TABLE 2.

Screening Effect Across Quartiles of AF Risk

Score	Quartile	AF Incidence in Screened Group (95% CI) (per 100 person-y)	AF Incidence in Control Group (95% CI) (per 100 person-y)	Difference in AF Incidence (95% CI) (per 100 person-y)
CHARGE-AF	1	1.02 (0.69-1.35)	0.62 (0.36-0.88)	0.40 (−0.03 to 0.82)
	2	1.10 (0.75-1.46)	1.11 (0.78-1.45)	−0.01 (−0.50 to 0.48)
	3	2.22 (1.71-2.73)	2.44 (1.94-2.94)	−0.22 (−0.94 to 0.49)
	4	5.62 (4.79-6.46)	5.13 (4.40-5.86)	0.49 (−0.62 to 1.60)
ECG-AI	1	1.08 (0.73-1.44)	0.79 (0.50-1.08)	0.29 (−0.16 to 0.75)
	2	1.00 (0.66-1.34)	1.24 (0.88-1.60)	−0.24 (−0.74 to 0.25)
	3	2.37 (1.84-2.89)	2.86 (2.32-3.41)	−0.50 (−1.25 to 0.26)
	4	5.33 (4.53-6.13)	4.49 (3.80-5.17)	0.84 (−0.21 to 1.90)
CH-AI	1	0.76 (0.48-1.05)	0.51 (0.28-0.75)	0.25 (−0.12 to 0.62)
	2	1.33 (0.94-1.73)	0.90 (0.59-1.20)	0.44 (−0.06 to 0.93)
	3	1.97 (1.49-2.44)	2.58 (2.07-3.10)	−0.62 (−1.32 to 0.09)
	4	5.93 (5.07-6.79)	5.32 (4.57-6.06)	0.61 (−0.53 to 1.75)

Abbreviations as in Table 1.