Table 2.

Healthcare Use Among Participants Scheduled for 4 Consecutive 12-Week Follow-up INR Intervals^a

Variable	0–12 mo Analysis, mean (S.D.)			12–24 mo Analysis, mean (S.D.)
	Baseline (n = 15)	12 mo	p	12–24 mo	p
Planned anticoagulation encounters	11.87 (3.34)	6.87 (1.68)	<0.001	6.73 (2.31)	<0.001
Unplanned anticoagulation encounters	0.4 (1.06)	0.87 (1.46)	0.69	0.87 (0.92)	0.11
Telephone triage	0.2 (0.41)	0.67 (0.98)	0.38	0.27 (0.59)	1.0
Emergency department visits	0.73 (1.16)	0.87 (1.59)	1.0	1.0 (1.6)	0.69
Hospitalizations	0.07 (0.26)	0.07 (0.26)	1.0	0.07 (0.26)	1.0
Procedures	0.26 (0.46)	0 (0)	0.13	0.4 (0.63)	1.0

^aINR = International Normalized Ratio.