Table 4.

Baseline characteristics prior to hospitalization for 254 patients (ESBL-producing Enterobacteriaceae) and 233 controls (no ESBL-producing Enterobacteriaceae)

Baseline characteristics	ESBL+ (N = 254)	ESBL- (N = 233)	p-value
Mean age ± SD (years)	61.4 ± 18.2	61.9 ± 17.4	0.76
Male gender	120 (47.2%)	101 (43.4%)	0.39
Previous hospitalization	115 (45.3%)	96 (41.2%)	0.37
Transfer status
From another hospital	30 (11.8%)	26 (11.2%)	0.82
From a long-term care facility	4 (1.6%)	2 (0.9%)	0.47
Underlying diseases
Any underlying disease	225 (88.6%)	195 (83.7%)	0.12
Hypertension	115 (61.0%)	135 (57.9%)	0.49
Diabetes mellitus	106 (41.7%)	78 (33.5%)	0.06
Cardiovascular disease	74 (29.1%)	59 (25.3%)	0.35
Cerebrovascular disease	56 (22.0%)	41 (17.6%)	0.22
Chronic liver disease	43 (16.9%)	45 (19.3%)	0.50
Chronic renal disease	37 (14.6%)	27 (11.6%)	0.33
Chronic lung disease	32 (12.6%)	41 (17.6%)	0.82
Malignancy	46 (18.1%)	41 (17.6%)	0.88
Solid malignancy	42 (16.5%)	33 (14.1%)	0.47
Hematologic malignancy	4 (1.6%)	8 (3.4%)	0.19
Hematologic diseases	26 (10.2%)	21 (9.0%)	0.65
Prior organ transplantation	2 (0.8%)	5 (2.2%)	0.21
Receipt of any immunosuppressive agent	33 (13.0%)	26 (11.2%)	0.54
HIV infection	10 (3.9%)	6 (2.6%)	0.40
Previous antibiotic exposure within 90 days after hospitalization
Any antibiotic	84 (33.1%)	64 (27.5%)	0.18
Penicillins	12 (4.7%)	7 (3.0%)	0.33
Cephalosporins	40 (15.8%)	20 (8.6%)	0.02
Carbapenems	16 (6.3%)	17 (7.3%)	0.67
Beta-lactam/beta-lactamase inhibitors	10 (3.9%)	17 (7.3%)	0.11
Fluoroquinolones	26 (10.2%)	20 (8.6%)	0.53
Macrolides	11 (4.3%)	8 (3.4%)	0.61
Others	24 (9.5%)	18 (7.7%)	0.50
Previous use of indwelling catheters
Urinary catheter	40 (15.8%)	33 (14.2%)	0.63
Nasogastric tube	26 (10.2%)	19 (8.2%)	0.43