Table 7 Comparison of linear (eq. (16)) and non-linear (eq. (9)) regression expressions for predicting body fat fraction from BMI and age.
From: Physiological models of body composition and human obesity
Subjects | ± Age | Linear (eq. (16)) | Non-linear Model I (eq. (9)) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Â | Â | a | b | c | MSR | BMI0 | f1 | c | MSR |
Male Caucasians | No | -.198 | .0145 | ---- | 0.00426 | 17.98 | .612 | ---- | .00432 |
| Â | Yes | -.252 | .0132 | .00212 | 0.00278 | 20.23 | .485 | .00199 | .00303 |
Male Caucasian | No | -.177 | .0137 | ----- | .0040 | 17.50 | .583 | ---- | .00407 |
+Hispanic+Black | Yes | -.239 | .0131 | .00187 | 0.00285 | 19.80 | .481 | .00176 | .00304 |
Male Asian | Yes | -.188 | .0129 | .00173 | 0.00212 | 16.75 | .423 | .00173 | .00224 |
Male Puerto Rican | Yes | -.187 | .0122 | .00167 | 0.00199 | 18.77 | .523 | .00153 | .00198 |
Female Caucasian | No | 0.0141 | .0116 | ----- | 0.00413 | 14.01 | .732 | ----- | .00332 |
| Â | Yes | -.0524 | .0107 | .00191 | 0.00298 | 15.03 | .625 | .00154 | .00259 |
Female Caucasian +Hispanic+Black | No | 0.0228 | .0112 | ------ | .00371 | 14.03 | .721 | ----- | .00291 |
| Â | Yes | -.0442 | .01107 | .00173 | 0.00275 | 15.00 | .632 | .00135 | .00235 |
Female Asian | Yes | -.119 | .0157 | .00124 | 0.00145 | 12.97 | .561 | .00124 | .00148 |
Female Puerto Rican | Yes | 0.0463 | .00943 | .000972 | .00164 | 13.38 | .629 | .000757 | .00150 |