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

Table 5 Multivariate linear regression analysis for correlation with PVR

Characteristics	β	95% CI	P-value
Six-minute walk distance	−0.391	−0.587 ~ −0.196	< 0.001
min-SpO₂	−0.294	−0.455 ~ −0.133	0.001
HLM score	0.265	0.088 ~ 0.412	0.002
			R = 0.595

Definitions of abbreviations: PVR pulmonary vascular resistance, β standardized partial regression coefficient, 95% CI 95% confidence interval, min-SpO ₂ minimum oxygen saturation during 6-min walk test, HLM hemosiderin-laden macrophage

ISSN: 1471-2466