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Table 1 Categorized clinical specimens into 4 groups on the basis of clinical diagnosis

From: Available, Bed-sided, Comprehensive (ABC) score to a diagnosis of Methicillin-resistant Staphylococcus aureus infection: a derivation and validation study

Clinical diagnosis N (%)

Group 0

Group 1

Group 2

Group 3

Nasal 29

Pharyngeal 18

Expectorated sputum 15

Other non-aseptic specimen 17

Surgical site 14

Pus 12

Aspirated Sputum 36

Drained 7

Blood 14

Other aseptic specimen 10

Colonization (%)

28 (96.6)

18 (100)

10 (66.7)

14 (82.4)

5 (35.7)

4 (33.3)

17 (47.2)

0 (0.0)

2 (14.3)

0 (0.0)

Undetermined (%)

1 (3.4)

0 (0.0)

2 (13.3)

2 (11.8)

7 (50.0)

4 (33.3)

6 (16.7)

3 (42.9)

0 (0.0)

1 (10.0)

Active Infection (%)

0 (0.0)

0 (0.0)

3 (20.0)

1 (5.9)

2 (14.3)

4 (33.3)

13 (36.1)

4 (57.1)

12 (85.7)

9 (90.0)