Table 3.

Cardiac para-clinical finding of patients stratified by P-R interval time

Variable			Normal P-R interval (N = 142)	Prolonged P-R interval (N = 106)	Statistical test & p-value
ECG	HR (BPM)		75.11 ± 15.03	71.08 ± 14.40	0.042*
	RBBB		5 (3.5)	2 (1.9)	0.702**
	ST depression ≥ 0.1mv		94 (66.2)	75 (70.8)	0.446**
	Number of lead with STD ≥ 0.1mv		2.30 ± 2.64	2.87 ± 2.62	0.084*
	Non ischemic change		40 (28.2)	29 (27.5)	0.924**
	Inverted T wave		33 (23.2)	12 (11.5)	0.017**
	Inferior STD		7 (5.0)	3 (2.5)	0.406**
	Lateral STD		4 (2.8)	1 (0.9)	0.396**
	Anterior STD		41 (28.8)	48 (45.4)	0.008*
	Inferolateral STD		3 (2.1)	3 (2.5)	0.716**
	Antrolateral STD		12 (8.5)	10 (9.7)	0.788**
	Inferoanterolateral STD		2 (1.4)	0 (0.0)	0.509***
Echocardiography	LVEF		50.43 ± 7.36	50.63 ± 7.65	0.605*
	Diastolic dysfunction (N = 241)	No	75 (54.3)	56 (54.4)	0.479***
		Grade I	61 (44.2)	44 (42.7)
		Grade II	1 (0.7)	3 (2.9)
		Grade III	1 (0.7)	0 (0.0)
	MR (N = 239)	No	48 (35.0)	34 (33.3)	0.469**
		Mild	63 (46.0)	48 (47.1)
		Moderate	23 (16.8)	14 (13.7)
		Severe	3 (2.2)	6 (5.9)
CAG (N = 246)	Normal CAG		19 (13.6)	3 (2.8)	0.003**
	SVD		19 (13.6)	18 (17.0)	0.459**
	2VD		44 (31.4)	28 (26.4)	0.392**
	3VD		36 (25.7)	40 (37.7)	0.043**
	MVD		6 (4.3)	3 (2.8)	0.547**
	Left main lesion		0 (0.0)	3 (2.8)	0.045***
	Minimal CAD		16 (11.4)	11 (10.4)	0.794**
	Gensini score		41.5 ± 34.30	44.32 ± 44.69	0.087*
	SYNTAX score		35.90 ± 45.15	44.01 ± 43.24	0.032*

* Mann-Whitney u test **Chi square ***Fisher exact test