Table 1.

Demographic and clinical characteristics of total population

Characteristic	Total N = 159
Age (years), mean (SD)	83.2 (9.6)
Sex, n (%)
Male	113 (43.6)
History of antibiotic allergy, n (%)
Penicillin allergy  Other antibiotic allergy	14 (8.8) 5 (3.1)
Charlson comorbidity index age adjusted, mean (SD)	6.1 (2.0)
Comorbidities, n (%)
Myocardial infarction  Congestive heart failure  Peripheral vascular disease  Cerebrovascular accident or transient isquemic attack  Cognitive impairment  COPD  Peptic ulcer disease	16 (10.1) 15 (9.4) 17 (10.7) 32 (20.1) 87 (54.7) 18 (11.3) 11 (6.9)
Liver disease
Mild   Moderate to severe	3 (1.9) 0 (0)
Diabetes mellitus
Uncomplicated   End-organ damage  Hemiplegia  Moderate to severe chronic kidney disease  Solid tumor  Leukemia/lymphoma  AIDS	49 (30.8) 11 (6.9) 0 (0) 40 (25.2) 6 (3.8) 0 (0) 0 (0)
Functional status, n (%)
Bowel and/or bladder incontinence  Functional dependence  Pressure sores	68 (42.8) 78 (49.1) 8 (5.0)
Medical devices, n (%)
Urinary catheter  Vascular catheter for dialysis  Tracheostomy  Feeding tube	6 (3.8) 0 (0) 1 (0.6) 5 (3.1)

AIDS acquired immune deficiency syndrome, COPD chronic obstructive pulmonary disease, SD standard deviation