Table 2.

Study performance. Results are presented as mean ±1 SD (range) for continuous variables and percentage for categorical variables. P-values are from Chi-square test and Student’s t-test (P-value≥0.05)

	CHF (n=58)	COPD (n=36)	P-value
Completed 12 study months, n (%)	32 (55)	19 (53)	n.s.
Did not complete 12 study months, n (%)	26 (45)	17 (47)	n.s.
Reasons behind early exclusion
Death, n (%)	16 (28)	13 (36)	n.s.
Deterioration, n (%)	6 (10)	2 (6)	n.s.
Change of residency, n (%)	4 (7)	2 (6)	n.s.
Study months
Total	484	280
Per study subject	8.4±4.5 (0–12)	7.8±4.8 (0–12)	n.s.

Abbreviations: CHF, chronic heart failure; n.s., not significant.