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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
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BMC Pediatrics

ISSN: 1471-2431

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