Table 1

Baseline characteristics of 205 elderly patients with aortic stenosis, and the determinants of surgical treatment

Variable		Total				Univariate analysis
Variable		Total		Medical (n)	Surgical (n (%))	RR	95% CI
Total	205	111	94 (46)
Age
<80 years	138	60	78 (57)
⩾80 years	67	51	16 (24)	0.42	0.27 to 0.66
Sex
Male	73	35	38 (52)
Female	132	76	56 (42)	0.81	0.61 to 1.10
Syncope
No	178	101	77 (43)
Yes	27	10	17 (63)	1.46	1.04 to 2.03
Angina or dyspnoea
NYHA I/II	70	55	15 (21)
NYHA III/IV	135	56	79 (59)	2.73	1.71 to 4.37
Heart failure
No	147	80	67 (46)
Yes	58	31	27 (47)	1.02	0.74 to 1.42
Previous infarct
No	169	85	84 (50)
Yes	36	26	10 (28)	0.56	0.32 to 0.97
LVH on ECG
No	119	73	46 (39)
Yes	86	38	48 (56)	1.44	1.08 to 1.93
Atrial fibrillation
No	170	86	84 (49)
Yes	35	25	10 (29)	0.58	0.34 to 1.00
AS ⩾75 mm Hg
No	97	80	17 (18)
Yes	108	31	77 (71)	4.07	2.60 to 6.37
LV function
Normal	130	66	64 (49)
Impaired	75	45	30 (40)	0.81	0.59 to 1.13
Mitral regurgitation
Grade 0 or I	111	63	48 (43)
Grade II	94	48	46 (49)	1.13	0.84 to 1.52

AS, aortic stenosis (maximum gradient across aortic valve); CI, confidence interval; LV, left ventricular; LVH, left ventricular hypertrophy; NYHA, New York Heart Association class; RR, risk ratio.