Table 2 Subgroup analysis of the prevalence of colistin resistance in clinical S. maltophilia isolates

Overall

42 (35–49)

61

1–97

98.97

< 0.001

0.597

Region

North and South America

33 (20–46)

8

12–92

97.20

< 0.001

0.458

Europe

45 (34–56)

33

1–97

98.84

< 0.001

0.299

Asia

45 (31–60)

12

6–94

95.96

< 0.001

0.337

Worldwide*

39 (12–66)

7

1–73

99.74

< 0.001

0.453

Australia

13 (0.04-38)

1

-

-

0.13

-

Period

2000–2010

44 (29–60)

15

5–96

88.40

< 0.001

0.656

2011–2022

41 (33–50)

46

1–97

99.09

< 0.001

0.925

Method

Broth microdilution

46 (35–58)

25

1–97

99.4

< 0.001

0.455

Other

39 (30–49)

36

1–96

97.8

< 0.001

0.687

Sample size

One hundred and less

46 (35–57)

44

1–97

98.11

< 0.001

0.976

More than a hundred

33 (21–44)

17

1–85

99.5

< 0.001

0.026

Quality of studies

Medium (4–6)

46 (35–57)

35

5–97

97.66

< 0.001

0.504

High (7–8)

37 (28–46)

26

1–95

99.27

< 0.001

0.193