Table 2.

Difference between two groups at baseline with regard to NYHA class, MLWHFQ, 6MWT distance, HR and Borg scale before and after 6MWT.

Baseline		Group 1	Group 2	Test valuea	p	Significance
NYHA class	3	14 (70.0)	14 (70.0)	0.000	1.000	NS
	4	6 (30.0)	6 (30.0)
MLWHFQ total score	Mean ± SD	21.35 ± 26.52	13.45 ± 22.14	1.023b	0.313	NS
	Range	0–70	0–70
HR before, bpm	Mean ± SD	94.25 ± 13.31	94.50 ± 12.13	−0.062b	0.951	NS
	Range	80–130	80–130
Borg dyspnea before	Median (IQR)	4 (3–5)	3 (3–4)	−2.307c	0.021	S
	Range	2–7	2–5
Borg fatigue before	Median (IQR)	4 (3–5)	3 (3–4)	−2.307	0.021	S
	Range	2–7	2–5
6MWT distance, m	Mean ± SD	138.00 ± 66.54	135.50 ± 60.91	0.124	0.902	NS
	Range	30–280	20–230
Premature termination of 6MWT	Negative	17 (85.0)	16 (80.0)	0.173a	0.677	NS
	Dyspnea	3 (15.0)	4 (20.0)
HR after, bpm	Mean ± SD	120.50 ± 13.17	120.75 ± 15.75	−0.054b	0.957	NS
	Range	100–150	100–150
Borg dyspnea after	Median (IQR)	8 (6–8)	7 (6–8)	−0.140c	0.889	NS
	Range	4–10	5–10
Borg fatigue after	Median (IQR)	8 (6–8)	7 (6–8)	−0.140c	0.889	NS
	Range	4–10	5–10

Data are presented as n (%) or mean ± SD and range.

6MWT = 6-minute walking test distance; HR = heart rate; HS = highly significant; IQR = interquartile range; MLWHFQ = Minnesota Living with Heart Failure Questionnaire; NS = non-significant; NYHA = New York Heart Association; S = significant.

^aChi-square test.

^bIndependent t test.

^cFisher exact test.