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Table 1 Analysis of the bronchoalveolar lavage All the animals who received sterile beads were included in the sterile group and compared to the control and pneumonic groups at respectively 2, 5, 8, 15 and 21 days post instillation.

From: Chronic pneumonia with Pseudomonas aeruginosa and impaired alveolar fluid clearance

  Total cells (× 106)/mL PMNs (%) Macrophages (%)
Ctr 0.4 ± 0.1 0.5 ± 0.4 98.5 ± 0.5
St 3.2 ± 0.6 5.6 ± 4.4 92.9 ± 4.4
Pn 2 10.5 ± 2.9* 79.8 ± 5.2* 19.0 ± 4.6*
Pn 5 7.9 ± 1.7* 19.0 ± 8.0 79.3 ± 8.4
Pn 8 4.9 ± 1.0 3.8 ± 0.7 95.5 ± 1.0
Pn 15 4.0 ± 0.8 1.2 ± 0.6 98.8 ± 0.6
Pn 21 4.9 ± 1.8 2.0 ± 0.6 97.2 ± 0.6
  1. Footnote: Data are mean (± SD). Comparisons between groups were made using analysis of variance with post hoc for multiple comparisons. *p < 0.05 vs the other groups.
  2. PMNs: Polymorphonuclear neutrophils, Ctr: Control group, St: Sterile group, Pn: Pneumonic group