Table IV.
Cross-classification of categories* of PBFDXA with either BMI-for-age or SF sum
| Boys: PBFDXA category |
Girls: PBFDXA category |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| BMI-for-age category | 1 (low) | 2 | 3 | 4 | 5 (elevated) | 1 (low) | 2 | 3 | 4 | 5 (elevated) |
| <25th percentile | 41%† | 35% | 23% | 2% | 0 | 48% | 32% | 19% | 1% | 0 |
| 25th-49th percentile | 32% | 28% | 37% | 3% | 0 | 29% | 30% | 39% | 1% | 0 |
| 50th-84th percentile | 14% | 20% | 50% | 14% | 2% | 7% | 21% | 54% | 16% | 2% |
| 85th-94th percentile | 0 | 4% | 28% | 46% | 22% | 1% | 1% | 35% | 43% | 20% |
| ≥95th percentile (obese) | 0 | 0 | 4% | 21% | 75% | 0 | 0 | 4% | 20% | 76% |
| SF sum category | ||||||||||
| 1 (low) | 61% | 28% | 1% | 0 | 0 | 62% | 32% | 6% | 0 | 0 |
| 2 (low-normal) | 28% | 42% | 30% | 0 | 0 | 27% | 40% | 33% | 0 | 0 |
| 3 (moderate) | 5% | 17% | 63% | 13% | 1% | 2% | 16% | 65% | 16% | 2% |
| 4 (slightly elevated) | 0 | 1% | 25% | 53% | 21% | 0 | 1% | 31% | 46% | 22% |
| 5 (elevated) | 0 | 0 | 1% | 20% | 79% | 0 | 0 | 4% | 20% | 76% |
*
Categories of PBFDXA and the SF sum were constructed so the that number of children in each category would be the same as the number of children in each BMI-for-age category.
†
Values are row percents, representing the proportion of children in the specified BMI or SF sum category who are in specified category of body fatness.