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    Discrimination ability of ASDAS estimating disease activity status in patients with ankylosing spondylitis
    (Wiley-Blackwell, 2010) Nas, Kemal; Yildirim, Kadir; Cevik, Remzi; Karatay, Saliha; Erdal, Akin; Baysal, Ozlem; Altay, Zuhal
    Objectives: To investigate discrimination ability of the Assessment of Spondyloarthritis International Society (ASAS) endorsed disease activity score (ASDAS) versions evaluating low and high disease activity in an unselected group of patients with ankylosing spondylitis (AS). Methods: Patients consecutively included into the joint database of five university hospitals were analyzed for low or high disease activity according to different criteria. Standardized mean differences (SMD) for two ASDAS versions were evaluated. Results: The ASDAS versions (back pain, morning stiffness, patient global pain, pain/swelling of peripheral joints, plus either erythrocyte sedimentation rate or C-reactive protein) discriminated high and low disease activity in subgroups according to Bath Ankylosing Spondylitis Disease Activity Score (BASDAI) and ASAS remission/partial remission criteria. ASDAS versions were also not influenced by peripheral arthritis and correlated well with other outcome measurements and acute-phase reactants. The ASDAS versions performed better than patient-reported measures or acute-phase reactants discriminating high and low disease activity status. Conclusion: Both ASDAS versions, consisting of both patient-reported data and acute-phase reactants, performed well in discriminating low and high disease activity. Further longitudinal data may better estimate the usefulness of ASDAS to assess disease activity subgroups and treatment response.
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    Prevalence of atopic disorders in rheumatic diseases
    (Springer, 2013) Karatay, Saliha; Yildirim, Kadir; Ugur, Mahir; Senel, Kazim; Erdal, Akin; Durmus, Bekir; Baysal, Ozlem
    The aim of this study was to assess the point prevalences of hay fever, asthma, and atopic dermatitis in OA, RA, and AS, and to compare with healthy controls. A total of 935 patients and healthy controls were included. Demographic and clinical features were recorded, and a questionnaire assessing the existence of atopic disorders like asthma, hay fever, and atopic dermatitis in all groups was applied. Either atopy implied that an individual was either diagnosed with or had symptoms of one or more of these disorders, such as asthma, hay fever, or atopic dermatitis. When compared to the controls, only patients with AS had an increased risk for hay fever (OR 1.52, 95 % CI 1.00-2.41). Patients with RA had increased risks for hay fever, atopic dermatitis, and either atopy compared to the patients with OA (2.14, 95 % CI 1.18-3.89; 1.77, 95 % CI 1.00-3.18; and 3.45, 95 % CI 1.10-10.87, respectively). Steroid use had no effect on the prevalence of atopic disorders in patients with RA. Patients with OA, RA, and AS seem to have similar risks for asthma, atopic dermatitis, and either atopy to healthy controls. However, the prevalence of hay fever may increase in AS. Patients with RA have a higher risk of atopy than patients with OA.
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    Psychological status is associated with health related quality of life in patients with rheumatoid arthritis
    (Ios Press, 2011) Nas, Kemal; Sarac, Aysegul Jale; Gur, Ali; Cevik, Remzi; Altay, Zuhal; Erdal, Akin; Ersoy, Yuksel
    Objective: Rheumatoid arthritis (RA) is a chronic and disabling disease frequently effects physical and psychological well being. The aim of the present study was to determine the impact of psychological status on health related quality of life in patients with RA and also to assess which quality of life (QoL) instrument - disease specific and generic - is more prone to this effect. Methods: A total of 421 patients with RA recruited from joint database of five tertiary centers. Depression and anxiety risks were assessed by the Hospital Anxiety and Depression Scale (HADS); and quality of life assessed by Rheumatoid Arthritis Quality of Life (RAQoL), Nottingham Health Profile (NHP) and The Short Form 36 (SF 36) questionnaire. Results: Patients with higher risk for depression or anxiety had poorer quality of life compared to the patients without risk for depression or anxiety. Depression and anxiety scores significantly correlated with quality of life questionnaires. There was significant association between anxiety and depression with worsening in both disease specific and generic health related quality of life. However, RAQoL showed more association with depression and anxiety levels. Conclusion: Higher depression and anxiety risks showed increased deterioration in quality of life. Compared to generic QoL scales, RAQoL scale, a disease specific QoL instrument, is much more influenced by depression and anxiety.