Table 5. The association between ABO blood types and metastasis in patients with cutaneous malignant melanoma: Univariate and multivariate logistic regression analyses.
| M0 | M1 | |||||
| ABO blood type | N = 378 (%) | N = 104 (%) | Univariate OR (95% CI) | P value | Multivariate OR (95% CI)1 | P value1 |
| O | 87 (23.0) | 18 (17.3) | 1 (reference) | 1 (reference) | ||
| A | 128 (33.9) | 50 (48.1) | 1.888 (1.032−3.453) | 0.039 | 2.004 (1.032−3.889) | 0.040 |
| B | 133 (35.2) | 30 (28.8) | 1.090 (0.573−2.075) | 0.793 | 1.070 (0.514−2.226) | 0.857 |
| AB | 29 (7.7) | 7 (6.7) | 1.167 (0.443−3.074) | 0.755 | 1.019 (0.340−3.049) | 0.973 |
1
Adjusted by age, gender, smoking status and alcohol consumption. CI, confidence interval; OR, odds ratio; M0, no metastasis; M1, metastasis.