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

Yazdanpanah, Mohammad Hosein; Bahramali, Ehsan; Naghizadeh, Mohammad Mehdi; Farjam, Mojtaba; Mobasheri, Maryam; Dadvand, Shiva

doi:10.1186/s12872-021-02095-2

BMC Cardiovascular Disorders

Table 2 The mean and standard deviation of total and regional body composition data and BMI in total, normal QTc and prolonged QTc interval groups according to gender

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

	Male				Female
	Total (n = 1415)	QTc ≤ 450 ms (n = 1281)	QTc > 450 ms (n = 134)	P-value	Total (n = 1802)	QTc ≤ 470 ms (n = 1621)	QTc > 470 ms (n = 181)	P-value
Total
Fat mass (%)	19.50 ± 7.10	19.35 ± 7.04	20.92 ± 7.50	0.015	34.11 ± 6.99	34.23 ± 6.89	33.07 ± 7.72	0.034
FMI (kg/m²)	4.97 ± 2.56	4.93 ± 2.53	5.43 ± 2.73	0.028	9.57 ± 3.46	9.61 ± 3.44	9.22 ± 3.59	0.153
FFMI (kg/m²)	19.17 ± 2.26	19.18 ± 2.25	19.15 ± 2.30	0.893	17.61 ± 1.80	17.61 ± 1.79	17.63 ± 1.82	0.883
FM:FFM ratio	0.25 ± 0.11	0.25 ± 0.11	0.28 ± 0.12	0.009	0.53 ± 0.16	0.54 ± 0.16	0.51 ± 0.17	0.056
Arms
Fat mass (%)	35.63 ± 11.43	35.36 ± 11.33	38.25 ± 12.10	0.005	70.75 ± 18.18	71.00 ± 17.99	68.47 ± 19.66	0.075
FMI (kg/m²)	0.50 ± 0.27	0.50 ± 0.27	0.54 ± 0.28	0.056	1.07 ± 0.52	1.07 ± 0.52	1.03 ± 0.53	0.279
FFMI (kg/m²)	2.15 ± 0.35	2.15 ± 0.35	2.13 ± 0.36	0.490	1.78 ± 0.23	1.78 ± 0.23	1.78 ± 0.23	0.910
FM:FFM ratio	0.22 ± 0.09	0.22 ± 0.09	0.24 ± 0.10	0.005	0.58 ± 0.22	0.58 ± 0.22	0.55 ± 0.23	0.121
Legs
Fat mass (%)	33.58 ± 11.50	33.42 ± 11.43	35.12 ± 12.08	0.102	80.65 ± 10.16	80.76 ± 10.08	79.63 ± 10.82	0.155
FMI (kg/m²)	1.40 ± 0.70	1.39 ± 0.70	1.49 ± 0.78	0.117	4.06 ± 1.19	4.07 ± 1.19	3.98 ± 1.22	0.340
FFMI (kg/m²)	6.53 ± 0.86	6.52 ± 0.86	6.56 ± 0.91	0.679	5.82 ± 0.67	5.82 ± 0.67	5.81 ± 0.69	0.745
FM:FFM ratio	0.21 ± 0.09	0.21 ± 0.09	0.22 ± 0.09	0.092	0.69 ± 0.14	0.69 ± 0.14	0.67 ± 0.15	0.183
Trunk
Fat mass (%)	21.46 ± 8.33	21.27 ± 8.26	23.29 ± 8.75	0.007	29.59 ± 8.34	29.75 ± 8.24	28.20 ± 9.10	0.018
FMI (kg/m²)	3.09 ± 1.62	3.05 ± 1.60	3.41 ± 1.70	0.014	4.45 ± 1.82	4.47 ± 1.81	4.22 ± 1.90	0.076
FFMI (kg/m²)	10.49 ± 1.12	10.50 ± 1.12	10.46 ± 1.12	0.702	10.02 ± 0.96	10.02 ± 0.97	10.05 ± 0.95	0.659
FM:FFM ratio	0.29 ± 0.14	0.28 ± 0.13	0.32 ± 0.14	0.004	0.44 ± 0.17	0.44 ± 0.17	0.41 ± 0.17	0.029
BMI (kg/m²)	24.19 ± 4.41	23.91 ± 4.47	24.47 ± 4.80	0.170	26.86 ± 4.81	27.07 ± 4.96	26.6 ± 5.12	0.329

QTc = corrected QT interval by Bazett formula. P-value reported as the result of independent-samples t-test between normal and prolonged QTc interval groups. Statistically significant P-values are bolded (P-value< 0.05)

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