Group Number Gender Gender Age Cardiac function classification Cardiac function classification Cardiac function classification
Male Female Level I Level II Level III
Observation 50 29(58.00) 21(42.00) 57.45±8.56 10(20.00) 17(34.00) 23(46.00)
Control 50 31(62.00) 19(38.00) 57.97±8.65 9(18.00) 16(32.00) 25(50.00)
statistical value χ2=0.167 χ2=0.167 t=0.302 χ2=0.166 χ2=0.166 χ2=0.166
P - value 0.683 0.683 0.763 0.920 0.920 0.920