Table 1.

Baseline Demographics and Clinical Characteristics of Patients

Age (years), mean+/− SD	81.21 +/− 4.73
Age >75-80, n (%)	70 (49.3)
Age >80-85, n (%)	41 (28.9)
Age >85-90, n (%)	24 (16.9)
Age >90, n (%)	7 (4.9)
Gender (female), n(%)	74 (52.1)
Glomerular Filtration Rate (ml/min), n(%)
15-29 (severe decrease in GFR)	3 (2.1)
30-59 (mild decrease in GFR)	48 (34.8)
80-89 (moderate decrease in GFR)	66 (47.8)
>90 (normal or increased GFR)	21 (15.2)
Duration of anticoagulation (years), n(%)
<1	20 (14)
1 to <2	26 (18.3)
2 to<3	40 (28.2)
3 to <4	40 (28.2)
>4	16 (11.3)
Existing co-morbidities, n(%)
Uncontrolled HTN (SBP > 160 mm Hg)	3 (2.1)
Liver disease (cirrhosis, LFT 2X ULN or albumin <3.6)	1 (0.7)
CKD (dialysis-dependent, s/p renal transplant or Cr > 2.6)	1 (0.7)
Malignancy (actively being treated)	22 (15.5)
Diabetes mellitus	29 (20.4)
Congestive heart failure	42 (29.6)
Prior CVA (imaging-proven)	33 (23.2)
Frequent falls	23 (16.2)
Alcohol use (>8 drinks/week)	7 (5)
Bleeding diathesis or history of life-threatening bleed	11 (7.7)
Anemia	26 (18.3)
Concomitant anti-platelet therapy	34 (24)