Table 3.
Predictive Model of Transfusion
| AOR | p-value | |
|---|---|---|
| Age Group | ||
| <40 | Ref | |
| 40 - 49 | 0.81 (0.72-0.90) | 0.0002 |
| 50 - 59 | 0.93 (0.83-1.03) | 0.166 |
| 60 - 69 | 1.16 (1.04-1.29) | 0.008 |
| 70 - 79 | 1.64 (1.47-1.83) | <.0001 |
| 80 - 89 | 2.66 (2.39-2.97) | <.0001 |
| 90+ | 4.13 (3.60-4.74) | <.0001 |
| Sex | ||
| Male | Ref | |
| Female | 1.76 (1.73-1.79) | <.0001 |
| Race | ||
| White | Ref | |
| Black | 1.82 (1.77-1.88) | <.0001 |
| Hispanic | 1.32 (1.28-1.37) | <.0001 |
| Missing | 1.01 (0.99-1.03) | 0.2402 |
| Other | 1.45 (1.40-1.51) | <.0001 |
| Insurance | ||
| Medicare | 1.49 (1.43-1.56) | <.0001 |
| Medicaid | 1.20 (1.17-1.22) | <.0001 |
| Private | Ref | |
| Other | 1.07 (1.03-1.12) | 0.0027 |
| Uninsured | 1.31 (1.17-1.46) | <.0001 |
| Comorbidities | ||
| AIDS | 2.07 (1.27-3.38) | 0.0035 |
| Alcohol abuse | 1.54 (1.41-1.68) | <.0001 |
| Deficiency anemia | 3.26 (3.20-3.32) | <.0001 |
| Rheumatoid arthritis | 1.37 (1.32-1.42) | <.0001 |
| Chronic blood loss anemia | 3.27 (3.14-3.41) | <.0001 |
| Congestive heart failure | 1.52 (1.47-1.58) | <.0001 |
| Chronic pulmonary disease | 1.06 (1.04-1.08) | <.0001 |
| Coagulopathy | 2.04 (1.94-2.15) | <.0001 |
| DM uncomplicated | 1.17 (1.15-1.19) | <.0001 |
| DM chronic complications | 1.64 (1.55-1.73) | <.0001 |
| Drug abuse | 1.37 (1.20-1.57) | <.0001 |
| Hypertension | 1.06 (1.04-1.08) | <.0001 |
| Hypothyroidism | 1.02 (1.00-1.04) | 0.0418 |
| Liver disease | 1.43 (1.31-1.55) | <.0001 |
| Lymphoma | 1.69 (1.49-1.92) | <.0001 |
| Fluid and electrolyte disorders | 1.66 (1.62-1.70) | <.0001 |
| Other neurological disorders | 1.39 (1.33-1.44) | <.0001 |
| Obesity | 0.86 (0.84-0.88) | <.0001 |
| Paralysis | 1.52 (1.36-1.70) | <.0001 |
| Peripheral vascular disorders | 1.29 (1.23-1.35) | <.0001 |
| Pulmonary circulation disorders | 1.48 (1.38-1.60) | <.0001 |
| Renal failure | 1.79 (1.72-1.87) | <.0001 |
| Solid tumor without mets | 1.05 (0.99-1.10) | 0.0866 |
| Peptic ulcer disease | 0.96 (0.86-1.08) | 0.5082 |
| Valvular disease | 1.27 (1.23-1.31) | <.0001 |
| Weight loss | 1.93 (1.68-2.22) | <.0001 |
| Hospital characteristics | ||
| Urban vs. Rural | 0.79 (0.78-0.81) | <.0001 |
| Teaching vs non-teaching | 1.00 (0.99-1.02) | 0.6514 |
| Northeast vs. West | 1.36 (1.33-1.39) | <.0001 |
| Midwest vs. West | 0.58 (0.57-0.59) | <.0001 |
| South vs. West | 1.08 (1.05-1.10) | <.0001 |
| Small bedsize vs. Large | 1.22 (1.20-1.25) | <.0001 |
| Medium bedsize vs. Large | 1.24 (1.22-1.26) | <.0001 |
AOR=adjusted odds ratio; DM=diabetes mellitus. C-statistic = Need to update