Table 3.

Correlations between six‐minute walk test parameters and functional variables in ILD patients.

	DD Ratio†	Distance*	SpO2 min %*	SpO2 basal ‐ min†
DLco %	r  =  ‐ 0.72	r  =  0.58	r  =  0.61	r  =  ‐ 0.67
	p < 0.001	p < 0.001	p < 0.001	p < 0.001
FVC %	r  =  ‐ 0.46	r  =  0.33	r  =  0.43	r  =  ‐ 0.50
	p  =  0.001	p  =  0.02	p  =  0.002	p < 0.001
FEV1 %	r  =  ‐ 0.52	r  =  0.25	r  =  0.59	r  =  ‐ 0.60
	p < 0.001	p  =  0.08	p < 0.001	p < 0.001

Distance in meters; DD Ratio ‐ desaturation distance ratio; SpO2 min % ‐ minimal sustained peripheral oxygen saturation during ≥ 10 seconds; SpO2 basal % ‐ peripheral oxygen saturation at rest

^*Pearson ^†Spearman