Table 2 Biomarkers in the Lung cancer, COPD and Control Groups

 Total IgG ng/ml (mean ± SE)

6.87 ± 0.38**

5.36 ± 0.39

5.97 ± 0.51

 Total IgE, ng/ml (median ± IQR)

243 ± (181.3–305.5)†, **

172.5 ± (95.5–297.8)*

91.0 ± (69.5–266.5)

 IgG to NTHi OMP, RU (mean ± SE)

2.10 ± 0.22

2.02 ± 0.16

1.74 ± 0.24

 IgG to NTHi P6, (mean ± SE)

1.55 ± 0.13

1.62 ± 0.10

1.32 ± 0.07

 NTHi Culture positive

2 (10)

6 (22)

1 (8)

 NTHi PCR positive

5 (20)

6 (22)

2 (15)

 Staphylococcus aureus

1

 Streptococcus pneumoniae

1

 Pseudomonas aeruginosa

2

 Stenotrophomonas maltophilia

1

 Atypical Mycobacterium

1

 Aspergillus fumigatus

1

1

 No microorganism

17

16

11