Group Number LVEDV(mL) LVESV(mL) LVEF(%)
Observation 50 93.72±9.85 50.75±7.34 57.85±6.84
Control 50 104.56±10.67 55.68±8.42 53.57±6.68
t 5.278 3.121 3.165
P <0.001 0.002 0.002