health-related quality of life and related factors in patients with fibromyalgia: a cross-sectional study

Background: fibromyalgia syndrome (fms) is a chronic musculoskeletal condition, which can reduce the quality of life (qol). objectives: this study aimed to evaluate the impact of fms on health-related quality of life (hrqol) and the possible related factors such as sociodemographic and psychological variables. methods: in this cross-sectional study, 150 women patients with fms were included who visited a psychosomatic clinic at a referral center in northern iran. the samples were selected in a consecutive procedure from april 2019 to march 2019. sociodemographic variables, hrqol score [36-item short form (sf-36) health survey], and the pittsburgh sleep quality index (psqi) were recorded. data were analyzed using the spss statistics software (ver. 24). the quantitative data were reported as mean ± sd, and the qualitative variables were presented as frequency and percentage. also, analysis was performed using analytical tests such as chi-square test (χ 2). p < 0.05 was considered to be significant. results: the mean (sd) age was 42.35 (11.73) years. the mean physical and mental health scores were 33.45 (16.22) and 48.99 (18.19), respectively. moreover, 88% of patients had moderate-to-severe sleep disorder, and those who did not, had a better physical and mental health status [42.7 (14.1) vs. 32.2 (16.1), p-value = 0.009 and 62.2 (16.3) vs. 47.2 (17.7), p-value = 0.001, respectively]. history of depression according to self-reporting was associated with worse mental health subscale scores [44.4 (16.8 vs. 52.4 (18.5), p-value = 0.007], and lower scores in social functioning and emotional well-being (p-value = 0.012, p-value = 0.001, respectively). being postmenopausal was associated with a lower physical health quality (p-value = 0.049). body mass index (bmi) reversely correlated with hrqol subscales (r = -0.163, p-value = 0.046), but the subscales were not affected by the level of income (p-value = 0.644, p-value = 0.170, respectively). conclusions: patients with fibromyalgia report a considerable significant impact on their quality of life and impaired sleep quality. assessment of sleep quality and qol are needed in patients with fibromyalgia.