The Big-Five personality traits and quality of life in elderly Malaysian patients with diabetes mellitus: A cross-sectional study
2021
While diabetes mellitus is highly prevalent in the elderly population with significant
impact on quality of life (QOL), we yet to know much about how personality traits
affect QOL in this patient population. A cross-sectional study was conducted at
Universiti Kebangsaan Malaysia Medical Centre with the aim to determine the
relationship between personality traits and QOL among the elderly (aged ≥60
years) with diabetes mellitus. Sociodemographic and clinical information were
obtained. QOL was assessed using the WHO Quality of Life-BREF (WHOQOL-BREF) questionnaire and personality traits were assessed using the Big Five
Inventory (BFI) questionnaire. Depression and anxiety were measured with Beck
Depression Inventory-II (BDI-II) and Generalized Anxiety Disorder 7-item (GAD-7)
scale, respectively, and controlled for in all analyses. There were in total 170 study
participants (median age=69.0 years; IQR: 65.0-73.0; 51.2% male). In stepwise
linear regression models, higher conscientiousness scores (β=0.156; P=0.044) and
lower neuroticism scores (β=-0.176; P=0.028) were associated with greater QOL
in the physical health domain. Higher extraversion scores (β=0.209; P=0.001) and
higher conscientiousness scores (β=0.248; P<0.001) were associated with greater
QOL in the psychological health domain. Higher agreeableness scores (β=0.286;
P<0.001) were associated with greater QOL in the social relationship domain.
Finally, higher agreeableness scores (β=0.327; P<0.001) and lower neuroticism
scores (β=-0.223; P=0.001) were associated with greater QOL in the environment
domain. Personality traits were closely associated with all domains of QOL among
elderly patients with diabetes mellitus. Premorbid personality may have important
role in moderating the impact of diabetes mellitus on the lives of elderly patients.
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