Table 4. Clinical Utilization Over 1 Year in Those Actively Monitored and Their Matched Observational Controls.

	Actively Monitored Group (n = 1738)	Matched Control Group (n = 3476)	Difference (95% CI)
AF-related therapeutic interventions, No./100 person-years)
Pharmacy fill for an anticoagulant	5.7	3.7	2.0 (1.9 to 2.2)
Pharmacy fill for an anticoagulant for individuals with AF	2.4	1.3	1.1 (1.0 to 1.2)
Pharmacy fill for an antiarrhythmic medication	0.8	0.3	0.5 (0.4 to 0.5)
Cardioversion procedures	0.24	0.19	0.05 (0.03 to 0.08)
Cardiac ablation	0.3	0.1	0.2 (0.18 to 0.24)
ED visit or inpatient stays with an AF diagnosis	1.3	1.4	0.1 (−0.1 to 0)
Clinical use (No./100 person-years)
Placement of a pacemaker or defibrillator	0.79	0	0.79 (0.75 to 0.84)
Any cause ED visit or inpatient stays	22.5	23.7	−1.2 (−1.5 to −0.9)
Participants with at least 1 all-cause outpatient office visit to a primary care clinician	83.5	82.6	0.9 (0.4 to 1.5)
Participants with at least 1 all-cause outpatient office visit to a cardiologist	33.5	26.0	7.5 (7.2 to 7.9)
Participants with at least 1 all-cause outpatient office visit to a cardiologist or primary care clinician	89.2	88.1	1.1 (0.5 to 1.7)
Clinical use (No./person-year)
Primary care visits	2.78	2.84	−0.07 (−0.17 to 0.03)
Cardiology visits	0.67	0.48	0.19 (0.15 to 0.24)
Cardiology or primary care visits	3.45	3.32	0.12 (0.01 to 0.23)

Abbreviations: AF, atrial fibrillation; ED, emergency department.