		Groups
		Cases		Control		Total		Chi-square
		N	%	N	%	N	%	X²	P-value
DM	Yes	22	48.89	13	28.89	35	38.89	2.992	0.084
DM	No	23	51.11	32	71.11	55	61.11	2.992	0.084
HTN	Yes	33	73.33	26	57.8	59	65.56	1.771	0.183
HTN	No	12	26.67	19	42.2	31	34.44	1.771	0.183
IHD	Yes	14	31.11	12	26.7	26	28.89	0.054	0.816
IHD	No	31	68.89	33	73.3	64	71.11	0.054	0.816
HF	Yes	9	20.00	9	20.00	18	20.00	0.000	1.00
HF	No	36	80.00	36	80.00	72	80.00	0.000	1.00
AF	Yes	6	13.33	2	4.44	8	8.89	2.195	0.138
AF	No	39	86.67	43	95.56	82	91.11	2.195	0.138
PVD	Yes	3	6.67	1	2.2	4	4.44	1.047	0.306
PVD	No	42	93.33	44	97.8	86	95.56	1.047	0.306
COPD	Yes	5	11.11	11	24.44	16	17.78	1.900	0.1680
COPD	No	40	88.89	34	75.56	74	82.22	1.900	0.1680
BA	Yes	3	6.67	6	13.33	9	10.00	1.111	0.292
BA	No	42	93.33	39	86.67	81	90.00	1.111	0.292
PU	Yes	3	6.67	1	2.2	4	4.44	1.047	0.306
PU	No	42	93.33	44	97.8	86	95.56	1.047	0.306
CLD	Yes	4	8.89	6	13.3	10	11.11	0.450	0.502
CLD	No	41	91.11	39	86.7	80	88.89	0.450	0.502
RF	Yes	5	11.11	1	2.22	6	6.67	2.857	0.091
RF	No	40	88.89	44	97.78	84	93.33	2.857	0.091