Research Article

Urinary Malondialdehyde Is Associated with Visceral Abdominal Obesity in Middle-Aged Men

Table 2

Characteristics of patients in the two study groups.

Nonvisceral obesity
()
Visceral obesity
()
value

Sociodemographic parameters
 Age (years)0.185
 Smoking status 0.162
  Nonsmoker24 (60.0)16 (40.0)
  Smoker14 (42.4)19 (57.6)
 Alcohol consumer 30 (50.8)33 (49.2)0.770
 Activity (METS/week)1602.3 ± 2000.8907.1 ± 932.20.268
Dietary parameters
 Energy intake (Kcal/kg/day)0.475
 Protein intake (g/kg/day)0.800
 Fat intake (g/kg/day)0.543
 Carbohydrate (g/kg/day)0.163
Anthropometric parameters
 Body mass index (kg/m2)23.8 ± 1.825.1 ± 2.20.009
 Waist circumference (cm)83.9 ± 5.188.8 ± 7.40.002
 Sagittal abdominal diameter (cm)18.3 ± 1.419.8 ± 2.60.003
 DXA-measured fat
  Upper arm fat (%)24.8 ± 4.626.4 ± 4.50.139
  Lower leg fat (%)23.6 ± 4.025.1 ± 4.60.148
  Trunk fat (%)27.6 ± 3.930.6 ± 5.10.005
  Total fat (%)25.6 ± 3.427.8 ± 4.20.014
 CT-measured abdominal fat area
  VFA (cm2)74.9 ± 16.4128.8 27.9<0.001
  SFA (cm2)120.2 ± 42.1135.7 57.30.117
Metabolic parameters
 ALT (IU/L)31.2 ± 17.035.1 16.00.156
 GGT (IU/L)46.2 ± 28.799.5 99.50.008
 Uric acid (IU/L)6.2 ± 1.07.1 1.20.002
 CRP (mg/dL)0.10 ± 0.070.18 0.250.147
 LDL-cholesterol (mg/dL)138.1 ± 35.6137.9 32.90.981
 HDL-cholesterol (mg/dL)53.2 ± 10.749.3 10.90.154
 TG (mg/dL)132.4 ± 72.0173.2 97.00.063
Oxidative stress parameter
 Urinary MDA (µmol/g creatinine)1.56 ± 0.852.08 1.160.018

Data are expressed as the mean ± SE or the number (%).
value by 2-sample -test or chi-square test.
VFA: visceral fat area; SFA: subcutaneous fat area; DXA: dual-energy X-ray absorptiometry; ALT: alanine aminotransferase; GGT: -glutamyl transferase; CRP: C-reactive protein; LDL: low-density lipoprotein; HDL: high-density lipoprotein; TG: triglyceride; MDA: malondialdehyde.
One MET is roughly equivalent to 1 kcal/min for a person weighing 60 kg.
value by Mann-Whitney test.