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Table 2 The results of one-way Chi-square test about exposure factors in MDR-AB infection patients

From: A multi-center study on the risk factors of infection caused by multi-drug resistant Acinetobacter baumannii

Characteristics

Acinetobacter baumannii bacteremia N (%)

P

MDR-AB (N = 195)

Non-MDRAB (N = 294)

Sex

Male

165 (84.6)

225 (76.5)

0.03

Female

30 (15.4)

69 (23.5)

Age (y)

< 50

10 (5.13)

58 (19.7)

 

50–60

22 (11.3)

131 (44.6)

< 0.001

60–70

98 (50.3)

62 (21.1)

70–80

46 (23.6)

34 (11.6)

> 80

19 (9.74)

9 (3.06)

Recent history of surgery

Yes

54 (27.7)

75 (25.5)

0.59

No

141 (72.3)

219 (74.5)

Comorbidities

< 2

165 (84.6)

246 (83.7)

0.78

≥2

30 (15.4)

48 (16.3)

HAI

Yes

117 (60.0)

104 (35.4)

< 0.001

No

78 (40.0)

190 (64.6)

ICU days

< 15d

24 (12.3)

78 (26.5)

< 0.001

≥15d

171 (87.7)

216 (73.5)

Mechanical ventilation

Yes

177 (90.8)

210 (71.4)

< 0.001

No

18 (9.2)

84 (28.6)

Indwelling catheters

Yes

183 (93.8)

234 (79.6)

< 0.001

No

12 (6.2)

60 (20.4)

Combined use of antimicrobial agents prior to infection

Yes

174 (89.2)

246 (83.7)

< 0.001

No

21 (10.8)

48 (16.3)

Use of third-generation cephaloglycin

Yes

186 (95.4)

246 (83.7)

< 0.001

No

9 (4.6)

48 (16.3)

Hospitalization times

< 3

33 (16.9)

97 (33.0)

< 0.001

≥3

162 (83.1)

197 (67.0)

History of cancer

Yes

121 (62.1)

148 (50.3)

0.01

No

74 (37.9)

146 (49.7)

APACHE II score

< 18

117 (60.0)

228 (77.6)

< 0.001

≥18

78 (40.0)

66 (22.4)