Table 2.

Factors associated with hospital mortality according to bivariate analysis.

	No death (n = 268)	Death (n = 142)	p
Mean age in years (SD)	67.4 (13.8)	77 (12)	<0.001
Age groups
Under 65	113 (85.6%)	19 (14.4%)	<0.001
Between 65 and 75 years	67 (65%)	36 (35%)
Between 75 and 85 years	64 (56.6%)	49 (43.4%)
More than 85 years	24 (38.7%)	38 (61.3%)
Sex
Male	131 (64.9%)	71 (35.1%)	0.829
Female	137 (65.9%)	71 (34.1%)
Barthel
> 60	225 (70.5%)	94 (29.5%)	<0.001
≤ 60	27 (45.8%)	32 (54.2%)
Not available	–	–
Charlson
< 3	230 (71.2%)	93 (28.8%)	<0.001
= >	38 (43.7%)	49 (56.3%)
Obesity
Yes	51 (58%)	37 (42%)	0.099
No	217 (67.4%)	105 (32.6%)
Respiratory disease
Chronic
Yes	86 (59.3%)	59 (40.7%)	0.057
No	182 (68.7%)	83 (31.3%)
Ischemic Heart Disease / Heart Failure
Yes	22 (44%)	28 (56%)	<0.001
No	246 (68.3%)	114 (31.7%)
Renal failure
Yes	23 (46.9%)	26 (53.1%)	0.004
No	245 (67.9%)	116 (32.1%)
Chronic liver disease
Yes	5 (71.4%)	2 (28.6%)	0.999
No	263 (65.3%)	140 (34.7%)
Hematologic malignancy
Yes	4 (44.4%)	5 (55.6%)	0.286
No	264 (65.8%)	137 (34.2%)
Other neoplasms
Yes	11 (36.7%)	189 (63.3%)	0.001
No	257 (67.6%)	123 (32.4%)
Diabetes
Yes	68 (62.4%)	41 (37.6%)	0.445
No	200 (66.4%)	101 (33.6%)
HBP
Yes	148 (57.8%)	108 (42.2%)	<0.001
No	120 (77.9%)	34 (22.1%)
Cognitive impairment
Yes	29 (59.2%)	20 (40.8%)	0.332
No	239 (66.2%)	122 (33.8%)
Other neurological diseases
Yes	58 (60.4%)	38 (39.6%)	0.244
No	210 (66.9%)	104 (33.1%)
Depressive syndrome
Yes	35 (57.4%)	26 (42.6%)	0.155
No	233 (66.8%)	116 (33.2%)
Heart failure during admission
Yes	3 (15%)	17 (85%)	<0.001
No	265 (67.9%)	125 (32.1%)
Cardiovascular event during admission
Yes	2 (33.3%)	4 (66.7%)	0.190
No	262 (65.5%)	138 (34.5%)
Immunosuppressive treatment
Yes	9 (64.3%)	5 (35.7%)	0.999
No	259 (65.4%)	137 (34.6%)
Institutionalized
Yes	15 (46.9%)	17 (53.1%)	0.022
No	253 (66.9%)	125 (33.1%)
Influenza vaccine
Yes	116 (55.5%)	93 (44.5%)	<0.001
No	152 (75.6%)	49 (24.4%)
ICU admission
Yes	14 (58.3%)	10 (41.7%)	0.456
No	254 (65.8%)	132 (34.2%)