| Summary: | 碩士 === 國立台北護理學院 === 護理研究所 === 90 === Abstract
The purpose of this study is to test relationships between illness perceptions, mood, disability and quality of life in a group of patients with myasthenia gravis. The conceptual model for the study is primary derived from Leventhal’s self-regulation model. The study use a cross sectional, exploratory and correlational design. Data From 100 patients who visited the MG clinic at a medical center in Taipei were collected. Measures include Illness Perception Questionnaire, The Hospital Anxiety and Depression Scale, Incapacity Status Scale, Medical Outcome Study Short-Form General Health Survey MOS SF-36, and selected demographic and MG related variables. Data were analyzed by using the SPSS 10.0 statistical package. Statistical methods applied were mean, SD, frequency, Pearson’s correlations, and stepwise regression analyses.
Correlational results indicated that the illness identity was related to anxiety (r = -.45, p < .01), depression (r = -.32, p <. 01), physical component（r = .32, p <. 01）and mental components ( r = .46, p < .01) of quality of life (QOL). Illness cause was related to anxiety (r = .42, p < .01), disability (r = .24, p < .05), physical component（r = -.26, p < .01）and mental component (r = -.38, p < .01) of QOL. Illness timeline was related to anxiety (r = .29, p < .01) and physical component of quality of life (r = -.36, p < .01). Whereas, illness consequence was related to anxiety（r = .43, p < .01）, depression（r = 25, p < .05）, disability( r = 26, p < .01), physical component（r = -.36, p < .01）and mental component( r = -.50, p < .01) of QOL.
Stepwise regression analyses showed that after controlling for demographic and disease related variables, 29.4% of the variance in disability can be significantly explained by illness identity and depression; 39.4% of the variance in physical component of quality of life can be explained by timeline and disability; a total of 55.9% of the variance in mental component of quality of life can be explained by illness identity, cause, timeline, consequence, depression and disability.
These findings could provide vital information for nurses who are taking care of MG patients.
Key Words: Myasthenia gravis, Illness perception, Mood, Disability
Quality of life
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