Comparison of hypoplastic vertebral artery frequency between study group and normal healthy people
| HVA (+) | HVA (–) | p Value* | |
|---|---|---|---|
| ACS, anterior circulation stroke; HVA, hypoplastic vertebral artery; PCS, posterior circulation stroke;+, HVA present; −, HVA absent. | |||
| Values are number (%) of patients. | |||
| *By χ2 test. | |||
| †By Bonferroni method (significant value is <0.017). | |||
| ACS group (n = 303) | 82 (27.1) | 221 (72.9) | <0.001 |
| PCS group (n = 226)† | 103 (45.6) | 123 (54.4) | |
| ACS group (n = 303) | 82 (27.1) | 221 (72.9) | 0.869 |
| Normal healthy people (n = 306) | 81 (26.5) | 225 (73.5) | |
| PCS group (n = 226)† | 103 (45.6) | 123 (54.4) | <0.001 |
| Normal healthy people (n = 306) | 81 (26.5) | 225 (73.5) | |