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. 2013 May 16;2013:501638. doi: 10.1155/2013/501638

Table 4.

Multiple linear regression coefficient (β) and coefficient of determination (R 2) of the relationship between percentage of body fat, adjusted for sex and normal individuals with excess body fat, and biochemical and clinical parameters in eutrophic adolescents (G1) (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 0.21 0.11 0.21 0.28 0.11 0.13 −0.29 0.08 0.22 0.25
R 2 0.18 0.17 0.18 0.18 0.17 0.17 0.19 0.17 0.17 0.18
TC (mg/dL) β 0.002 0.003 0.003 0.0007 0.004 −0.002 0.001 −0.001 −0.003 0.002 0.0001 −0.003
R 2 0.09 0.11 0.10 0.09 0.10 0.11 0.08 0.08 0.09 0.09 0.08 0.10
LDL (mg/dL) β 0.004 0.004 0.003 0.003 0.007 −0.0007 0.003 −0.0005 −0.001 0.004 0.0008 −0.002
R 2 0.07 0.08 0.07 0.07 0.08 0.07 0.06 0.06 0.06 0.07 0.06 0.07
TG (mg/dL) β 0.02 0.02 0.008 0.02 −0.004 0.01 0.001
R 2 0.11 0.12 0.04 0.11 0.08 0.05 0.06
Insulin (μU/dL) β 0.003 0.003 0.01** 0.001 0.003
R 2 0.49 0.49 0.51 0.49 0.49
HOMA-IR β 0.01**
R 2 0.09
SBP (mmHg) β 0.03 0.24 0.002 0.13 0.33 −0.02 0.14 0.01 0.22 0.43 −0.17 −0.02
R 2 0.15 0.15 0.15 0.15 0.16 0.15 0.15 0.15 0.15 0.18 0.15 0.15
DBP (mmHg) β −0.01 0.16 0.20 0.37 0.74** 0.11 0.36 −0.13 0.29 0.14 0.19 0.28
R 2 0.05 0.09 0.07 0.09 0.12 0.08 0.08 0.05 0.08 0.09 0.07 0.06

Note. HDL, TC/HDL, LDL/HDL, and uric acid 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; LDL: low-density lipoprotein; HOMA-IR: homeostasis model assessment-insulin resistance; SBP: systolic blood pressure; DBP: diastolic blood pressure; β: coefficient of multiple linear regression, R 2: coefficient of determination, —: did not meet the assumptions of linear regression; *P < 0.05; **P < 0.001; P < 0.0001.