Table 5.

Risk of HCAI and death using a Cox regression model

Outcome	Predictor	HR	95% CI	P-value
HCAI	Age
	Below 65 years old	1
	Above 65 years old	1.383	(1.246, 1.534)	< 0.001
DEAD	Age
	Below 65 years old	1
	Above 65 years old	2.704	(2.250, 3.250)	< 0.001
	HCAI
	Not acquire HCAI	1
	Acquire HCAI	2.921	(2.307, 3.698)	< 0.001

Schoenfeld residuals

HCAI as outcome: test: Age: p = 0.837

DEAD as outcome: Global test: p = 0.552; detailed test: Age: p = 0.295; HCAI: p = 0.707