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Table 1 Characteristics of cancer patients with Enterobacteriaceae isolation. Derivation Phase

From: Development and validation of a scoring system for predicting cancer patients at risk of extended-spectrum b-lactamase-producing Enterobacteriaceae infections

Total, No. (%)

Cases

(ESBL-PE)n = 265 (37)

Controls

(non-ESBL-PE)n = 445 (63)

p

Clinical characteristics

 Age, median (IQR), years

56 (39–67)

60 (47–70)

0.009

 Age ≥ 70 years

49 (18)

114 (25)

0,029

 Men

148 (56)

286 (64)

0.026

 Admission as an outpatient

231 (87)

425 (96)

0.000

 Solid tumor

186 (70)

336 (76)

0.120

 Hematological malignancy

79 (30)

109 (34)

 Active neoplasia

245 (92)

428 (96)

0.031

 Neoplasia in remission

20 (8)

17 (4)

Comorbidities

 Acute myocardial infarction

6 (1,5)

7 (2,2)

0,050

 Symptomatic heart failure

5 (1,8)

9 (2)

0,900

 Peripheral arterial disease

1 (0,38)

1 (0,22)

0,711

 Cerebrovascular disease

2 (0,7))

3 (0,6))

0,901

 Dementia

2 (0,7)

4 (0,9)

0,839

 Chronic obstructive pulmonary disease

14 (5,2)

18 (4,0)

0,442

 Connective tissue disease

2 (0,7)

8 (1,8)

0,254

 Peptic acid disease

2 (0,7)

3 (0,6)

0,901

 Chronic liver disease

5 (1,8)

6 (1,3)

0,574

 Mellitus diabetes

18 (6,7)

44 (9,8)

0,158

 Hemiplegia

9 (3,4)

12 (2,7)

0,595

 Renal disease

20 (7,5)

28 (6,2)

0,519

 Metastasis

85 (32)

135 (30)

0,628

 AIDS

4 (1,5)

3 (0,6)

0,276

 Charlson comorbidity index ≥4

104 (39)

167 (36)

0,649

Medical interventions

 Hospitalization during previous year

223 (84)

264 (59)

0.000

 Prolonged hospitalization (≥7 days)

119 (45)

141 (32)

0.000

 Immunosuppressive therapya

27 (10)

19 (4)

0,002

 Radiation therapya

23 (9)

43 (10)

0.662

 Chemotherapya

89 (34)

183 (41)

0.046

 Neutropenia at the time of culture

59 (22)

68 (15)

0.019

 Surgical procedures during previous year

130 (49)

168 (38)

0.003

 Invasive devices at the time of cultureb

146 (55)

177 (40)

0.000

 Urinary catheter during last month

93 (35)

127 (29)

0,068

Antibiotic use during previous month to index culture

 Any antibiotic

102 (38)

108 (24)

0,000

 Beta-lactams

80 (31)

82 (18)

0,000

 Aminoglycosides

5 (2)

2 (0,4)

0,108

 Quinolones

10 (3,8)

8 (1,8)

0,136

 Carbapenemic

26 (10)

16 (3,6)

0,001

 Cotrimoxazole

11 (4)

7 (1,5)

0,045

 Others

21 (8)

23 (5)

0,125

Isolate source

 Blood

63 (23)

86 (19)

0.384

 Urinary tract

142 (54)

272 (61)

 Surgical wound

47 (18)

68 (15)

 Skin and soft tissues

3 (1)

4 (1)

 Lower respiratory tract

10 (4)

15 (3)

Isolated microorganism

E. coli.

166 (63)

299 (67)

0.000

Klebsiella spp.

92 (35)

80 (18)

Proteus spp.

3 (1)

55 (12)

 Others

4 (2)

11 (2)

  1. a during the previous 3 months, bcentral venous catheter, dialysis catheter, surgical drains, bladder catheter, nephrostomy, nasogastric tube