Journal List > J Korean Acad Nurs > v.38(1) > 1063760

Ju and So: Effects of the Nutrition Education Program on Self-efficacy, Diet Behavior Pattern and Cardiovascular Risk Factors for the Patients with Cardiovascular Disease

Abstract

Purpose

This study examined the effects of a nutrition education program on self-efficacy, diet behavior pattern and cardiovascular risk factors for patients with cardiovascular disease (CVD).

Method

Sixty-four CVD subjects (37 experimental, 27 control) were recruited from a cardiac center, at a university hospital located in D city, Korea. All subjects attended a first heart camp where pretest measures were performed, and a second heart camp at 6 months for the posttest measures. During the 6 month study period, the experimental group was required to attend five monthly nutrition education sessions, while the control group received only routine outpatient follow-ups. Data were analyzed by X2-test and independent t-test using the SPSSWIN 11.5 program.

Result

Group comparisons revealed that the experimental group had significantly more improved self-efficacy, frequency of food selection, gustation of salt, systolic blood pressure, and serum total-cholesterol compared to the control group.

Conclusion

A nutrition education program may be effective in improving self-efficacy, diet behavior pattern and cardiovascular risk factors for patients with cardiovascular disease.

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Table 1.
Homogeneity Test for General and Disease-Related Characteristics between the Experimental and Control Groups (N=64)
Characteristics Frequency (%)
χ2 p
Total Experimental (n=37) Control (n=27)
Gender 3.025 .082
 Male 41 (64.1) 27 (73.0) 14 (51.9)
 Female 23 (35.9) 10 (27.0) 13 (48.1)
Age (yr) 1.420 .701
 < 60 5 (7.8) 4 (10.8) 1 (3.7)
 60-64 18 (28.1) 10 (27.1) 8 (29.6)
 65-69 27 (42.2) 16 (43.2) 11 (40.8)
 ≥70 14 (21.9) 7 (18.9) 7 (25.9)
 Mean (SD) 66.36 (4.01) 65.92 (3.69) 66.96 (4.42)
Marital status 2.829 .093
 Married 62 (96.9) 37 (100.0) 25 (92.6)
 Widowed 2 (3.1) 0 (0) 2 (7.4)
Education 4.093 .536
 Elementary school 17 (26.6) 8 (21.6) 9 (33.3)
 Middle school 7 (10.9) 4 (10.8) 3 (11.2)
 High school 18 (28.1) 10 (27.1) 8 (29.6)
 College or more 22 (34.4) 15 (40.5) 7 (25.9)
Economic status 1.730 .188
 Middle 48 (75.0) 30 (81.1) 18 (66.7)
 Low 16 (25.0) 7 (18.9) 9 (33.3)
Smoking 3.768 .583
 Current smoker 3 (4.6) 1 (2.7) 2 (7.4)
Quit
 ≥5 yr 15 (23.5) 10 (27.0) 5 (18.5)
 <5 yr 14 (21.9) 10 (27.0) 4 (14.8)
 None 32 (50.0) 16 (43.3) 16 (59.3)
Admission history 0.152 .697
 Yes 29 (45.3) 16 (43.2) 13 (48.1)
 No 35 (54.7) 21 (56.8) 14 (51.9)
Chronic disease*
 Arthritis 16 (25.0) 10 (27.0) 6 (20.0)
 Diabetes 10 (15.6) 6 (16.2) 4 (13.3)
 Hypertension 30 (46.9) 18 (48.6) 14 (46.7)
 Vascular disease 24 (37.5) 16 (43.2) 8 (29.6)
 Respiratory disease 10 (15.6) 5 (13.5) 5 (16.7)
 Neuralgia 10 (15.6) 6 (16.2) 4 (13.3)
 Others 5 (7.8) 3 (8.1) 2 (6.7)
Perceived health status 2.176 .537
 A lot worse 12 (18.8) 9 (24.3) 3 (11.1)
 Somewhat worse 14 (21.9) 8 (21.6) 6 (22.2)
 Similar 28 (43.8) 14 (37.8) 14 (51.9)
 Somewhat better 10 (15.5) 6 (16.3) 4 (14.8)

* Multiple response.

Table 2.
Homogeneity Test for Self Efficacy, Diet Behavior Pattern and Cardiovascular Risk Factors between the Experimental and Control Groups
Variables Experimental (n=37)
Control (n=27)
t p
Mean (SD) Mean (SD)
Self- efficacy 45.62 (9.28) 43.89 (10.02) -0.713 .739
Diet behavior pattern
Diet behavior 15.43 (2.63) 15.19 (3.05) -0.347 .406
Frequency of food selection 99.92 (5.29) 101.93 (6.25) 1.388 .314
Gustation of salt (%) 0.32 (0.14) 0.29 (0.12) -0.716 .190
Cardiovascular risk factors
Systolic blood pressure (mmHg) 127.86 (17.55) 126.26 (16.21) -0.373 .707
Body mass index (kg/m2) 23.96 (2.66) 26.08 (2.56) 3.197 .772
Body fat rate (%) 24.78 (6.24) 29.63 (5.76) 3.177 .530
Waist circumference (cm) 84.40 (7.37) 89.36 (7.09) 2.698 .954
Total-cholesterol (mg/dl) 194.59 (37.91) 178.97 (35.24) -1.677 .202
Triglyceride (mg/dl) 113.01 (42.61) 125.85 (43.50) 1.181 .901
HDL-cholesterol (mg/dl) 49.76 (14.10) 44.44 (11.35) -1.613 .080
LDL-cholesterol (mg/dl) 119.54 (32.11) 111.57 (29.28) -1.018 .327
Glucose (mg/dl) 100.05 (15.72) 96.37 (13.63) -0.978 .392
Table 3.
Mean Group Comparisons in Self Efficacy, Diet Behavior Pattern and Cardiovascular Risk Factors at the Posttest
Variables Posttest scores
Mean difference
t p
Experimental (n=37)
Control (n=27)
Experimental (n=37)
Control (n=27)
Mean (SD) Mean (SD) Mean (SD) Mean (SD)
Self- efficacy 46.97 (9.55) 40.22 (9.80) 1.35 (8.37) -3.67 (8.42) -2.363 .021
Diet behavior pattern
Diet behavior 16.32 (2.14) 15.56 (2.03) 0.89 (2.08) 0.37 (2.22) -0.963 .339
Frequency of food selection 101.92 (4.95) 99.56 (4.74) 2.00 (5.75) -2.37 (5.99) -2.950 .004
Gustation of salt (%) 0.19 (0.13) 0.28 (0.14) -0.13 (0.16) -0.01 (0.15) 2.996 .004
Cardiovascular risk factors
Systolic blood pressure (mmHg) 125.46 (15.76) 135.19 (15.91) -2.41 (15.05) 8.93 (11.92) 3.238 .002
Body mass index (kg/m2) 24.15 (2.58) 26.39 (2.58) 0.19 (0.66) 0.31 (0.73) 0.700 .486
Body fat rate (%) 26.18 (5.83) 30.67 (5.71) 1.41 (1.68) 1.04 (1.78) -0.851 .398
Waist circumference (cm) 84.59 (7.05) 89.70 (7.67) 0.19 (3.06) 0.35 (3.92) 0.179 .858
Total-cholesterol (mg/dl) 173.14 (30.75) 173.82 (30.64) -21.46 (41.34) -4.81 (22.12) 2.075 .042
Triglyceride (mg/dl) 116.78 (57.72) 131.06 (41.04) -9.14 (71.89) 11.78 (60.38) 1.228 .224
HDL-cholesterol (mg/dl) 45.00 (13.07) 42.22 (9.03) -4.76 (5.59) -2.22 (5.12) 1.856 .068
LDL-cholesterol (mg/dl) 106.32 (29.73) 109.74 (39.92) -13.22 (31.56) -5.56 (18.48) 1.127 .264
Glucose (mg/dl) 81.11 (17.27) 83.15 (11.25) -18.95 (22.04) -13.22 (14.83) 1.169 .247
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