Table 1. Attributes of cases and controls.

	Cases (N=66)	Controls (N=312)	P	Associated mortality
Mean age	84.2	83.9
Median age	84.0	84.0
Sex (% Male)	33.3%	32%
7 day mortality	18.2%	6.7%	0.0137	11.5%
30 day mortality	37.9%	14.7%	<0.001	26.2%
90 day mortality	59.1%	24.0%	<0.001	38.1%
180 day mortality	68.2%	29.8%	<0.001	41.4%