Table 1

Anthropometric and cardiometabolic features of young and middle-aged Japanese women

YoungMiddle-agedP value
n=210n=148
AT-IR3.5±2.73.2±2.10.417
Age (years)20.7±1.249.8±3.6<0.001
Body mass index (kg/m2)20.3±2.322.0±2.8<0.001
Waist circumference (cm)71.2±5.778.7±8.1<0.001
Fat mass index (kg/m2)5.5±1.76.7±2.4<0.001
Trunk/leg fat ratio1.25±0.251.64±0.39<0.001
Fasting glucose (mg/dL)82±789±14<0.001
Fasting insulin (μU/mL)6.0±3.15.4±2.80.070
Fasting FFA (mEq/L)0.56±0.220.60±0.230.118
HbA1c (%)5.2±0.25.5±0.4<0.001
HOMA-IR1.22±0.821.21±0.710.896
Triglyceride (mg/dL)58±3881±36<0.001
Cholesterol (mg/dL)182±29224±35<0.001
HDL cholesterol (mg/dL)74±1377±160.030
Non-HDL cholesterol
(mg/dL)
108±25147±33<0.001
LDL cholesterol (mg/dL)97±25130±30<0.001
Apolipoprotein A1
(mg/dL)
164±20178±22<0.001
Apolipoprotein B (mg/dL)68±1593±19<0.001
AST (U/L)*18±521±130.003
ALT (U/L)*13±620±18<0.001
GGT (U/L)*14±422±20<0.001
Systolic blood pressure (mm Hg)108±11121±16<0.001
Diastolic blood pressure (mm Hg)63±874±11<0.001
  • Mean±SD

  • *logarithmically transformed for analyses.

  • ALT, alanine aminotransferase; AST, aspartate aminotransferase; AT-IR, adipose tissue insulin resistance; FFA, free fatty acid; GGT, γ-glutamyl-transpeptidase; HbA1c, hemoglobin A1c; HDL, high-density lipoprotein; HOMA-IR, homeostatic model assessment of insulin resistance; LDL, low-density lipoprotein.