Table 1.

Basic information of patients and controls

	Patients (n = 12)	Controls (n = 12)	Statistics
Variables	Mean ± SD	Mean ± SD	P values
Sex (M:F)	05:07	07:05	0.414
Age (years)	42.83 ± 8.80	39.33 ± 10.82	0.394
Education	9.83 ± 4.09	12.42 ± 3.42	0.107
Medical history, n (%)
Hypertension	2 (16.7)	2 (16.7)	1
Dyslipidemia	3 (25.0)	1 (8.3)	0.273
Smoking history	3 (25.0)	2 (16.7)	0.615
Alcohol taking	1 (8.3)	2 (16.7)	0.537
Suzuki Stage
Left
1	2 (16.7)
2	2 (16.7)
3	5 (41.7)
4	2 (16.7)
5	1 (8.3)
6	0
Right
1	1 (8.3)
2	1 (8.3)
3	8 (66.7)
4	1 (8.3)
5	1 (8.3)
6	0

Values are numbers of cases (%) unless otherwise indicated. Mean values are presented with SDs

Abbreviations: F female, M male, SD standard deviation