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Table 2 The differences of each variable between IPF and SAR group

From: Distinct compartmentalization of SP-A and SP-D in the vasculature and lungs of patients with idiopathic pulmonary fibrosis

  Univariate analysis Multivariate analysis
Sex P = 0.073 P = 0.056
Age P < 0.001 P = 0.007
Smoking status P = 0.528 P = 0.277
BALF SP-A level P = 0.405 P = 0.082
BALF SP-D level P = 0.001 P = 0.016
  1. The SP-D level in BALF of IPF patients was significantly decreased compared to SAR patients with univariate and multivariate analysis. IPF, idiopathic pulmonary fibrosis; SAR, sarcoidosis; BALF, bronchoalveolar lavage fluid; SP-A, surfactant protein A; SP-D, surfactant protein D.