Table 1.

Univariate analysis comparing clinical variables and mortality.

Variables	On discharge		One month		Six months		12 months
	mortality	p-value	mortality	p-value	mortality	p-value	mortality	p-value
Global	65 (4.7%)		118 (8.7%)		231 (16.9%)		353 (25.9%)
Sex:    Male    Female	7.6%3.9%	0.006	13.8%6.2%	<0.001	29.3%15.0%	<0.001	39.6%23.1%	< 0.001
Age	+5.3	<0.001	+4.0	<0.001	+3.3	<0.001	+3.4	< 0.001
Social status:    Alone    With partner    With children    Institutionalized	4.5%3.4%6.2%6.0%	0.319	6.9%6.3%9.6%10.2%	0.231	15.0%14.8%22.8%26.8%	0.001	22.2%20.3%34.7%42.1%	< 0.001
Barthel Scale	-9.4	0.071	-11.2	0.003	-15.4	<0.001	-16.8	< 0.001
Previous walking:    Autonomous    Cane/crutch    Walker    Dependent    Does not walk	3.3%5.3%6.5%7.2%7.0%	0.152	5.1%10.9%11.2%8.4%14.0%	0.003	13.1%21.7%30.0%24.5%27.8%	<0.001	20.3%31.9%36.5%42.4%47.2%	<0.001
Charlson index	+0.3	0.192	+0.5	0.025	+0.4	0.007	+0.5	< 0.001
Previous heart failure:    Present    Absent	8.5%3.9%	0.002	13.3%6.7%	<0.001	22.1%17.6%	0.097	37.4%25.0%	< 0.001
Cognitive impairment:PresentAbsent	7.3%4.0%	0.013	11.7%6.8%	0.004	25.1%15.5%	<0.001	41.1%21.2%	< 0.001
Degree of cognitive impairment:MildModerateSevere	5.5%8.0%10.4%	0.325	8.3%13.3%15.2%	0.181	17.9%25.5%36.0%	0.005	31.3%45.4%53.4%	0.001
Complications:    Present    Absent	16.8%2.9%	<0.001	25.0%5.4%	<0.001	40.7%14.9%	<0.001	53.3%22.9%	< 0.001
Delirium:    Present    Absent	3.0%2.0%	0.359	7.9%4.9%	0.069	22.2%14.5%	0.004	34.0%22.3%	< 0.001
Transfusion:    Present    Absent	3.1%3.2%	0.975	8.3%5.1%	0.019	22.0%13.1%	<0.001	32.2%21.6%	< 0.001

Data expressed as % or difference between means.