Table 4. Risk classification by models including CHADS2 score and CHADS2 plus high-sensitivity C-reactive protein.

Individuals in the unshaded diagonal boxes did not change classification with the addition of high-sensitivity C-reactive protein. Dark grey shading indicates the number of individuals who were reclassified in a desirable direction when high-sensitivity C-reactive protein was added to the CHADS2 score; light grey shading indicates individuals who were reclassified in an undesirable direction. Data in parentheses are row percents.

	Model with CHADS2	Model with CHADS2 plus high-sensitivity C-reactive protein
	Predicted risk of death	<30%	30–39%	≥40%
Participants who died during follow-up (n=134)	<30%	80 (93)	5 (6)	1 (1)
	30–39%	6 (27)	12 (55)	4 (18)
	≥40%	0 (0)	2 (8)	24 (92)
Participants who did not die during follow-up (n=159)	<30%	23 (100)	0 (0)	0 (0)
	30–39%	13 (22)	41 (68)	6 (10)
	≥40%	0 (0)	14 (18)	62 (82)