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Table 1 Baseline characteristic of subjects according to gender

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

Variables Male (n = 1415) Female (n = 1802) P-value
Age (years) 47.39 ± 9.23 48.12 ± 9.55 0.030a
BMI (kg/m2) 24.19 ± 4.41 26.86 ± 4.81 < 0.001a
SBP (mmHg) 108.31 ± 16.99 109.35 ± 18.56 0.097a
DBP (mmHg) 72.43 ± 11.85 72.46 ± 11.94 0.933a
TC (mg/dL) 178.13 ± 38.64 189.01 ± 39.25 < 0.001a
HDL (mg/dL) 43.49 ± 9.16 49.62 ± 10.31 < 0.001a
Current smoker 794 (56.1) 68 (3.8) < 0.001b
Coronary heart disease 80 (5.7) 206 (11.4) < 0.001b
Diabetes mellitus 104 (7.3) 302 (16.8) < 0.001b
Hypertension 141 (10.0) 497 (27.6) < 0.001b
Selected medications 965 (68.2) 1195 (66.3) 0.259b
Heart rate (bpm) 65.61 ± 10.79 74.51 ± 11.76 < 0.001a
QRS duration (ms) 105.31 ± 9.23 90.87 ± 6.35 < 0.001a
QT interval (ms) 403.33 ± 37.72 396.61 ± 42.38 < 0.001a
Bazett's QTc interval (ms) 418.53 ± 32.85 438.65 ± 39.77 < 0.001a
Fridericia's QTc interval (ms) 413.12 ± 30.93 423.92 ± 37.95 < 0.001a
  1. Data presented as mean ± standard deviation, number (frequency)
  2. BMI = body mass index, SBP = systolic blood pressure, DBP = Diastolic blood pressure, TC = Total cholesterol, HDL = High density lipoprotein, QTc = corrected QT interval
  3. P-value reported as the result of aindependent-samples t-test and bChi-square. Statistically significant P-values are bolded (P-value < 0.05)