Table 4.
Agreement between body mass index and body fat assessments at different ages.
| Predictive Value | ||||||
|---|---|---|---|---|---|---|
| Age, y | Sensitivity | Specificity | Positive | Negative | κ (95% Confidence Interval) | Agreement |
| 11 | 1.0000 | 0.8505 | 0.5000 | 1.0000 | 0.5967 (0.4281, 0.7654) | Moderate |
| 12 | 0.9277 | 0.8814 | 0.4667 | 0.9909 | 0.5624 (0.4865, 0.6382) | Moderate |
| 13 | 0.8639 | 0.9050 | 0.4058 | 0.9888 | 0.5051 (0.4483, 0.562) | Moderate |
| 14 | 0.8435 | 0.9210 | 0.4011 | 0.9895 | 0.5040 (0.4706, 0.5374) | Moderate |
| 15 | 0.8445 | 0.9152 | 0.3796 | 0.9897 | 0.4825 (0.4523, 0.5127) | Moderate |
| 16 | 0.8627 | 0.9080 | 0.3711 | 0.9906 | 0.4756 (0.4443, 0.5068) | Moderate |
| 17 | 0.8300 | 0.9146 | 0.3517 | 0.9897 | 0.4535 (0.4148, 0.4921) | Moderate |
| 18 | 0.8421 | 0.8968 | 0.3221 | 0.9899 | 0.4198 (0.3345, 0.5052) | Moderate |
| 19 | 1.0000 | 0.8958 | 0.1667 | 1.0000 | 0.2598 (–0.1536, 0.6732) | Fair |