Time in therapeutic range calculated using the fraction of INRs method
| Time of Assessment | Target Therapeutic Range (2–3 or 2.5–3.5) | Expanded Therapeutic Range (±0.2 INR units) | Expanded Therapeutic Range (±0.3 INR units) |
|---|---|---|---|
| Pre-DMT | 52.19 | 63.90 | 68.78 |
| Post-DMT | 63.56 | 77.33 | 81.38 |
Time in the therapeutic range was calculated by the fraction of INRs method, dividing the number of INRs within the target range for all patients by the total number of INRs for all patients during the selected time interval.22 Cutoff values for the expanded therapeutic range (±0.2 INR units) were 1.8–3.2 for an INR goal of 2–3 and 2.3–3.7 for an INR goal of 2.5–3.5.3 Cutoff values for the expanded therapeutic range (±0.3 INR units) were 1.7–3.3 for an INR goal of 2–3 and 2.2–3.8 for an INR goal of 2.5–3.5.25 Abbreviations: DMT, diagnostic management team; INR, international normalized ratio.