Baseline characteristics and risk factors stratified by age classes.
Age classes
16–29 years
30–39 years
40–44 years
Total
Patient number (%)
52 (16.0)
141 (43.5)
131 (40.4)
324 (100)
Male/female
27/25
71/70
64/67
162/162
Risk factors (%)
Smoking
17 (32.7)
51 (36.2)
62 (47.3)
130 (40.1)
Hypertension
2 (3.8*)
25 (17.7*)
41 (31.3)
68 (21)
Oral contraceptives
12 (23.1)
29 (20.6)
27 (20.6)
68 (21°)
Hypercholesterolemia
5 (9.6†)
29 (20.6)
31 (23.7)
65 (20.1)
Migraine
11 (21.2)
29 (20.6†)
15 (11.5)
55 (17)
Hyperhomocysteinemia
10 (19.2)
23 (16.3)
18 (13.7)
51 (15.7)
Previous vascular events
7 (13.5)
20 (14.2)
21 (16)
48 (14.8)
Family history of stroke
2 (3.8)
10 (7.1)
13 (9.9)
25 (7.7)
Obesity
2 (3.8)
4 (2.8†)
13 (9.9)
19 (5.9)
Others°°
< 0.05 < 0.01.
°When tested in women is 42% of the sample.
°°Other risk factors with frequency below 5% were trauma 12 (3.7%); diabetes mellitus 11 (3.4%); heavy drinking 10 (3.1%); illicit drug use 5 (1.5%); ischemic cardiopathy 5 (1.5%); atrial fibrillation 4 (1.2%); pregnancy/puerperium 6 (1.9%).