Table 2

Incidence rates (95% CIs) per 100 person-years of ischaemic stroke by CHA₂DS₂-VASC scores in individuals with initial record of diagnosis in primary or secondary care

	Initial record of diagnosis
	Primary care		Secondary care		p Value	Population overall
	Events	Rate	Events	Rate	p Value	Events	Rate
CHA₂DS₂-VASc scores
0	12	0.2 (0.1 to 0.3)	16	0.3 (0.2 to 0.5)	0.16	28	0.2 (0.2 to 0.4)
1	77	0.6 (0.4 to 0.7)	76	0.7 (0.6 to 0.9)	0.08	153	0.6 (0.5 to 0.7)
2	244	1.1 (1.0 to 1.3)	209	1.4 (1.2 to 1.6)	0.05	453	1.2 (1.1 to 1.3)
3	528	2.0 (1.8 to 2.2)	485	2.4 (2.2 to 2.6)	0.01	1013	2.2 (2.0 to 2.3)
4	766	2.9 (2.7 to 3.2)	907	3.9 (3.7 to 4.2)	0.00	1673	3.4 (3.2 to 3.6)
5	450	3.9 (3.5 to 4.2)	966	6.5 (6.1 to 6.9)	0.00	1416	5.3 (5.1 to 5.6)
6	332	6.4 (5.7 to 7.1)	1028	12.0 (11.3 to 12.8)	0.00	1360	9.9 (9.4 to 10.4)
7	146	7.7 (6.6 to 9.1)	546	14.8 (13.6 to 16.1)	0.00	692	12.4 (11.5 to 13.3)
8	34	9.3 (6.6 to 12.9)	151	15.8 (13.5 to 18.5)	0.00	185	13.9 (12.1 to 16.1)
9	5	13.4 (5.6 to 32.3)	27	22.1 (15.2 to 32.3)	0.31	32	20.0 (14.2 to 28.4)
0–9	2594	2.3 (2.2 to 2.4)	4411	4.3 (4.2 to 4.42)	0.00	7005	3.2 (3.2 to 3.3)

Bold text is used to differentiate the rates among individual scores 0,1, 2, …, 9, from all scores 0 to 9 combined.