Table 2.
Distribution of BS symptoms in BS and non-BS patients.
| Variable | Non-BS | BS | P valuea |
|---|---|---|---|
| Black face with black eyelid | 1 (3.2) | 4 (12.9) | 0.354* |
| Purpura in the sclera | 5 (16.1) | 2 (6.5) | 0.425* |
| Purpura | 6 (19.4) | 9 (29.0) | 0.554* |
| Cyanotic lips | 3 (9.7) | 10 (32.3) | 0.059* |
| Site-fixed headache | 2 (6.5) | 5 (16.1) | 0.425* |
| Headache with a pulling sensation | 1 (3.2) | 3 (9.7) | 0.612* |
| Fishy-smelling mouth odor | 15 (48.4) | 11 (35.5) | 0.440* |
| Tongue purple in color | 2 (6.5) | 13 (41.9) | 0.001 |
| Tongue with red, white, or black spots as well as thornlike protrusions on its surface | 0 (0.0) | 4 (12.9) | 0.039 |
| Bloated feeling in the chest and hypochondriac region | 1 (3.2) | 0 (0.0) | 0.313* |
| Rough pulse | 2 (6.5) | 20 (64.5) | <0.001 |
a P value using a chi-square test or Fisher's exact test (∗) for categorical variables.