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Table 3 Univariate analysis of correlations to CFR and VO2peakFFM

From: Coronary microvascular function, insulin sensitivity and body composition in predicting exercise capacity in overweight patients with coronary artery disease

  Univariate correlations
  Coronary flow reserve VO2PeakFFM
  r p-value r p-value
Age −0.13 0.30 −0.38 0.0015
Echocardiography
Left ventricular ejection fraction (%) 0.20 0.10 0.33 0.008
End diastolic volume (mL/m2) −0.06 0.61 0.32 0.01
End systolic volume (mL/m2) −0.10 0.44 0.13 0.30
Coronary flow reserve (ratio) - - 0.41 0.0007
Exercise capacity
VO2peakFFM (ml/min/kg FFM(2/3)) 0.41 0.0007 - -
Respiratory exchange ratio (ratio) −0.17 0.17 −0.08 0.52
Glucose metabolism
Insulin sensitivity (ISIcomposite) 0.04 0.73 0.08 0.53
Insulin sensitivity (ISIHOMA) 0.06 0.65 0.16 0.18
Hba1c (%) 0.03 0.79 −0.30 0.014
Fasting plasma glucose (mmol/L) −0.06 0.64 −0.22 0.08
Fasting plasma insulin (pmol/L) −0.16 0.20 −0.10 0.46
Glucose tolerance (2 h-PG) (mmol/L) −0.20 0.09 −0.20 0.10
Beta cell function - Btotal (nL/kg/min) 0.11 0.36 −0.03 0.84
β-cell function adjusted for insulin sensitivity (Di) 0.23 0.07 0.08 0.56
Body composition
BMI (kg/m2) −0.15 0.22 −0.05 0.67
Waist-to-hip-ratio 0.07 0.59 0.02 0.88
Body fat (%) −0.21 0.09 −0.29 0.02
Visceral fat (mm3) (n = 37) −0.22 0.17 −0.28 0.10
Central-to-peripheral fat ratio 0.13 0.30 −0.18 0.16
  1. VO2peak FFM peak rate of oxygen consumption per kilogram of fat free body mass, D i disposition index, BMI Body mass index