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Table 1 Characteristics of patients before bronchoalveolar lavage

From: Hemosiderin-laden macrophages are an independent factor correlated with pulmonary vascular resistance in idiopathic pulmonary fibrosis: a case control study

Characteristics N = 103
Age, years 66 (48 ~ 76)
Male gender 80 (77.7)
Smokers 80 (77.7)
Brinkman index 630 ± 581
BNP, pg/ml 28.7 ± 38.7
Pulmonary function test
 FVC, % pred 86.8 ± 20.3
 DLCO, % pred 63.7 ± 20.3
Arterial blood gas analysis
 PaO2, Torr 82.4 ± 11.4
 PaCO2, Torr 41.0 ± 3.6
Six-minute walk test
 Six-minute walk distance, m 608 ± 140
 Min-SpO2, % 85.0 ± 7.6
  1. Values are presented as number (%), mean ± standard deviation or median (range). Definitions of abbreviations: BNP brain natriuretic peptide, FVC forced vital capacity, % pred percent of normal predicted value, D L CO diffusing capacity of the lung for carbon monoxide, PaO 2 partial pressure of oxygen in arterial blood, PaCO 2 partial pressure of carbon dioxide in arterial blood, min-SpO 2 minimum oxygen saturation during 6-min walk test