Table 3.

Prevalence of stroke risk factors in the hospital administrative data and the OSA, kappa agreement, and relative risk in the period between April 1, 2012 and March 31, 2013

Risk factora	Hospital administrative data		Audit		Kappa (95% CI)	Relative risk (95% CI)
	n	%	n	%
Atrial fibrillation	2,112	21.9	1,945	20.1	0.60 (0.58–0.62)	0.92 (0.89–0.95)*
Diabetes	2,843	29.4	2,730	28.3	0.86 (0.85–0.87)	0.96 (0.94–0.98)*
Hyperlipidemia	1,175	12.2	4,460	46.2	0.16 (0.14–0.17)	3.8 (3.6–4.0)*
Hypertension	5,757	59.6	7,025	72.7	0.41 (0.40–0.43)	1.22 (1.20–1.24)*

Total sample number = 9,658.

^aICD-10-CA code with any diagnosis type.

^*p value <0.05.