Sleep disturbance in Moroccan patients with ankylosing spondylitis: prevalence and relationships with disease-specific variables, psychological status and quality of life.

Sleep disturbance is often reported by the patients with ankylosing spondylitis (AS), with awakenings produced by inflammatory pain. There are limited studies about sleep disturbance on these patients, and especially its association with psychological state and quality of life to examine the prevalence of sleep disturbance and to assess its association with disease-specific variables, psychological status and quality of life. One hundred and ten patients were included in this cross-sectional study according to the modified New York criteria for AS. Clinical and biological parameters were evaluated. Sleep disturbance was assessed by the fourth item of Hamilton Anxiety Scale. Psychological status was assessed by The Hospital Anxiety and Depression Scale including depression subscale and anxiety subscale. The quality of life was evaluated by the short form-36 (SF-36). Sleep disturbance was found in 64.5 %, depression in 55.5 % and anxiety in 60.9 % amongst our patients. Significantly, worse pain, higher disease activity and functional disability were present in patients with sleep disturbance. Likewise, sleep problems were significantly higher in patients with depression, anxiety and in patients with low scores of the SF36. Multivariate logistic regression analysis revealed that the pain (OR = 1.019) and depression (OR = 1.304) were independent risk factors that influenced sleep disturbance. Sleep problems are prevalent amongst Moroccan patients with AS. Our findings suggest that pain and depression were the independent risk factors that influenced the sleep disturbance and hence, the need for evaluation and optimal management of pain and depression to improve sleep quality in AS patients.

Psychometric evaluation of the Arabic version of the multidimensional assessment of fatigue scale (MAF) for use in patients with ankylosing spondylitis.

Fatigue is a frequent symptom during ankylosing spondylitis (AS) often under estimated which needs to be measured properly with respect to its intensity by appropriate measures, such as the multidimensional assessment of fatigue (MAF). The aims of this study were to translate into the classic Arabic version of the MAF questionnaire and to validate its use for assessing fatigue in Moroccan patients with AS. The MAF contains 16 items with a global fatigue index (IGF). The MAF was translated and back-translated to arabic, pretested and reviewed by a committee following the Guillemin criteria (J Clin Epidemiol 46:1417-1432, 1993). It was then validate on 110 Moroccan patients with AS. Reliability for the 3-day test-retest was assessed using internal consistency by Cronbach's alpha coefficient and the intra-class correlation coefficient (ICC). External construct validity was assessed by correlation with pain, activity of disease and other keys variable. The reproducibility of the 15 items was satisfactory with a kappa statistics of agreement superior to 0.6. The ICC for IGF score reproducibility was good and reached 0.98 (IC 95%, 0.96-0.99). The internal consistency was at 0.991 with Cronbach's alpha coefficient. The construct validity showed a positive correlation between MAF and the axial (r = 0.34) and peripheral (r = 0.32) visual analogical scale, the Bath ankylosing spondylitis disease activity index (BASDAI) (r = 0.77), the first item of BASDAI (r = 0.85), the functional disability by the Bath ankylosing spondylitis functional index (r = 0.64), the erythrocyte sedimentation rate (r = 0.43) and the C reactive protein (r = 0.30) (for all P < 0.001). There was no statistical correlation between MAF and the other variables. The Arabic version of the MAF has good comprehensibility, internal consistency, reliability and validity for the evaluation of Arabic speaking patients with AS.

Psychological status in Moroccan patients with ankylosing spondylitis and its relationships with disease parameters and quality of life.

BACKGROUND: The evaluation of emotional status is an important parameter in management of rheumatic diseases. There are few studies evaluating the psychological status in ankylosing spondylitis (AS) and its relationships with disease parameters and quality of life. OBJECTIVE: In this study, we evaluated the psychological status in Moroccan patients with AS and its relationships with the activity of the disease, the functional status, and the quality of life. PATIENTS: One hundred ten patients were included in this cross-sectional study according to the modified New York criteria for AS. Psychological status was assessed by the Hospital Anxiety and Depression Scale (HADS) including the depression and anxiety subscales. The quality of life was evaluated by the Short Form 36. RESULTS: Depression was found in 55.5% and anxiety in 60% among our patients. The HADS depression and anxiety subscales were significantly correlated with clinical parameters and with worsening in all domains of the Short Form 36.Multivariate logistic regression analysis revealed that role limitations due to emotional problems, vitality, and general health perception were independent risk factors of anxiety. The Bath Ankylosing Spondylitis Functional Index, vitality, and role limitations due to emotional problems were the independent factors that influenced the risk of depression. CONCLUSION: This study suggests that depression and anxiety are frequent in AS. Impaired quality of life and functional disability seemed to be independent risk factors of psychological disorders. Therefore, assessment and management of patients with AS should take into account the evaluation and management of their psychological disorders and improvement of their functional disability.

Comparison of the BASDAI and the miniBASDAI in assessing disease activity in patients with ankylosing spondylitis.

The BASDAI (Bath Ankylosing Spondylitis Disease Activity Index) is the most widely used instrument for the assessment of disease activity in ankylosing spondylitis (AS). Objective. The aims to investigate whether the alternative BASDAI, here termed as the miniBASDAI [(Question (Q) 1 fatigue + Q2 spinal pain) + mean of (Q5 strength morning stiffness + Q6 duration morning stiffness)] / 3], measures disease activity more accurately in the subgroup of AS patients without peripheral manifestations. One hundred and ten patients were included in this cross-sectional study according to the modified New York criteria for AS. Clinical and biological parameters were evaluated. The disease activity was evaluated by the BASDAI. We calculated the miniBASDAI by omitting both the peripheral joints and the enthesitis questions: questions 3 and 4. Patients were dichotomized into a "P+" group if peripheral manifestations were present (at least arthritis or enthesitis) and a "P-" group, the subgroup without peripheral involvement (with either arthritis or enthesitis). Correlation of the BASDAI and miniBASDAI with other disease parameters were examined with the Spearman's rank correlation analysis. One hundred and ten patients were recruited. The percentage of patients with pure axial disease manifestation without peripheral involvement "P - group" was 42.7%. We found a similarly good correlation of the miniBASDAI with patient global, physician on disease activity, BASFI, ESR and CRP if compared to the correlation of the original BASDAI with these disease parameters, also in the group without peripheral involvement. Our study suggests that the BASDAI remains valid in assessing disease activity in AS patients with and without peripheral manifestations.