Skip to main content

Table 7 CT parameters in subjects according to sputum microbiology

From: Relationship of CT-quantified emphysema, small airways disease and bronchial wall dimensions with physiological, inflammatory and infective measures in COPD

 

Frequency

%LAA<−950

E/I MLD

Pi10

Potentially Pathogenic Bacteria

 Culture positive

55

10.9 (17.2)

0.92 (0.07)

3.79 (0.12)

 Culture negative

51

15.1 (24.0)

0.90 (0.07)

3.78 (0.09)

 P value

–

0.260

0.152

0.146

Haemophilus influenzae

 Culture positive

31

11.5 (18.0)

0.92 (0.08)

3.79 (0.11)

 Culture negative

75

13.3 (20.0)

0.91 (0.07)

3.79 (0.10)

 P value

–

0.370

0.207

0.197

Moraxella catarrhalis

 Culture positive

8

12.4 (23.1)

0.93 (0.07)

3.78 (0.10)

 Culture negative

98

12.5 (20.3)

0.91 (0.07)

3.79 (0.11)

 P value

–

0.981

0.720

0.549

Streptococcus pneumoniae

 Culture positive

18

10.2 (9.9)

0.92 (0.05)

3.83 (0.11)

 Culture negative

88

14.3 (24.9)

0.91 (0.08)

3.79 (0.09)

 P value

–

0.501

0.626

0.203

Staphylococcus aureus

 Culture positive

6

13.5 (22.4)

0.91 (0.08)

3.74 (0.05)

 Culture negative

100

12.5 (20.6)

0.91 (0.07)

3.80 (0.11)

 P value

–

0.667

0.682

0.039*

Pseudomonas aeruginosa

 Culture positive

6

21.4 (27.5)

0.95 (0.06)

3.83 (0.16)

 Culture negative

100

12.0 (20.1)

0.91 (0.07)

3.79 (0.11)

 P value

–

0.367

0.034*

0.498

  1. Frequency given as number of subjects. For CT parameters, values represent medians and IQR. *P < 0.05 using Mann Whitney U test