Comparison of Intracranial and Extracranial Carotid Artery Calcifications between Obstructive Sleep Apnea Patients and Healthy Individuals: A Combined Cone-Beam Computed Tomography and Polysomnographic Study
Table 3
Comparison of extra and intracranial carotid artery calcifications between OSA and control group.
Group
Chi-square analysis
Control
OSA
Total
n
(%)
n
(%)
n
(%)
Chi-square
Right intracranial
No calcification
88
93.6
62
65.3
150
79.4
—
0.0001
1
0
0
17
17.9
17
9
2
6
6.4
8
8.4
14
7.4
3
0
0
7
7.4
7
3.7
4
0
0
1
1.1
1
0.5
Total patients
94
100
95
100
189
100
Left intracranial
No calcification
89
94.7
69
72.6
158
83.6
—
0.0001
1
1
1.1
16
16.8
17
9
2
4
4.3
4
4.2
8
4.2
3
0
0
5
5.3
5
2.6
4
0
0
1
1.1
1
0.5
Total patients
94
100
95
100
189
100
Unilateral-bilateral intracranial
No calcification
88
93.6
52
54.7
140
74.1
38.1
0.001
Unilateral
2
2.1
28
29.5
30
15.9
Bilateral
4
4.3
15
15.8
19
10.1
Total patients
94
100
95
100
189
100
Right extracranial
No calcification
86
91.5
77
81.1
163
86.2
—
0.178
1
3
3.2
3
3.2
6
3.2
2
4
4.3
9
9.5
13
6.9
3
1
1.1
4
4.2
5
2.6
4
0
0
2
2.1
2
1.1
Total patients
94
100
95
100
189
100
Left extracranial
No calcification
90
95.7
78
82.1
168
88.9
—
0.034
1
1
1.1
3
3.2
4
2.1
2
2
2.1
10
10.5
12
6.3
3
1
1.1
3
3.2
4
2.1
4
0
0
1
1.1
1
0.5
Total patients
94
100
95
100
189
100
Unilateral-bilateral extracranial
No calcification
84
90.3
67
70.5
151
80.3
11.8
0.003
Unilateral
6
6.5
21
22.1
27
14.4
Bilateral
3
3.2
7
7.4
10
5.3
Total patients
93
100
95
100
188
100
At least one carotid artery calcification
No calcification
81
86.2
41
43.2
122
64.6
38.2
0.0001
Calcification
13
13.8
54
56.8
67
35.4
Values in boldface shows statistical significance ().
