Research Article
A New Approach towards Minimizing the Risk of Misdosing Warfarin Initiation Doses
Table 1
Categorical variables in the dataset.
| | Variable name | Values | Code | Frequency | Percentage |
| | Race | African
American | 1 | 79 | 53% | | Hispanic | 2 | 34 | 23% | | White | 3 | 18 | 12% | | Asian | 4 | 4 | 3% | | Others | 5 | 15 | 10% |
| | Gender | Male | 1 | 67 | 45% | | Female | 2 | 83 | 55% |
| | Liver disease | Yes | 1 | 3 | 2% | | No | 2 | 125 | 83% | | Missing | NA | 22 | 15% |
| | Warfarin Indication (WI) | A.fib | 1 | 25 | 17% | | DVT | 2 | 53 | 35% | | PE | 3 | 34 | 23% | | TKA/THA | 4 | 13 | 9% | | MVR | 5 | 1 | 1% | | CVA | 6 | 4 | 3% | | Others | 7 | 20 | 13% |
| | Goal INR | 2-3 | 1 | 136 | 91% | | 2.5–3.5 | 2 | 3 | 2% | | 1.8–2.5 | 3 | 11 | 7% |
| | Amiodarone | Yes | 1 | 5 | 3% | | No | 2 | 144 | 96% | | Missing | NA | 1 | 1% |
| | Bactrim | Yes | 1 | 1 | 1% | | No | 2 | 148 | 99% | | Missing | NA | 1 | 1% |
| | Azole | Yes | 1 | 1 | 1% | | No | 2 | 148 | 99% | | Missing | NA | 1 | 1% |
| | Which statin? (ST) | None | 0 | 93 | 62% | | Simva | 1 | 14 | 9% | | Atorva | 2 | 23 | 15% | | Prava | 3 | 7 | 5% | | Lova | 4 | 8 | 5% | | Rosuva | 5 | 4 | 3% | | Missing | NA | 1 | 1% |
| | Dialysis | Yes | 1 | 8 | 5% | | No | 2 | 142 | 95% |
| | Rheumatoid arthritis | Yes | 1 | 1 | 1% | | No | 2 | 149 | 99% |
| | Collagen vascular disease | Yes | 1 | 2 | 1% | | No | 2 | 148 | 99% |
| | Deep Vein Thrombosis (DVT) | Yes | 1 | 10 | 7% | | No | 2 | 140 | 93% |
| | Smoking | Current smoker | 1 | 13 | 9% | | Never smoker | 2 | 107 | 71% | | Ex-smoker | 3 | 30 | 20% |
| | EtOH | Yes | 1 | 24 | 16% | | No | 2 | 119 | 79% | | Missing | NA | 7 | 5% |
| | Illicit | Yes | 1 | 6 | 4% | | No | 2 | 144 | 96% |
| | Hypertension | Yes | 1 | 86 | 57% | | No | 2 | 64 | 43% |
| | Angina | Yes | 1 | 1 | 1% | | No | 2 | 149 | 99% |
| | Myocardial Infarction | Yes | 1 | 3 | 2% | | No | 2 | 147 | 98% |
| | Percutaneous Coronary Intervention (PCI) | Yes | 1 | 6 | 4% | | No | 2 | 144 | 96% |
| | Coronary Artery Bypass Graft (CABG) | Yes | 1 | 5 | 3% | | No | 2 | 145 | 97% |
| | Atrial Fibrillation or Flutter | Yes | 1 | 11 | 7% | | No | 2 | 139 | 93% |
| | Diabetes Mellitus (DM) | Yes | 1 | 48 | 32% | | No | 2 | 102 | 68% |
| | Stroke | Yes | 1 | 11 | 7% | | No | 2 | 139 | 93% |
| | Chronic Renal Insufficiency | Yes | 1 | 15 | 10% | | No | 2 | 135 | 90% |
| | Chronic Obstructive Pulmonary Disease (COPD) | Yes | 1 | 7 | 5% | | No | 2 | 143 | 95% |
| | Asthma | Yes | 1 | 18 | 12% | | No | 2 | 132 | 88% |
| | Valvular heart disease | Yes | 1 | 1 | 1% | | No | 2 | 149 | 99% |
| | Sickle cell | Yes | 1 | 3 | 2% | | No | 2 | 147 | 98% |
| | Cancer history | Yes | 1 | 12 | 8% | | No | 2 | 138 | 92% |
| | Pulmonary Embolism (PE) | Yes | 1 | 5 | 3% | | No | 2 | 144 | 96% | | Missing | NA | 1 | 1% |
| | Dyslipidemia | Yes | 1 | 53 | 35% | | No | 2 | 97 | 64% |
| | Heart Failure (HF) | Yes | 1 | 15 | 10% | | No | 2 | 135 | 90% |
| | Peripheral Vascular Disease (PVD) | Yes | 1 | 7 | 4% | | No | 2 | 143 | 95% |
|
|
These patients have predominantly unknown race. |
