Table 3 Quality of life in participants with heart failure of each node based on CART

Node 1

EF ≤ 36 & Self-Management ≤ 3.29

6 (5.0)

2.70 ± 0.25

Node 2

EF ≤ 36 & Self-management > 3.29

15 (12.6)

3.24 ± 0.62

0.54

0.30

0.26

Node 3

36 < EF ≤ 69 & Self-Management ≤ 4.04

63 (52.9)

3.66 ± 0.69

0.97

0.27

0.69

Node 4

36 < EF ≤ 69 & Self-Management > 4.04

10 (8.4)

4.09 ± 0.39

1.39

0.32

0.55

Node 5

EF > 69

25 (21.0)

4.11 ± 0.54

1.42

0.28

0.82

Overall: R² = .26, Adjusted R² = .23, F = 9.80, p < .001