J Korean Acad Nurs.  2011 Aug;41(4):460-470. 10.4040/jkan.2011.41.4.460.

An Explanatory Model for Sleep Disorders in People with Cancer

Affiliations
  • 1Department of Nursing, Jeonbuk Science College, Jeongeup, Korea. joha0219@hanmail.net
  • 2College of Nursing, Yonsei University, Seoul, Korea.

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 chi2/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.

Keyword

Neoplasms; Sleep disorders

MeSH Terms

Anxiety
Depression
Female
Hospitals, University
Humans
Male
Middle Aged
*Models, Theoretical
Neoplasms/*complications/*diagnosis/psychology
Questionnaires
Self Concept
Sleep Disorders/epidemiology/*etiology/*psychology
Social Support

Figure

  • 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.


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