Table 4.

Univariate and multivariate analyses of the risk factors for the presence of silent lacunar infarction in patients with transient ischemic attack according to age.

Risk factors	Univariate OR (95% CI)	P	Multivariate OR (95% CI)	P
>60 years old (n=305)
Age	1.151 (1.098, 1.205)	<0.001	1.145 (1.080, 1.213)	<0.001
Gender	0.737 (0.429, 1.268)	0.271	0.928 (0.451, 1.910)	0.840
Hypertension	2.247 (1.274, 3.964)	0.005	1.455 (0.720, 2.941)	0.296
Diabetes	1.194 (0.669, 2.131)	0.547	1.056 (0.528, 2.114)	0.877
Hyperlipidemia	2.111 (1.209, 3.687)	0.009	2.011 (1.023, 3.956)	0.043
Smoking	0.550 (0.235, 1.287)	0.168	1.602 (0.468, 5.484)	0.453
Alcohol drinking	0.373 (0.144, 0.967)	0.043	0.597 (0.156, 2.288)	0.451
Heart diseases	1.032 (0.585, 1.823)	0.913	0.414 (0.194, 0.883)	0.022
Carotid stenosis	3.440 (1.867, 6.337)	<0.001	2.411 (1.188, 4.894)	0.015
Intracranial stenosis	1.792 (1.022, 3.144)	0.042	1.396 (0.703, 2.771)	0.341
45–60 years old (n=150)
Age	1.119 (1.030, 1.217)	0.008	1.041 (0.939, 1.154)	0.446
Gender	0.468 (0.241, 0.907)	0.024	0.544 (0.211, 1.404)	0.209
Hypertension	3.118 (1.586, 6.129)	0.001	2.115 (0.937, 4.775)	0.071
Diabetes	2.203 (0.957, 5.068)	0.063	2.560 (0.937, 6.996)	0.067
Hyperlipidemia	3.643 (1.818, 7.299)	<0.001	2.606 (1.133, 5.993)	0.024
Smoking	1.353 (0.627, 2.920)	0.442	0.930 (0.272, 3.183)	0.908
Alcohol drinking	1.402 (0.607, 3.238)	0.428	1.475 (0.389, 5.590)	0.568
Heart diseases	1.520 (0.633, 3.650)	0.349	1.176 (0.410, 3.372)	0.763
Carotid stenosis	2.374 (1.191, 4.732)	0.014	1.371 (0.581, 3.233)	0.471
Intracranial stenosis	2.583 (1.196, 5.580)	0.016	2.267 (0.910, 5.646)	0.079