Table 7.

Univariate Cox analysis revealing risk factors for infectious failure.

	Univariate analysis
	HRa	95% CIb	p
Age (per 10 years)	0.73	0.48–1.10	0.13
ASA>1	4.93	0.65–37.33	0.12
Immunosuppression	2.61	0.92–7.43	0.07
Peripheral arterial disease	3.28	0.74-14.44	0.12
Acute infection as initial clinical presentation according to Tsukayama	3.02	1.11–8.19	0.03
Acute infection as initial clinical presentation according to Zimmerli	4.11	0.91–18.5	0.07

^aHazard ratio.

^b95% CI.