Table 8: Subgroup analyses of stress agents using DORs for Stress ECHO.

Subgroup Comparison – Stress Agents	P-Value
Exercise vs. Adenosine	0.87
Exercise vs. Dipyridamole	0.66
Exercise vs. Dobutamine	0.66
Adenosine vs. Dipyridamole	0.66
Adenosine vs. Dobutamine	0.66
Dipyridamole vs. Dobutamine	0.87
Exercise vs. Adenosine	0.87
Exercise vs. All Pharmacologic	0.66