
| 15 | 34.4 | 31.9 | 34.7 | 31.6 | 33.7 | 31.5 |
| 16 | 35.3 | 32.5 | 35.4 | 32.0 | 34.5 | 32.0 |
| 17 | 36.2 | 32.9 | 36.1 | 32.2 | 35.4 | 32.5 |
| 18 | 37.1 | 33.5 | 36.7 | 32.5 | 36.3 | 33.1 |
BFP, body fat percentage; BMI, body mass index; WC, waist circumference.