Relationship between a Prolonged Corrected QT Interval and Mortality in Patients Presenting with Syncope at the Emergency Department

Table 2

Relationship between QTc and gender, chronic diseases, and mortality.

	Positive		Negative
		Median (IQR)		Median (IQR)
CAD	47	442 (417-462)	118	422 (398-447)	0.009
HT	80	433 (408.5-461.5)	85	422 (398-447)	0.061
DM	40	430 (406.5-459.5)	125	425 (398-454)	0.390
Stroke	11	442 (401-465.5)	154	425 (402-454)	0.620
COPD	21	440 (410-469)	144	424.5 (399-454)	0.027
Thyroid disease	6	465 (445-475)	59	425 (401.5-454)	0.282
Mortality	21	470 (444-485)	144	422.5 (398.5-446.5)	<0.001