Table 2. Demographic Comparison of Patients Without Anemia to Patients With Anemia.
| Patients without anemia (N = 389), % | Patients with anemia (N = 108), % | P value | |
|---|---|---|---|
| Male | 44.5 | 20.3 | < 0.0001 |
| Female | 55 | 79.6 | < 0.0001 |
| Race | |||
| Caucasian | 77.9 | 56.5 | < 0.0001 |
| African-American | 7.5 | 24 | < 0.0001 |
| Hispanic | 7.2 | 5.5 | < 0.0001 |
| Asian | 2.3 | 2.8 | < 0.0001 |
| Other | 5.1 | 3.7 | < 0.0001 |
| Social history | |||
| Current smoker | 12.1 | 10.2 | 0.5873 |
| Former smoker | 26.9 | 32.4 | 0.2689 |
| Never smoker | 60.9 | 57.4 | 0.5092 |
| Active alcohol use | 67.8 | 54.6 | 0.0846 |
| Family history of hereditary anemia | |||
| Sickle cell anemia | 0.3 | 0 | 0.5691 |
| Thalassemia | 0 | 0 | |
| RBC membrane defect | 0 | 0 | |
| Other | 0 | 0 | |
| No family history of anemia | 99.7 | 100 | 0.5691 |
| Personal history of anemia | |||
| Sickle cell | 0 | 0.93 | 0.0572 |
| Thalassemia | 0.3 | 0.93 | 0.3803 |
| RBC membrane defect | 0 | 0 | |
| No personal history of anemia | 97.4 | 67.6 | < 0.0001 |
| Other | 2.3 | 30.5 | < 0.0001 |