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Table 2 Clinical features and risk factor exposition in the study population

From: A clinical prediction tool for extended-spectrum β-lactamase-producing Enterobacteriaceae urinary tract infection

Variables

Overall (n = 874)

Training set (n = 611)

Validation set (n = 263)

P value

Status, n (%)

   

0.981

 ESBL−

602 (68.9)

420 (68.7)

181 (68.8)

 

 ESBL+ 

272 (31.1)

191 (31.3)

82 (31.2)

 

Gender, n (%)

   

0.111

 Male

236 (27.0)

176 (28.8)

62 (23.6)

 

 Female

638 (73.0)

435 (71.2)

201 (76.4)

 

Age, n (%)

   

0.543

 0 to 18 years

70 (8.0)

49 (8.0)

21 (8.0)

 

 18 to 60 years

309 (35.4)

209 (34.2)

100 (38.0)

 

 Over 60 years

495 (56.6)

353 (57.8)

142 (54.0)

 

Comorbidity diseases

 Diabetes mellitus, n (%)

   

0.920

  Yes

287 (32.8)

200 (32.7)

87 (33.1)

 

  No

587 (67.2)

411 (67.3)

176 (66.9)

 

 Chronic renal failure, n (%)

   

0.998

  Yes

123 (14.1)

86 (14.1)

37 (14.1)

 

  No

751 (85.9)

525 (85.9)

226 (85.9)

 

 Immunodeficiency, n (%)

   

0.913

  Yes

51 (5.8)

36 (5.9)

15 (5.7)

 

  No

823 (94.2)

575 (94.1)

248 (94.3)

 

 Neoplasia, n(%)

   

0.170

  Yes

103 (11.8)

78 (12.8)

25 (9.5)

 

  No

771 (88.2)

533 (87.2)

238 (90.5)

 

Recurrent Urinary tract infections, n (%)

  

0.496

 Yes

134 (15.3)

97 (15.9)

37 (14.1)

 

 No

740 (84.7)

514 (84.1)

226 (85.9)

 

 Severe underlying disease, n (%)

   

0.056

  Yes

66 (7.6)

53 (8.7)

13 (4.9)

 

  No

808 (92.4)

558 (91.3)

250 (95.1)

 

Hospital admission history

 Admission times, n (%)

   

0.555

  1 to 2 times

645 (73.8)

455 (74.5)

190 (72.2)

 

  3 to 6 times

159 (18.2)

111 (18.2)

48 (18.3)

 

  More than 6 times

70 (8.0)

45 (7.4)

25 (9.5)

 

 Hospital stay in preceding 3 months, n (%)

  

0.645

  Yes

309 (35.4)

219 (35.8)

90 (34.2)

 

  No

565 (64.6)

392 (64.2)

173 (65.8)

 

Previous hospitalization department

 Medical department, n (%)

   

0.905

  Yes

265 (30.3)

186 (30.4)

79 (30.0)

 

  No

609 (69.7)

425 (69.6)

184 (70.0)

 

 Surgical department, n (%)

  

0.111

  Yes

174 (19.9)

113 (18.5)

61 (23.2)

 

  No

700 (80.1)

498 (81.5)

202 (76.8)

 

 Intensive Care Unit (ICU), n (%)

   

0.724

  Yes

10 (1.1)

8 (1.3)

2 (0.8)

 

  No

864 (98.9)

603 (98.7)

261 (99.2)

 

Treatment history

 Invasive urological procedure, n (%)

  

0.880

  Yes

269 (30.8)

189 (30.9)

80 (30.4)

 

  No

605 (69.2)

422 (69.1)

183 (69.6)

 

 Antibiotic use in the past 3 months, n (%)

  

0.570

  Yes

190 (21.7)

136 (22.3)

54 (20.5)

 

  No

684 (78.3)

475 (77.7)

209 (79.5)