Table 2.

Mortality of the HK and non-HK cohorts during the follow-up period.

	HK cohort	Non-HK cohort	p -value	HR	95% CI
Mortality in the 12-month follow-up period	36.4%	8.3%	<0.001	5.4	[4.2, 6.8]
Mortality in the total follow-up period	49.5%	18.1%	<0.001	3.7	[3.2, 4.4]

HR, hazard ratio; CI, confidence interval.