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Table 3 Correlations between symptoms and baseline levels of BAFF and APRIL

From: B cell‐activating factors in autoimmune pulmonary alveolar proteinosis

  BAFF APRIL
Symptom Serum BALF Serum BALF
Dyspnea 0.15 0.08 0.38 0.18
Cough 0.80 0.98 0.81 0.72
Sputum 0.40 0.97 0.54 0.67
Smoking 0.30 0.18 0.33 0.26
Exposure to dust 0.79 0.32 0.65 0.31
DSS 0.04* 0.007* 0.25 0.90
  1. BAFF, B cell-activating factor; APRIL, a proliferation-inducing ligand; DSS, disease severity score. Data except DSS were analyzed using Wilcoxon rank-sum test. Data of DSS were analyzed using Spearman’s correlation coefficient. *Significant at the 0.05 level