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| |
All Patients N = 407
|
Group 1 N = 169
|
Group 2 N = 238
|
P value *
|
|---|
|
Age (years)
|
65 ± 12
|
63 ± 13
|
66 ± 11
|
0.06
|
|
Male (percent)
|
213 (52%)
|
69 (41%)
|
144 (60%)
|
<0.0001
|
|
Height (cm)
|
168 ± 10
|
166 ± 9
|
170 ± 10
|
0.005
|
|
Weight (kg)
|
83.6 ± 16.9
|
81.4 ± 16.7
|
85.2 ± 17.0
|
0.03
|
|
Scan protocol (percent)
| | | | |
|
Two-Day
|
351 (84%)
|
148 (88%)
|
202 (85%)
|
>0.2
|
|
Same-Day
|
56 (14%)
|
21 (12%)
|
35 (15%)
| |
|
Stress method (percent)
| | | | |
|
Exercise only
|
173 (43%)
|
100 (59%)
|
73 (31%)
|
<0.0001
|
|
Dipyridamole
|
234 (57%)
|
69 (41%)
|
165 (69%)
| |
|
Heart rate (BPM)
| | | | |
|
Stress scan
|
70 ± 12
|
71 ± 13
|
70 ± 13
|
0.15
|
|
Rest scan
|
64 ± 12
|
64 ± 11
|
64 ± 13
|
>.2
|
|
Change
|
6 ± 9
|
8 ± 10
|
5 ± 9
|
0.005
|
|
Perfusion
| | | | |
|
SSS
|
7 ± 8
|
1 ± 1
|
11 ± 8
|
<0.0001
|
|
SRS
|
3 ± 6
|
0 ± 0
|
5 ± 7
|
<0.0001
|
|
SDS
|
4 ± 4
|
1 ± 1
|
6 ± 5
|
<0.0001
|
|
LVEF (%)
|
57 ± 14
|
64 ± 9
|
52 ± 15
|
<0.0001
|
|
TID Ratio
|
1.04 ± 0.12
|
1.01 ± 0.12
|
1.06 ± 0.12
|
0.0001
|
