Comparison of patient characteristics in 3 different groups: type I, type IIa, and types with CVDa
| Type I | Type IIa | Types with CVD | |
|---|---|---|---|
| No. | 22 | 8 | 13 |
| Age (yr) | 58 (52.8–64.2) | 54 (35.5–73.7) | 52 (41.3–63.8) |
| Headaches | 4 (18.2; 2.1–34.3) | 3 (37.5; 6.2–79.5) | 4 (30.8; 5.7–55.9) |
| Hemorrhage/neurologic deficits | 0 | 0 | 8 (61.5; 35.1–88.0)b |
| Venous stenosis | 8 (36.4; 16.3–56.5)b | 8 (100%) | 11 (84.6; 65–100) |
| Loss of double peak | 7 (31.8; 12.4–51.3)c | 8 (100%)c | 9 (69.2; 44.1–94.3)c |
↵a The numbers inside the parentheses for age indicate the 95% confidence intervals. The numbers inside the parentheses for headaches, hemorrhage/neurologic deficits, venous stenosis, and loss of double peak indicate the percentage of the observed variable in the group with 95% confidence intervals.
↵b Significant difference compared with the other 2 groups.
↵c Significant difference across the 3 groups.