Table 5.
Soldiers meeting or exceeding age adjusted BMI standards and body fat as determined by AR 600-9.
| Age group and BMI threshold and maximum allowable body fat (AR 600-9) | n | True positive |
True negative |
False negative |
True positive + true negative/n |
|---|---|---|---|---|---|
| Under BMI and passed body fat | Over BMI and failed body fat | Over BMI and passed body fat | Using BMI only, % soldiers correctly identified as meeting or exceeding army body fat standards | ||
| < 21 years (25.9 kg/m2) (20% BF) | 34 | 23 | 5 | 6 | 82% |
| 21–27 years (26.5 kg/m2) (22% BF) | 63 | 35 | 19 | 9 | 86% |
| 28–39 years (27.2 kg/m2) (24% BF) | 11 | 4 | 4 | 3 | 73% |
| > 40 years (27.5 kg/m2) (26% BF) | 2 | 1 | 0 | 1 | 50% |
| Total | 110 | 63 | 28 | 19 | 83% |