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Stratos LV/LV-T Technical Manual 23
Table 1: Patient Demographics at Enrollment
Characteristic Group1 Group 2 Group 3
P-value
Age @
Enrollment (Yrs)
Mean ± SE
Range
N=42
73.7 ± 1.3
56 to 90
N=50
72.3 ± 1.2
51 to 86
N=25
71.5 ± 1.6
52 to 85
0.534*
Gender
Male
Female
N=42
18 (42.9%)
24 (57.1%)
N=50
19 (38.0%)
31 (62.0%)
N=25
13 (52.0%)
12 (48.0%)
0.553**
Six-Minute Walk
Distance
(meters)
Mean ± SE
Range
N=42
262.7 ±
15.1
78 to 420
N=50
283.6 ±
13.8
37 to 438
N=25
267.8 ±
22.9
23 to 420
0.395*
New York Heart
Association
Class
Class II
Class III
N=42
23 (54.8%)
19 (45.2%)
N=50
18 (36.0%)
32 (64.0%)
N=25
10 (40.0%)
15 (60.0%)
0.189**
Underlying Heart
Disease
Dilated
Cardiomyopathy
Hypertrophic
Cardiomyopathy
Valvular Heart
Disease
Coronary Artery
Disease
Hypertension
No underlying
structural heart
disease
N=42
8 (19.0%)
4 (9.5%)
12 (28.6%)
19 (45.2%)
37 (88.1%)
3 (7.1%)
N=49
11 (22.4%)
1 (2.0%)
12 (24.5%)
28 (57.7%)
37 (75.5%)
2 (4.1%)
N=25
1 (4.0%)
2 (8.0%)
5 (20.0%)
6 (24.0%)
19 (76.0%)
7 (28.0%)
0.125**
0.216**
0.792**
0.031**
0.348**
0.007**