Hee Sun Kim; Eui Geum Oh

doi:10.4040/jkan.2011.41.4.460

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Original Article
An Explanatory Model for Sleep Disorders in People with Cancer: Hee Sun Kim, Eui Geum Oh; Journal of Korean Academy of Nursing 2011;41(4):460-470.
DOI: https://doi.org/10.4040/jkan.2011.41.4.460
Published online: August 31, 2011

¹Assistant Professor, Department of Nursing, Jeonbuk Science College, Jeongeup, Korea.

²Professor, College of Nursing, Yonsei University, Seoul, Korea.

Address reprint requests to: Kim, Hee Sun. Department of Nursing, Jeonbuk Science College, 9-28 Sigi 3-dong, Jeongeup 580-060, Korea. Tel: +82-63-530-9298, Fax: +82-63-532-3768, joha0219@hanmail.net

• Received: January 20, 2011 • Accepted: August 4, 2011

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Abstract
NOTES
REFERENCES

Abstract

Purpose
The aim of this study was to develop and test an explanatory model for sleep disorders in people with cancer. A hypothetical model was constructed on the basis of a review of previous studies, literature, and sleep models, and 10 latent variables were used to construct a hypothetical model.
Methods
Data were collected from April 19 to June 25, 2010, using self-report questionnaires. The sample was 291 outpatients with cancer who visited the oncology cancer center at a university hospital. Collected data were analyzed using SPSS Win 15.0 program for descriptive statistics and correlation analysis and AMOS 7.0 program for covariance structural analysis.
Results
It appeared that overall fit index was good as χ²/df=1.162, GFI=.969, AGFI=.944, SRMR=.052, NFI=.881, NNFI=.969, CFI=.980, RMSEA=.024, CN=337 in the modified model. The explanatory power of this model for sleep disorders in people with cancer was 62%. Further, sleep disorders were influenced directly by cancer symptom experience, dysfunctional beliefs and attitudes about sleep, and past sleep pattern.
Conclusion
Findings suggest that nurses should assess past sleep pattern and consider the development of a comprehensive nursing intervention program to minimize the cancer symptom experience, dysfunctional beliefs and attitudes about sleep, and thus, reduce sleep disorders in people with cancer.
Keywords: Neoplasms; Sleep disorders

This article is a revision of the first author's doctoral thesis.

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Figure 1

Conceptual framework.

Figure 2

Path diagram for modified model.

x₁=cancer stage; x₂=meta or recurrence; x₃=emotional support; x₄=tangible support; x₅=past sleep disturbance; x₆=use sleep pill in past; y₁= physical function; y₂=depression; y₃=anxiety; y₄=fighting spirit; y₅=dysfunctional beliefs & attitudes about sleep; y₆=cancer symptom experience; y₇=sleep disorders.

Table 1

Descriptive Statistics of Study Variables (N=291)

Table 2

Effects of Predictor Variables in the Modified Model (N=291)

^*p<.05; ^**p<.01.

SE=Standardized estimate; CR=Critical ratio; SMC=Squared multiple correlation.

Figure & Data

REFERENCES

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An Explanatory Model for Sleep Disorders in People with Cancer

J Korean Acad Nurs. 2011;41(4):460-470. Published online August 31, 2011

DOI: https://doi.org/10.4040/jkan.2011.41.4.460

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An Explanatory Model for Sleep Disorders in People with Cancer

Figure 1 Conceptual framework.

Figure 2 Path diagram for modified model. x1=cancer stage; x2=meta or recurrence; x3=emotional support; x4=tangible support; x5=past sleep disturbance; x6=use sleep pill in past; y1= physical function; y2=depression; y3=anxiety; y4=fighting spirit; y5=dysfunctional beliefs & attitudes about sleep; y6=cancer symptom experience; y7=sleep disorders.

Figure 1

Figure 2

An Explanatory Model for Sleep Disorders in People with Cancer

Table 1

Descriptive Statistics of Study Variables (N=291)

Table 2

Effects of Predictor Variables in the Modified Model (N=291)

^*p<.05; ^**p<.01.

SE=Standardized estimate; CR=Critical ratio; SMC=Squared multiple correlation.

Table 1 Descriptive Statistics of Study Variables (N=291)

Table 2 Effects of Predictor Variables in the Modified Model (N=291)

^*p<.05; ^**p<.01.

SE=Standardized estimate; CR=Critical ratio; SMC=Squared multiple correlation.