Table 1 Immune cells found in bronchoalveolar lavage fluid and endotracheal aspirates

Monocytes (CD45+CD14+)

26, +/− 22

65, +/− 11

p = 0.001

r = 0.350

p = 0.266

Alveolar macrophages (CD45+CD206+)

36, +/− 29

12, +/− 11

p = 0.005

r = 0.643

p = 0.028

Lymphocytes (CD45+ , forward/side scatter)

32, +/− 14

15, +/− 11

p = 0.001

r = 0.580

p = 0.052

B Cells (CD45+ CD20+)

2, +/− 1.4

7, +/− 8

p = 0.030

r = 0.587

p = 0.049

T Cells (CD45+ CD3+)

78, +/− 15

72, +/− 13

p = 0.176

r = 0.238

p = 0.457

CD4+T cells (CD45+CD3+CD4+)

55, +/− 23

65, +/− 18

p = 0.064

r = 0.848

p = 0.001

CD8+cells (CD45+CD3+CD8+)

40, +/− 22

31, +/− 18

p = 0.077

r = 0.692

p = 0.016

Unclassified CD45+cells

6, +/− 7

8, +/− 6