Research Article
CTA Characteristics of the Circle of Willis and Intracranial Aneurysm in a Chinese Crowd with Family History of Stroke
Table 7
The prevalence of intracranial aneurysm with 95% CI by age and gender.
| Age | Male | Female | Total | | Aneurysms | | Aneurysms | | Aneurysms | Volunteers, | Participants, | Proportion | Volunteers, | Participants, | Proportion | Volunteers, | Participants, | Proportion | | % (95% CI) | | % (95% CI) | | % (95% CI) |
| Total | 153 | 15 | 9.8 (5.0–14.6) | 128 | 14 | 10.9 (5.5–16.4) | 281 | 29 | 10.3 (6.7–13.9) | <45 y | 43 | 6 | 14.0 (3.2–24.7) | 33 | 3 | 9.1 (2.0–24.0) | 76 | 9 | 11.8 (4.4–19.3) | 45–64 y | 93 | 8 | 8.6 (2.8–14.4) | 89 | 11 | 12.4 (5.4–19.3) | 182 | 19 | 10.4 (6.0–14.9) | ≥65 y | 17 | 1 | 5.9 (0–29.0) | 6 | 0 | — (0–46.0) | 23 | 1 | 4.3 (0–22.0) | value of trend | | | 0.27 | | | 0.76 | | | 0.38 |
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represents the comparison of <45 y group and 45–64 y group.
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