Table 3. Clinical Characteristics Associated with Positive CTA Results.
| Clinical Feature | Patients | CTA Results* | Univariable | Multivariable | |||
|---|---|---|---|---|---|---|---|
| Positive | Negative | OR | P | Adj. OR | P | ||
| Age (yr) | 0.545 | 0.246 | 0.762 | 0.53 | |||
| ≤60 | 43 | 25 (58.1) | 18 (41.9) | ||||
| ≥61 | 68 | 43 (63.2) | 25 (36.8) | ||||
| Sex | 0.965 | 0.942 | NA | NA | |||
| Female | 50 | 30 (60.0) | 20 (40.0) | ||||
| Male | 61 | 38 (62.3) | 23 (37.7) | ||||
| Bleeding type | 2.546 | 0.143 | 1.975 | 0.194 | |||
| Upper | 31 | 19 (61.3) | 12 (38.7) | ||||
| Lower | 80 | 49 (61.3) | 31 (38.8) | ||||
| Bleeding episode | 0.537 | 0.362 | NA | NA | |||
| Initial | 95 | 56 (58.9) | 39 (41.1) | ||||
| Recurrent | 16 | 12 (75.0) | 4 (25.0) | ||||
| Recent bleeding | 1.357 | 0.542 | NA | NA | |||
| Present | 67 | 42 (62.7) | 25 (37.3) | ||||
| Absent | 44 | 26 (59.1) | 18 (40.9) | ||||
| Massive bleeding | 9.097 | 0.007 | 11.506 | <0.001† | |||
| Present | 30 | 27 (90.0) | 3 (10.0) | ||||
| Absent | 81 | 41 (50.6) | 40 (49.4) | ||||
| Severe anemia | 1.816 | 0.284 | NA | NA | |||
| Present | 46 | 36 (78.3) | 10 (21.7) | ||||
| Absent | 65 | 32 (49.2) | 33 (50.8) | ||||
| Diabetes | 1.364 | 0.684 | NA | NA | |||
| Present | 19 | 13 (68.4) | 6 (31.6) | ||||
| Absent | 92 | 55 (59.8) | 37 (40.2) | ||||
| Hypertension | 0.322 | 0.293 | NA | NA | |||
| Present | 46 | 26 (56.5) | 20 (43.5) | ||||
| Absent | 65 | 42 (64.6) | 23 (35.4) | ||||
| CVD | 0.476 | 0.3 | NA | NA | |||
| Present | 16 | 8 (50.0) | 8 (50.0) | ||||
| Absent | 95 | 60 (63.2) | 35 (36.8) | ||||
| Vascular disease | 0.611 | 0.675 | NA | NA | |||
| Present | 54 | 32 (59.3) | 22 (40.7) | ||||
| Absent | 57 | 36 (63.2) | 21 (36.8) | ||||
*Data are numbers of patients, with percentages in parentheses, †Statistically significant variables. Adj. OR = adjusted odds ratio, CTA = CT angiography, CVD = cerebrovascular disease, NA = not available (values are not presented for factors that were not included in multivariate analyses)