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01-05-2011 | Uitgave 4/2011

Quality of Life Research 4/2011

Determinants of quality of life in type 2 diabetes population: the inclusion of personality

Tijdschrift:
Quality of Life Research > Uitgave 4/2011
Auteurs:
Ikuyo Imayama, Ronald C. Plotnikoff, Kerry S. Courneya, Jeffrey A. Johnson

Abstract

Objective

The identification of factors that affect quality of life (QoL) is crucial to ameliorate the increasing burden of diabetes. This study tested a multi-dimensional model that consisted of factors across three domains (personal, medical, and lifestyle factors) to understand determinants of QoL in adults with type 2 diabetes.

Research design and methods

A total of 1,147 adults with type 2 diabetes completed a self-report survey which assessed demographic factors, personality (activity sub-trait), medical factors (diabetes duration, insulin use, number of comorbidities, and Body Mass Index), lifestyle behaviors (smoking, physical activity, and diet), and two indicators of QoL [i.e., health-related quality of life (HRQL) and life satisfaction (LS)].

Results

The model explained 27.1 and 18.2% of the variance for HRQL and LS, respectively. Age was positively related to HRQL (β = 0.14, P < 0.01). Personality (sub-activity trait) was the strongest, independent variable in both HRQL (β = 0.25, P < 0.01) and LS (β = 0.25, P < 0.01) after controlling for demographic, medical, and lifestyle factors. Physical activity was positively associated (β = 0.14, P < 0.01) with HRQL but not with LS.

Conclusions

Personality may be a useful screening tool to distinguish adults with type 2 diabetes who are at risk for poor QoL.

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