The Effect of the Teach-Back Method on Knowledge, Performance, Readmission, and Quality of Life in Heart Failure Patients
Table 2
Measurements of primary outcomes in intervention and control groups.
Variables
Intervention (n = 35)
Control (n = 35)
Mean difference
(95% CI) lower
(95% CI) lower
value
value
value for interaction
Mean
SD
Mean
SD
Knowledge
Before
5.23
2.67
4.37
2.16
0.86
−0.30
2.01
0.144
<0.001
<0.001
After
9.37
2.34
5.43
1.77
3.31
2.78
3.86
<0.001
Post
10.03
2.04
8.00
1.64
1.63
0.94
2.32
<0.001
Performance
Before
14.77
5.97
14.71
6.39
0.06
−2.89
3.01
0.969
0.011
<0.001
After
25.26
5.50
16.74
5.68
8.47
7.42
9.51
<0.001
Post
28.14
4.91
26.06
3.36
2.06
0.82
3.29
0.001
Physical function
Before
38.29
19.13
31.86
15.63
6.43
−1.90
14.76
0.128
<0.001
0.418
After
39.29
16.77
31.86
15.63
1.60
−0.59
3.80
0.150
Role physical
Before
5.71
17.24
7.86
17.96
−2.14
−10.54
6.25
0.612
<0.001
<0.001
After
15.71
19.26
7.86
17.96
9.85
5.66
14.04
<0.001
Body pain
Before
34.71
18.46
27.97
15.28
6.74
−1.34
14.83
0.101
<0.001
0.001
After
43.09
14.13
27.97
15.28
10.07
6.30
13.84
<0.001
General health
Before
26.94
15.80
27.51
16.38
−0.57
−8.25
7.10
0.882
<0.001
<0.001
After
42.94
12.32
27.51
16.38
15.82
12.21
19.45
<0.001
Vitality
Before
36.29
14.52
38.29
16.67
−2.00
−9.46
5.46
0.594
<0.001
<0.001
After
49.43
11.99
38.29
16.67
12.74
9.94
15.56
<0.001
Social functioning
Before
33.40
15.81
30.89
11.52
2.51
−4.09
9.11
0.450
<0.001
<0.001
After
47.34
14.29
30.89
11.52
14.63
10.37
18.91
<0.001
Role emotional
Before
10.40
20.95
10.43
22.50
−0.03
−10.40
10.34
0.996
0.032
0.001
After
16.09
23.33
10.43
22.50
5.68
1.36
10.01
0.011
Mental health
Before
50.63
10.58
49.49
11.92
1.14
−4.23
6.52
0.673
<0.001
<0.001
After
60.69
7.10
49.49
11.92
10.37
8.54
12.20
<0.001
Total physical health
Before
28.26
11.75
26.54
10.51
1.71
−3.60
7.03
0.522
<0.001
<0.001
After
38.03
9.21
26.54
10.51
10.09
8.16
12.03
<0.001
Total mental health
Before
31.60
10.78
31.37
9.38
0.23
−4.59
5.05
0.925
<0.001
<0.001
After
43.26
8.80
31.37
9.38
11.70
9.61
13.79
<0.001
Total SF-36
Before
29.51
10.99
28.00
8.59
1.51
−3.19
6.22
0.523
<0.001
<0.001
After
39.31
8.77
28.00
8.59
10.06
8.31
11.81
<0.001
Independent t-test for baseline measures, ANCOVA for after (post) intervention measures. ANCOVA for after (post) intervention measures adjusted for gender, age, BMI, education, family history, hypertension history, diabetic history, hyperlipedimia history, smoking history, alcolic history, and stressful personality. Time-intervention interaction based on RMANOVA. Bold values indicate significant P values.
