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Severity and depression can impact quality of life in patients with myasthenia gravis
Mohammed H Alanazy1, Rahaf S Binabbad1, Norah I Alromaih1
1Department of Internal Medicine, King Saud University Medical City and College of Medicine, King Saud University, Riyadh, Saudi Arabia.
Background:
The revised 15-item Myasthenia Gravis (MG) Quality of Life Questionnaire (MGQoL15R) is a validated scale of quality of life in patients with MG. We aimed to study the factors causing the variability within the Arabic version of the MGQoL15R (MGQoL15R-A).
Method:
A standardized questionnaire was completed by 118 patients. Correlations and hierarchical regression analyses were used to assess the contribution of sociodemographic variables, clinical factors, Patient Health Questionnaire-9 (PHQ9-A), and Generalized Anxiety Disorder-7 (GAD7-A) to the variability in the MGQoL15R-A.
Results:
The MGQoL15R-A was highly correlated with PHQ9-A (r = 0.76), and moderately correlated with GAD7-A (r = 0.52). Clinical factors and PHQ9-A independently explained 30.4% and 34.5% of the variability, respectively. Among the clinical factors, uncontrolled MG status, relapse within the past year, and a higher number of current MG therapies were significantly associated with a higher MGQoL15R-A score.
Conclusions:
MG severity and depressive symptoms (measured by PHQ9-A) can affect the MGQoL15R-A score.
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