Testing a Middle-Range Theory of Self-Care of Chronic Illness: A Validation for Korean Adult Patients with Severe Hypertension

Eunha Gil; Heeyoung Oh

doi:10.4040/jkan.2018.48.5.521

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Gil and Oh: Testing a Middle-Range Theory of Self-Care of Chronic Illness: A Validation for Korean Adult Patients with Severe Hypertension

Original Article

Journal of Korean Academy of Nursing 2018; 48(5): 521-533.

Published online: 31 October 2018

DOI: https://doi.org/10.4040/jkan.2018.48.5.521

Testing a Middle-Range Theory of Self-Care of Chronic Illness: A Validation for Korean Adult Patients with Severe Hypertension

Eunha Gil¹, Heeyoung Oh²

¹Department of Nursing, Daejeon Institute of Science And Technology, Daejeon, Korea.

²College of Nursing, Eulji University, Daejeon, Korea.

Address reprint requests to: Oh, Heeyoung. College of Nursing, Eulji University, 77 Gyeryong-ro 771beon gil, Jung-gu, Daejeon 34824, Korea. Tel: +82-42-259-1713, Fax: +82-42-259-1709, hoh123@eulji.ac.kr

Received 2 March 2018 Revised 9 August 2018 Accepted 9 August 2018

Korean Society of Nursing Science

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution NoDerivs License. (http://creativecommons.org/licenses/by-nd/4.0/) If the original work is properly cited and retained without any modification or reproduction, it can be used and re-distributed in any format and medium.

Abstract

Purpose

The aims of this study are to provide a theoretical framework for improving the self-care of adults with severe hypertension and to examine the practical suitability of a middle-range theory of self-care for chronic illness by validating the structural model.

Methods

Data were collected at a university hospital in D metropolitan city from July 1 to August 14, 2015. A total of 224 Korean adult patients with severe hypertension were recruited. Data were analyzed using SPSS 22.0 and AMOS 22.0.

Results

The results show that the fit index of the hypothetical model meets the recommended level; 7 out of 8 hypothetical model paths were statistically significant. Motivation, self-efficacy, support from others, and accessibility to care showed statistical significance and explained 67.3% of the self-care process. The self-care process explained 45.3%, 63.6%, and 26.5% of quality of life, health, and illness stability, respectively.

Conclusion

This model can be used as a theoretical framework for improving self-care among adult Korean patients with severe hypertension. Moreover, the practical suitability and validity of the middle-range theory of self-care for chronic illness is secured.

Keywords: Self-Care, Hypertension, Nursing Theory, Chronic Illness

Figures and Tables

Figure 1

Conceptual framework.

Figure 2

Path diagram of the final model.

Table 1

General and Illness Related Characteristics (N=224)

M±SD=Mean±standard deviation; BMI=Body mass index; HBP=Hypertensive blood pressure.

Table 2

Descriptive Statistics of the Measured Variables (N=224)

M±SD=Mean±standard deviation; Avg=Average; SBP=Systolic blood pressure; DBP=Diastolic blood pressure.

Table 3

Standardized Estimates, CR, SMC, Standardized Direct, Indirect, and Total Effect of the Final Model

CR=Critical ratio; SMC=Squared multiple correlations; SBP=Systolic blood pressure; DBP=Diastolic blood pressure.

Notes

^*This manuscript is a condensed form of the first author's doctoral dissertation from Eulji University. Year of approval 2016.

^{CONFLICTS OF INTEREST} The authors declared no conflict of interest.

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ORCID iDs: Heeyoung Oh
https://orcid.org/0000-0002-8053-3565
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