The Egyptian Heart Journal

Table 3 Subgroup analysis of the ECG parameters in patients with ESRD and patients with CKD

From: Electrocardiographic substrates of arrhythmias in patients with end-stage and chronic kidney diseases: a case–control study

	Gender			HTN			DM
	Male	Female	P	Yes	No	P	Yes	No	p
ESRD	n=38	n=37		n=52	n=23		n=25	n=50
QTc dispersion	90.5 ± 34.1	85.8 ± 29.8	0.445	89.3 ± 32.0	85.7 ± 32.2	0.904	89.9 ± 31.8	87.3 ± 32.2	0.665
P-WD	51.7 ± 18.4	44.2 ± 16.3	0.045	44.5 ± 17.0	55.9 ± 17.0	0.008	51.6 ± 15.8	46.2 ± 18.4	0.188
Tp-e/QTc	0.6 ± 0.3	0.7 ± 0.3	0.252	0.7 ± 0.3	0.6 ± 0.4	0.135	0.6 ± 0.3	0.7 ± 0.3	0.196
CKD	n=27	n=48		n=49	n=26		n=27	n=48
QTc dispersion	85.3 ± 30.8	72.2 ± 30.4	0.068	79.2 ± 31.9	72.7 ± 29.3	0.385	76.1 ± 32.6	77.4 ± 30.4	0.720
P-WD	51.2 ± 24.0	43.6 ± 21.0	0.272	47.8 ± 24.2	43.6 ± 18.3	0.772	48.0 ± 24.5	45.4 ± 21.2	0.740
Tp-e/QTc	0.8 ± 0.3	0.6 ± 0.3	0.043	0.7 ± 0.3	0.62 ± 0.3	0.208	0.7 ± 0.3	0.7 ± 0.3	0.699

P-WD, P wave dispersion; QTc, Corrected QT interval; Tp-e, T wave peak to end interval

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