Table 3.

12 year risk and adjusted relative risk between 1983 and 1995 of developing endocarditis or venous thromboembolism by Coxiella burnetii infection among 1658 residents of Val de Bagnes, Switzerland^*

	Never infected (n=1247)			Acutely infected (n=411)		Relative risk (95% CI)†
	No of cases	Risk (%)		No of cases	Risk (%)
Endocarditis	9	0.7		3	0.7	1.0 (0.9 to 1.1)
Venous thromboembolism	30	2		15	4	1.8 (0.9 to 3.8)‡

^*People with serological evidence of infection with Coxiella burnetii occurring before 1983 were excluded from this analysis. ^†Relative risk adjusted for age in 1983 and sex using Cox proportional hazard models. 

^‡P=0.10.