The JSS-TR is a valid and reliable instrument. It is a simple and effective tool which can be used to evaluate sleep disturbances in rheumatoid arthritis patients in both daily practice and clinical research.

The Turkish version of JSS is a valid and reliable instrument in PsA.

Fatigue is a common problem in patients with rheumatic disease. It may cause disability and poor quality of life. The aim of this study is to investigate fatigue in FMF patients as a disabling symptom and its associations with clinical and demographic variables. FMF patients were recruited into the study according to FMF Tel Hashomer criteria. Control group is composed of healthy individuals. Demographic and clinical features of the patients including PRAS scores were noted. Visual analogue score of pain (VAS-pain) and VAS-fatigue were used as clinical parameters. Pittsburgh Sleep Quality Index (PSQI), Multidimensional Assessment of Fatigue (MAF), Nottingham Health Profile (NHP), Fatigue Severity Scale (FSS), Fatigue Impact Scale (FIS) and Hospital Anxiety and Depression Scale (HADS) were filled out by both control and study group. Sixty-one FMF patients and 61 age and gender (44 female, 17 male in each group)-matched controls were enrolled into the study. Mean age of FMF and control group were 35.5 ± 11.8 and 35.8 ± 11.7 years, respectively. The mean disease duration was 82.5 ± 81.7 months. Difference between mean of VAS-pain, VAS-fatigue, PSQI total score, MAF, all subsets of NHP, FSS, FIS, and HADS scores of FMF patients was significantly higher than of control group (p = 0.0001). This study has shown that fatigue in FMF is associated with a number of psychological, sleep, quality of life and disease-related factors. FMF group had increased pain, fatigue, sleep disturbance and decreased quality of life compared to control group. FMF patients with fatigue may benefit from pharmacological and psychological interventions which target these factors.

Aim Ankylosing spondylitis (AS) affects sleep quality. Jenkins Sleep Scale (JSS) Evaluation Questionnaire is a simple and easy to understand scale. The aim of this study is to constitute validity and reliability of JSS‐TR in AS patients. Methods Jenkins Sleep Scale was translated and culturally adapted by using guidelines. Clinical and demographic data of AS patients were noted. Correlations with other functional parameters such as Multidimensional Assessment of Fatigue (MAF) scale, Ankylosing Spondylitis Quality of Life (ASQoL), Pittsburgh Sleep Quality Index (PSQI) were used to assess convergent validity of JSS‐TR (Turkish version). Discriminant validity was also assessed. Shapiro‐Wilk test was used as a test of normality. Spearman's rank correlation coefficient (rho) was used to assess the relation. Results Sixty patients (24 female and 36 male) with mean age of 39.6 ± 10.8 years were recruited. The JSS‐TR took an average of 1.5 minutes (±30 seconds) to complete. JSS‐TR had the strongest correlation with PSQI scores (ρ = 0.75) and moderate‐strong correlations with MAF, ASQoL, and Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) scores. There was insignificant correlation with non‐clinical parameters. Conclusions JSS‐TR is a valid, simple and feasible sleep instrument that can be easily applied to AS patients both in research and clinical settings.

Objectives To evaluate the relationship of fibromyalgia with enthesopathy, sleep, fatigue and quality of life in patients with psoriatic arthritis. Methods The psoriatic arthritis patients according to CASPAR criteria were included in the study. The diagnosis of fibromyalgia was based on 2016 ACR criteria. Demographic and clinical parameters were noted. Disease activity and enthesopathy were evaluated with Disease Activity Score‐28 (DAS‐28) and Maastricht Ankylosing Spondylitis Enthesitis Score (MASES), respectively. Functional assessment scales in this study were Psoriatic Arthritis Quality of Life (PsAQoL), Pittsburgh Sleep Quality Index (PSQI), Multidimensional Assessment of Fatigue (MAF). Fibromyalgia Impact Questionnaire (FIQ) was used to assess the functional status of fibromyalgia. The Mann‐Whitney U test and Spearman correlation coefficient (ρ) were used. Hierarchical multiple regression analysis used to examine the differential contributions to FIQ score. P < .05 was accepted as significant. Results We enrolled 50 PsA patients (31 female, 19 male) with a mean age of 49.5 years (SD: 10.2) and mean disease duration 7.5 years (SD: 7.5). Thirty‐two patients (64% of PsA patients) fulfilled ACR criteria for fibromyalgia. The mean scores of MASES, PSQI, MAF and PsAQoL were significantly higher in patients with fibromyalgia (P < .05). The correlations between FIQ and other functional parameters were as follows; MASES (ρ = 0.71, P < .0005), PSQI (ρ = 0.62, P < .0005), MAF (ρ = 0.60, P < .0005), PsAQoL (ρ = 0.61, P < .0005). A moderate correlation was existing between FIQ and DAS‐28 (ρ = 0.42, P = .03). Conclusions Coexistence of fibromyalgia in PsA patients is associated with the presence of enthesopathy, poor quality of life, sleep disturbance and fatigue.