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Table 3 The association between total and regional body composition data and QTc interval in male

From: Different body parts’ fat mass and corrected QT interval on the electrocardiogram: The Fasa PERSIAN Cohort Study

  Unadjusted Multi-variable adjusted
QTc (continuous) QTc > 450 ms QTc (continuous) QTc > 450 ms
Beta P-value OR (95%CI) P-value Beta P-value OR (95%CI) P-value
Total         
Fat mass (%) 0.142 < 0.001 1.03 (1.01–1.06) 0.015 0.125 < 0.001 1.03 (1.00–1.06) 0.057
FMI (kg/m2) 0.137 < 0.001 1.08 (1.01–1.15) 0.029 0.122 < 0.001 1.07 (0.99–1.15) 0.078
FFMI (kg/m2) 0.038 0.154 1.00 (0.92–1.08) 0.893 0.029 0.331 0.99 (0.91–1.09) 0.885
FM:FFM ratio 0.149 < 0.001 8.32 (1.70–40.73) 0.009 0.131 < 0.001 6.66 (1.11–40.13) 0.038
Arms         
Fat mass (%) 0.158 < 0.001 1.02 (1.01–1.04) 0.005 0.145 < 0.001 1.02 (1.00–1.04) 0.018
FMI (kg/m2) 0.124 < 0.001 1.74 (0.98–3.09) 0.060 0.113 < 0.001 1.73 (0.92–3.27) 0.090
FFMI (kg/m2) 0.008 0.773 0.84 (0.50–1.39) 0.490 0.007 0.813 0.88 (0.49–1.57) 0.659
FM:FFM ratio 0.157 < 0.001 12.61 (2.09–76.09) 0.006 0.142 < 0.001 11.31 (1.51–84.94) 0.018
Legs         
Fat mass (%) 0.104 < 0.001 1.01 (1.00–1.03) 0.102 0.076 0.0101 1.01 (0.99–1.03) 0.271
FMI (kg/m2) 0.107 < 0.001 1.21 (0.95–1.54) 0.117 0.090 0.002 1.19 (0.91–1.56) 0.202
FFMI (kg/m2) 0.064 0.015 1.04 (0.85–1.28) 0.679 0.081 0.007 1.09 (0.87–1.38) 0.443
FM:FFM ratio 0.106 < 0.001 5.55 (0.76–40.64) 0.092 0.079 0.008 3.87 (0.40–37.84) 0.245
Trunk         
Fat mass (%) 0.152 < 0.001 1.03 (1.01–1.05) 0.008 0.137 < 0.001 1.03 (1.00–1.05) 0.032
FMI (kg/m2) 0.148 < 0.001 1.14 (1.03–1.27) 0.014 0.132 < 0.001 1.12 (1.00–1.27) 0.053
FFMI (kg/m2) 0.025 0.346 0.97 (0.83–1.14) 0.702 − 0.004 0.900 0.94 (0.78–1.12) 0.457
FM:FFM ratio 0.160 < 0.001 6.76 (1.84–24.79) 0.004 0.145 < 0.001 5.58 (1.31–23.72) 0.020
  1. B = beta coefficient, QTc = Corrected QT interval by Bazett's formula, OR = Odds ratio, CI = Confidence interval. Statistically significant P-values are bolded