Table 6.
Multiple linear regression coefficient (β) and coefficient of determination (R 2) of the relationship between percentage of body fat, adjusted for sex, and biochemical and clinical parameters in overweight adolescents (G2) (Viçosa, Minas Gerais, Brazil (2010)).
| Eq (1) | Eq (2) | Eq (3) | Eq (4) | Eq (5) | Eq (6) | Eq (7) | Eq (8) | Eq (9) | Eq (10) | BIA1 | BIA2 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fasting glucose (mg/dL) | β | — | — | 0.16 | — | — | — | — | — | — | — | — | — |
| R 2 | 0.06 | ||||||||||||
| TC (mg/dL) | β | 0.004 | −0.002 | — | — | — | 0.004* | — | 0.004 | 0.007** | 0.005 | — | 0.004** |
| R 2 | 0.12 | 0.09 | 0.14 | 0.11 | 0.18 | 0.12 | 0.17 | ||||||
| HDL (mg/dL) | β | −0.20 | 0.23 | — | — | −0.12 | 0.06 | −0.24 | −0.34 | 0.09 | −0.16 | −0.02 | — |
| R 2 | 0.15 | 0.15 | 0.15 | 0.14 | 0.15 | 0.16 | 0.15 | 0.15 | 0.14 | ||||
| LDL (mg/dL) | β | 1.17 | −1.23 | 2.27 | 0.10 | 1.65* | 1.03 | 1.72 | — | 1.86* | 0.93 | 2.28* | — |
| R 2 | 0.05 | 0.04 | 0.12 | 0.13 | 0.08 | 0.06 | 0.07 | 0.09 | 0.05 | 0.12 | |||
| TG (mg/dL) | β | — | — | 0.007** | 0.007* | 0.02** | — | — | — | 0.02** | — | 0.02* | — |
| R 2 | 0.11 | 0.08 | 0.12 | 0.11 | 0.13 | ||||||||
| Uric Acid (mg/dL) | β | — | −0.007 | — | — | — | 0.08** | 0.13** | — | — | 0.12** | — | — |
| R 2 | 0.26 | 0.37 | 0.37 | 0.39 | |||||||||
| Insulin (μU/dL) | β | 0.02** | — | 0.006* | 0.008** | 0.02** | — | — | 0.02** | 0.02** | 0.02** | 0.02** | 0.009* |
| R 2 | 0.11 | 0.09 | 0.13 | 0.14 | 0.13 | 0.13 | 0.17 | 0.17 | 0.07 | ||||
| HOMA-IR |
β | 0.02** | — | 0.006* | 0.009** | 0.02** | — | — | 0.02** | 0.02** | 0.02** | — | 0.009* |
| R 2 | 0.12 | 0.10 | 0.13 | 0.14 | 0.12 | 0.12 | 0.16 | 0.07 | |||||
| DBP (mmHg) | β | 0.05 | — | — | — | 0.11 | −0.03 | 0.27 | 0.40 | 0.34 | 0.66* | 0.28 | 0.31 |
| R 2 | 0.11 | 0.11 | 0.11 | 0.12 | 0.15 | 0.14 | 0.19 | 0.13 | 0.15 |
Note. TC/HDL, LDL/HDL, and SBP did not meet the assumptions of linear regression. BIA1: tetra-polar horizontal electrical bioimpedance analysis; BIA2: tetra-polar vertical electrical bioimpedance analysis using 8-point tactile electrode; Eq: equation; TC: total cholesterol; TG: triglycerides; HDL: high-density lipoprotein; LDL: low-density lipoprotein; HOMA-IR: homeostasis model assessment-insulin resistance; DBP: diastolic blood pressure; β: coefficient of linear regression; R 2: coefficient of determination; —: did not meet the assumptions of linear regression; *P < 0.05; **P < 0.001; ‡ P < 0,0001.