[Retracted] Exercise Rehabilitation Improves Heart Function and Quality of Life in Elderly Patients with Chronic Heart Failure

Table 5

Variable setting and assignment.

Variable name	Assignment
Number of hospitalizations due to heart failure in the past year	0 = 0; 1∼3 = 1; 3∼5 = 2
Heart function classification	II = 0; III = 1; IV = 2
Medical payment method	Medical insurance = 0; self-pay = 1
Whether it is equipped with bracket	No = 0; Yes = 1
Anxiety/depression	0∼7 = 1; 8∼10 = 2; 11∼21 = 3
Difficulty breathing	Yes = 1; No = 0
Edema	Yes = 1; No = 0
Complications	0 = 0; 1∼3 = 1; 3∼5 = 2
Heart failure quality of life score	≤30 = 0; >30 = 1