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Table 1 Absolute values of ECG measurements

From: Problems with Bazett QTc correction in paediatric screening of prolonged QTc interval

  Girls Boys
Heart rate QTcBazett QTcFridericia QTcFramingham Heart rate QTcBazett QTcFridericia QTcFramingham
Supine 78.00 ± 10.42 426.27 ± 15.36 408.3 ± 13.77 408.73 ± 13.01 76.96 ± 10.55 424.32 ± 16.26 407.27 ± 14.05 407.69 ± 13.17
Sitting 92.72 ± 9.55 436.93 ± 14.48 406.47 ± 12.98 405.47 ± 11.69 88.98 ± 10.36 433.00 ± 15.46 405.60 ± 13.44 405.17 ± 12.25
Standing 101.88 ± 10.19 445.9 ± 15.68 408.27 ± 13.57 405.08 ± 11.85 100.01 ± 10.75 443.97 ± 16.07 407.84 ± 13.81 405.13 ± 12.22
  1. For individual postural positions, the table shows heart rate (in beats per minute) and QTc intervals according to the 3 considered correction formulas (in milliseconds). The only significant differences between girls and boys were for the sitting heart rate (p = 0.0007) and for the sitting Bazett corrected QTc intervals (p = 0.018). Note also that median values (not shown) were practically identical to the presented mean values