BODE index versus GOLD classification for explaining anxious and depressive symptoms in patients with COPD – a cross-sectional study

Table 4 Linear regression of the components of the BODE index on the anxiety score and the depression score.

	FEV_1%predicted *		6 minute walking distance		body mass index*		MMRC dyspnoea score
	β	p	β	p	β	p	β	p
anxiety score	-0.030	0.787	-0.083	0.472	0.126	0.167	0.222	0.067
depression score	-0.090	0.346	-0.338	0.001	-0.016	0.837	0.227	0.031

* FEV_1%predicted and Body mass index were logarithm transformed prior to regression

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