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- 2018
HealthKeywords: Health-related quality of life,chronic disease,multimorbidity,multimorbidity epidemiology,complex chronic conditions Abstract: This study examined the relationship between the number of comorbidities and health-related quality of life (HRQoL) and between select physical conditions and HRQoL. Differences in HRQoL in comparison to a normative sample were also examined. A cross-sectional study among people with multimorbidity (n = 401) attending a community-based, interdisciplinary health clinic was conducted. HRQoL was measured using the eight dimensions of the SF-36. Multiple linear regression and t-tests were used to analyse the data. A downward trend in HRQoL continued from 2 to 14 concurrent comorbidities. Patients with a higher number of comorbidities reported greater deficits in HRQoL, when age, gender, education and perceived social support were controlled for (beta = ?0.11 to ?0.31). The impact of the number of comorbidities was greatest for the bodily pain dimension of the SF-36 (beta = ?0.31). Deficits were greatest for people with gastrointestinal conditions and back pain or sciatica. Moderate to large deficits in HRQoL compared to a normative population were found (Cohen’s d = 0.54–1.16). Understanding associations between the number and type of physical comorbidities and HRQoL may assist clinical services to design broad but targeted interventions to optimize HRQoL in this group of people
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