Warfarin

Time in therapeutic range.

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Contents:

Calculation of time in therapeutic range. URL https://cloud.opencpu.org/ocpu/apps/anticoagulation/warfarin/www/

Importance:

Benchmarking:

Routine medical care in community settings (PMID 16475046):

• 58.1%, United States
• 59.3%, France
• 62.8%, Canada

RCTS (PMID 23049730)

• During months 4 and beyond: 75% (range 64 - 83)

References:

1. Schmitt L, Speckman J, Ansell J. Quality assessment of anticoagulation dose management: comparative evaluation of measures of time-in-therapeutic range. J Thromb Thrombolysis. 2003 Jun;15(3):213-6. PMID: 14739631

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