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Table 1 Demographic characteristics of the children analysed in this study

From: Risk factors for nosocomial rectal colonisation with carbapenem-resistant Gram-negative bacilli in children with haematological malignancies: a case-control study

Variable

CR-GNB1 colonisation group (n = 69)

Control group (n = 138)

χ2

P-value

Age in months (median, range)

61.0(38.5–132.0)

72.0(48.0-132.0)

/

0.739

Gender (male), n (%)

42(60.9)

80(58.0)

0.160

0.689

AML/ALL2, n (%)

65(94.2)

112(81.2)

6.135

0.012

Prior concomitant infections within the last 1 month, n (%)

66(95.7)

114(82.6)

6.900

0.009

Sepsis

58(84.1)

101(73.2)

3.051

0.081

Respiratory tract infection

34(49.3)

52(37.7)

2.546

0.111

Enteritis

8(11.6)

16(11.6)

0.000

1.000

Oral mucositis

9(13.0)

8(5.8)

3.204

0.073

Prior β-lactam-β-lactamase inhibitor combinations usage within the last 1 month, n (%)

21(30.4)

52(37.7)

1.058

0.304

Prior cephalosporins usage within the last 1 month, n (%)

13(18.8)

31(22.5)

0.361

0.548

Prior 3rd generation cephalosporins usage within the last 1 month, n (%)

13(18.8)

30(21.7)

0.235

0.628

Prior carbapenems usage within the last 1 month, n (%)

50(72.5)

68(49.3)

10.092

0.001

Prior macrolides usage within the last 1 month, n (%)

3(4.3)

17(12.3)

3.349

0.067

Prior sulfonamides usage within the last 1 month, n (%)

19(27.5)

34(24.6)

0.203

0.652

Number of days since last chemotherapy(median, range)

15.0(12.0–29.0)

13.5(10.0-23.3)

/

0.116

Prior HSCT3, n (%)

11(15.9)

4(2.9)

11.644

0.001

WBCs, ×109/L (median, range)

0.55(0.22–2.05)

0.82(0.29–3.12)

/

0.142

Platelets, ×109/L (median, range)

44(17–72)

40(17–127)

/

0.619

CRP, mg/L (median, range)

8.81(0.97–34.98)

5.36(0.50-20.23)

/

0.124

Agranulocytosis

51(73.9)

89(64.5)

1.865

0.172

Outcomes, n (%)

    

CR-GNB3 infections

8(11.6)

3(2.2)

6.349

0.012

Thirty-day mortality

4(5.8)

0(0.0)

5.385

0.020

  1. 1 CR-GNB: Carbapenem-resistant Gram-negative bacillus; 2 AML: Acute myeloid leukemia/ALL: Acute lymphoblastic leukemia; 3 HSCT: Haematopoietic stem-cell transplantation. Statistically positive significant results at the 5% level (P < 0.05) are indicated in bold