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. 2011 Jan 12;11:12. doi: 10.1186/1471-2334-11-12

Table 1.

Clinical data of patients with a healthcare-associated colonization or infection by an Extended-Spectrum Beta-Lactamase (ESBL) producing microorganism

Characteristics of patients Healthcare-associated group N = 104 (91%)
Demographic characteristics:
 Male sex 56 (54)
 Age: median; years (inter-quartile range) 71 (62-79)
 Patients over 65 years 67 (64)
 Nursing home residents, n (% of patients over 65 years) 16 (24)

Proportion of ambulatory or hospitalized patients:
 Outpatients 15 (14)
 Inpatients 89 (86)

Co-morbidities:
 CIRS*: mean global score ± SD (inter-quartile range) 10.5 ± 3.9 (8-13)
 CIRS: mean nr of different categories ± SD (inter-quartile range) 5.2 ± 2.0 (4-7)
 Mean Norton Index ± SD;/20 points (inter-quartile range) 14.8 ± 3.6 (12-18)
 Diabetes Mellitus 24 (23)
 Chronic renal insufficiency 24 (23)
 Heart failure 13 (12.5)
 Severe chronic respiratory disease 17 (16)
 Cirrhoses 3 (3)
 Haematological malignancies 8 (8)
 Pressure ulcers 16 (15)
 Urinary catheters 38 (37)
 Wounds 34 (33)
 PEG** or tracheotomy 7 (7)

Medications:
 Proton pump inhibitors 34 (33)
 Histamine2 receptor antagonist 25 (24)
 Number of patients previously exposed to antibiotics: 60 (58)
 Mean antibiotic use ± SD (inter-quartile range) 2 ± 1.5 (1-3)

Clinical infection due to an ESBL microorganism: 68 (65)
 Urinary tract infection 38 (55.9)
 Respiratory tract infection 18 (26.5)
 Bloodstream infection 6 (8.8)
 Others 6 (8.8)

Simple ESBL carriers (colonization): 36 (35)

Previous known MRSA carriage: 9 (9)

Contact with health care system:
 Previous hospitalization within 1 year 68 (65)
 Multiple contacts within 1 year 71 (68)
 Admission to ICU§ during current hospitalization 30 (29)

Median overall LOS§§, days (inter-quartile range): 23 (13-39)
Proportion with a long LOS (≥ 8 days) 77 (87)

Number of death: 12 (12)

Data are provided in absolute number and percentage between brackets. * CIRS: Cumulative Illness Rating Scale for Geriatrics; **PEG: Percutaneous Endoscopic Gastrostomy; § ICU: Intensive Care Unit; §§ LOS: Length of hospital stay;