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Table 3 Spearman's correlation between MMP-9 level and inflammatory cell counts during exacerbation† (n = 19)

From: MMP-9, TIMP-1 and inflammatory cells in sputum from COPD patients during exacerbation

Correlation Rho P value
Neutrophils 0.74 <0.005
Macrophages 0.46 <0.1
Eosinophils 0.45 <0.05
Lymphocytes 0.72 <0.005
  1. † Sputa obtained from 19 exacerbations