Table 3 Sensitivity and specificity for weight status by gender
| Â | Â | Sensitivity | Â | Specificity | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Â | Â | Boys | Â | Girls | Â | Boys | Â | Girls | ||||||||
| Â | Â | % | Â | 95% CI | Â | % | Â | 95% CI | Â | % | Â | 95% CI | Â | % | Â | 95% CI |
Weight status | Â | Â | Â | Â | Â | Â | Â | Â | ||||||||
   Underweight |  | 66.9 |  | 59.2-74.6 |  | 76.5 |  | 68.8-84.2 |  | 95.0 |  | 91.5-98.5 |  | 95.5 |  | 91.7-99.3 |
   Normal weight |  | 90.7 |  | 89.1-92.3 |  | 92.7 |  | 91.3-94.1 |  | 73.7 |  | 71.3-76.1 |  | 74.5 |  | 72.1-76.9 |
   Overweight |  | 75.8 |  | 71.1-80.5 |  | 73.7 |  | 68.7-78.7 |  | 97.0 |  | 95.1-98.9 |  | 98.5 |  | 97.1-99.9 |