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. Author manuscript; available in PMC: 2018 Jun 1.
Published in final edited form as: Heart. 2016 Nov 15;103(11):818–826. doi: 10.1136/heartjnl-2016-309266

Table 3.

Quality of Warfarin-Associated INR Monitoring and Time in INR Therapeutic Range

eGFR Group
>=120 105–119 90–104 60–89 45–59 30–44 15–29 <15 Dialysis Total p-value
Mean INR Monitoring Rate

Full Cohort 84.5% (n=147) 86.5% (n=1193) 86.4% (n=8198) 85.8% (n=35473) 85.6% (n=14577) 85.7% (n=6652) 86.2% (n=1786) 85.0% (n=267) 86.6% (n=334) 85.8% (n=68627) 0.2
Heart Failure 86.3% (n=24) 84.3% (n=152) 86.6% (n=966) 86.6% (n=4768) 86.4% (n=2801) 86.2% (n=1844) 87.0% (n=604) 86.2% (n=84) 86.4% (n=153) 86.5% (n=11369) 0.96
No Heart Failure 84.2% (n=123) 86.9% (n=1041) 86.4% (n=7232) 85.7% (n=30705) 85.4% (n=11776) 85.5% (n=4808) 85.8% (n=1182) 84.4% (n=183) 86.8% (n=181) 85.7% (n=57231) 0.06
Age < 75 84.5% (n=147) 86.4% (n=1173) 86.5% (n=7727) 86.0% (n=21873) 86.4% (n=6272) 86.4% (n=2225) 86.5% (n=660) 84.4% (n=150) 85.5% (n=254) 86.2% (n=40481) 0.67
Age ≥ 75 0 92.2% (n=20) 85.7% (n=471) 85.5% (n=13600) 85.0% (n=8305) 85.4% (n=4427) 86.0% (n=1126) 85.7% (n=117) 90.2% (n=80) 85.4% (n=28146) 0.26

Mean Overall TTR

Full Cohort 49.9% (n=127) 52.1% (n=1077) 57.4% (n=7215) 60.1% (n=29753) 59.4% (n=11854) 57.5% (n=5377) 54.2% (n=1442) 51.3% (n=203) 42.4% (n=289) 58.9% (n=57337) <0.001
Heart Failure 46.2% (n=23) 52.7% (n=139) 55.1% (n=860) 57.0% (n=4152) 55.9% (n=2379) 55.7% (n=1563) 52.5% (n=523) 47.9% (n=66) 40.0% (n=127) 55.8% (n=9832) <0.001
No Heart Failure 50.7% (n=104) 52.0% (n=938) 57.4% (n=6355) 60.1% (n=25601) 59.4% (n=9475) 57.5% (n=3814) 54.2% (n=919) 51.3% (n=137) 42.4% (n=162) 59.6% (n=47505) <0.001
Age < 75 50.0% (n=127) 52.0% (n=1059) 57.3% (n=6828) 59.8% (n=19075) 58.4% (n=5404) 55.2% (n=1906) 53.6% (n=576) 50.6% (n=112) 42.1% (n=219) 58.4% (n=35306) <0.001
Age ≥ 75 0 59.4% (n=18) 58.4% (n=387) 60.6% (n=10678) 60.1% (n=6450) 58.7% (n=3471) 54.6% (n=866) 52.3% (n=91) 43.4% (n=70) 59.8% (n=22031) <0.001

% of patients with Overall TTR >=60%

Full Cohort 29.9% (n=38) 38.4% (n=413) 50.1% (n=3613) 54.8% (n=16310) 53.0% (n=6287) 48.3% (n=2595) 42.5% (n=613) 38.4% (n=78) 21.1% (n=61) 24.4% (n=30008) <0.001
Heart Failure 30.4% (n=7) 36.7% (n=51) 45.7% (n=393) 48.6% (n=2018) 45.1% (n=1072) 44.5% (n=696) 39.2% (n=205) 30.3% (n=20) 18.9% (n=24) 45.6% (n=4486) <0.001
No Heart Failure 29.8% (n=31) 38.6% (n=362) 50.7% (n=3220) 55.8% (n=14292) 55.0% (n=5215) 49.8% (n=1899) 44.4% (n=408) 42.3% (n=52) 22.8% (n=37) 53.7% (n=25522) <0.001
Age < 75 29.9% (n=38) 38.1% (n=403) 49.9% (n=3410) 54.1% (n=10322) 51.5% (n=2781) 43.8% (n=834) 41.5% (n=239) 39.3% (n=44) 21.0% (n=46) 51.3% (n=18117) <0.001
Age ≥ 75 0 55.6% (n=10) 52.5% (n=203) 56.1% (n=5988) 54.4% (n=3506) 50.7% (n=1761) 43.2% (n=374) 37.4% (n=34) 21.4% (n=15) 54.0% (n=11891) <0.001