S_{I}* (model R^{2} = 43.5) | AIR* (model R^{2} = 11.6) | DI* (model R^{2} = 26.3) | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|

β ± SE | P | Percent change in R^{2} | β ± SE | P | Percent change in R^{2} | β ± SE | P | Percent change in R^{2} | |||||||

Age | |||||||||||||||

Linear | 0.0006 ± 0.0011 | <0.0001 | 10.6 | −0.2303 ± 0.0315 | <0.0001 | 41.6 | −0.2101 ± 0.0439 | <0.0001 | 16.5 | ||||||

Quadratic | −0.0004 ± 0.0001 | 0.0013 ± 0.0012 | −0.0071 ± 0.0019 | ||||||||||||

Sex (F vs. M) | 0.0150 ± 0.0293 | 0.5839 | 0.05 | −2.4395 ± 0.8883 | 0.0018 | 6.1 | −1.8651 ± 1.1406 | 0.0833 | 0.8 | ||||||

Ethnicity/clinic | |||||||||||||||

African American (Los Angeles) | |||||||||||||||

Hispanic (San Antonio) | 0.2052 ± 0.0366 | <0.0001 | 5.7 | −5.3888 ± 1.0895 | <0.0001 | 13.8 | −1.2041 ± 1.3076 | 0.0150 | 2.2 | ||||||

Hispanic (San Luis Valley) | 0.2181 ± 0.0387 | −3.0265 ± 1.1575 | 2.4949 ± 1.4139 | ||||||||||||

BMI (kg/m^{2}) | −0.0134 ± 0.0043 | 0.0002 | 2.2 | −0.0657 ± 0.0968 | 0.4386 | 0.4 | −0.5349 ± 0.1507 | <0.0001 | 4.0 | ||||||

Log SAT (cm^{2}) | −0.1996 ± 0.0526 | † | 5.4969 ± 1.1613 | <0.0001 | 16.3 | 1.5534 ± 1.8960 | † | ||||||||

Log VAT (cm^{2}) | −0.3456 ± 0.0333 | † | 27.0‡ | 0.5247 ± 0.9301 | 0.5271 | 0.3 | −8.7357 ± 1.2202 | † | 16.4‡ | ||||||

SAT by VAT interaction | −0.1334 ± 0.0278 | <0.0001 | −3.4585 ± 0.9874 | 0.0009 |

- *
*

*S*_{I}was natural log, and AIR and DI were square root-transformed (retaining sign). - †
†

*P*values not computed for main effects when interaction term is included in the model. - ‡
‡ The percent change in

*R*^{2}associated with dropping both fat measures and their interaction. The percent change in*R*_{2}for dropping the interaction term only was 3.7 for*S*_{I}and 2.9 for DI. The percent change in*R*_{2}is relative to the overall*R*_{2}.