User Manual Part 4

B-34
CLINICAL STU DY - COMPANION
50
20
10
40
0
Time (months)
∆ Six Minute Walk Distance (m)
3 6
CRT
OPT
∆ = 24
p = 0.016
∆ = 24
p = 0.017
(Critical boundary = 0.05)
Mean ± SE
30
Figure B-14. Change in six-minute walk
Table B-12. Change in six-minute walk
CRT OPT
Six-Minute Walk (m)
N Mean ±
S.E.
NMean±
S.E.
P-value
a
Change a t 3 mont hs
274 37 ± 5 63 13 ± 1 0 0.016
Change a t 6 mont hs
260 41 ± 5
57
17 ± 10 0.017
a. P-values obtained using one-tailed longitudinal analysis methods.
NYHA Class––the determination for New York Heart Association (NYHA) Class
is based on mutual assessment, by the patient and physician, of the patient’s
heart failure symptoms both at rest and while performing ordinary physical
activity(FigureB-15onpageB-35,TableB-13onpageB-35).
- DRAFT -