Isabel Vázquez

Background: Depression is a frequent but often underdiagnosed comorbid disorder in dialysis patients. The Beck Depression Inventory–Second Edition (BDI-II) is a reliable and valid instrument for depression screening but is relatively long for repeated use in clinical practice. The aim of this study was to compare the BDI-II with the shorter questionnaires Beck Depression Inventory–FastScreen (BDI-FS), the depression subscale of the Hospital Anxiety Depression Scale (HADS-D), the Mental Health (MH) scale of the 36-item Short Form Health Survey (SF-36) and two items of the MH (‘So down in the dumps that nothing could cheer you up’ and ‘Downhearted and blue’) to determine the most efficient instruments for screening depressive symptoms in dialysis patients. Methods: A cross-sectional study was conducted involving patients from 14 health centres undergoing in-centre haemodialysis or peritoneal dialysis. All patients completed the BDI-II, HADS-D and MH scale. The sensitivity, specificity and positive and negative predictive values for each brief instrument were assessed relative to BDI-II ≥16. Results: Of the 145 patients included in the study (mean age 62 years; 66% male), 24.8% had depressive symptoms (BDI ≥16). The cut-off points with the highest sensitivity and negative predictive value for BDI-FS were ≥3 (91.7% and 96.1%, respectively) and ≥4 (80.6% and 92.4%, respectively) and for the HADS-D these were ≥4 (91.7% and 95.8%, respectively) and ≥5 (83.3% and 92.6%, respectively). The cut-off points for the total MH and the two items (considered separately or together) resulted in lower sensitivity (<80%) and lower negative predictive values (<90%). Conclusions: Both the BDI-FS and HADS-D are adequate screening tools for depression in the dialysis population. As the BDI-FS is easier to complete and score and enables identification of patients at risk of suicide, it may be the best alternative to the BDI-II for depression screening in dialysis patients in clinical settings.

Background: Fibromyalgia (FM) has been associated with decreased health-related quality of life (HRQoL), which has been linked to psychological variables such as anxiety, depression, coping, and social support. This study aimed to simultaneously analyse the association of these variables with HRQoL in FM patients and explore their mediating role in the relationship between somatic symptoms and HRQoL.Participants and procedure: A cross-sectional sample of 134 FM patients (97% women) with no other rheumatologic diseases followed in specialized healthcare services completed self-report questionnaires to evaluate pain, fatigue, sleep, anxiety, depression, coping, social support, and HRQoL.Results: The results indicated that FM patients experienced a negative impact on all dimensions of HRQoL, with anxiety primarily affecting the mental dimensions, and depression and social support affecting both physical and mental dimensions. Anxiety, depression, dysfunctional coping, and low social support were independent predictors of HRQoL and mediated the effect of somatic symptoms in the mental component of HRQoL.Conclusions: FM patients experience a negative impact on HRQoL, and anxiety, depression, coping and social support play an important role as independent predictors of this decrease, and as mediators of the effect of somatic symptoms in the mental dimen-sions of HRQoL. This underscores the importance of considering these psychological variables in the therapeutic approach to FM and suggests the need for interventions targeting anxiety, depression, dysfunctional coping, and low social support to improve HRQoL in FM patients.

Purpose Prior studies suggest that specialist care associates with improved health-related quality of life (HRQL) in asthmatic patients. However, there are limited studies focused on differences in HRQL among subspecialties. The aim of this study was to assess the differences in HRQL between adult asthmatic patients treated in pneumology or allergy practices, and to estimate to what extent the differences in HRQL can be explained by sociodemographic, clinical or psychological characteristics of patients from each specialty. Methods We recruited adult asthmatic outpatients from allergy and pneumology practices. Information on sociodemographic, clinical and psychological characteristics was collected, and HRQL was assessed with generic and disease-specific questionnaires. HRQL was compared between groups adjusting for sociodemographic, clinical and psychological characteristics. Results A total of 287 asthmatic patients participated in the study (105 from pneumology and 182 from allergy). Patients treated by pneumologists reported significantly poorer HRQL in physical dimensions of generic questionnaire and all dimensions of disease-specific questionnaire. Pneumology patients were older (p < .001) and had a lower education level (p < .001); a higher number of patients were in a non-active employment situation (p = .003) and had worse pulmonary function (p < .001), longer duration of disease (p = .020), higher prevalence of obesity (p < .001) and uncontrolled asthma (p < .001), and a higher rate of previous absenteeism (p = .001). Depression and the use of cognitive avoidance coping were also higher among pneumology patients (p = .050 and p = .022, respectively). There were not significant differences in HRQL between pneumology and allergy patients after adjustment for these sociodemographic, clinical and psychological characteristics. Conclusions Asthmatic patients treated by pneumologists reported poorer HRQL than patients treated by allergists, but this outcome is attributed to differences in several sociodemographic, clinical and psychological characteristics between the two groups of patients.

There is some evidence that quality of life measured by long disease-specific questionnaires may predict exacerbations in asthma and COPD, however brief quality of life tools, such as the Airways Questionnaire 20 (AQ20) or the Clinical COPD Questionnaire (CCQ), have not yet been evaluated as predictors of hospital exacerbations. To determine the ability of brief specific health-related quality of life (HRQoL) questionnaires (AQ20 and CCQ) to predict emergency department visits (ED) and hospitalizations in patients with asthma and COPD, and to compare them to longer disease-specific questionnaires, such as the St George´s Respiratory Questionnaire (SGRQ), the Chronic Respiratory Disease Questionnaire (CRQ) and the Asthma Quality of Life Questionnaire (AQLQ). We conducted a two-year prospective cohort study of 208 adult patients (108 asthma, 100 COPD). Baseline sociodemographic, clinical, functional and psychological variables were assessed. All patients completed the AQ20 and the SGRQ. COPD patients also completed the CCQ and the CRQ, while asthmatic patients completed the AQLQ. We registered all exacerbations that required ED or hospitalizations in the follow-up period. Differences between groups (zero ED visits or hospitalizations versus ≥ 1 ED visits or hospitalizations) were tested with Pearson´s X2 or Fisher´s exact test for categorical variables, ANOVA for normally distributed continuous variables, and Mann–Whitney U test for non-normally distributed variables. Logistic regression analyses were performed to estimate the predictive ability of each HRQoL questionnaire. In the first year of follow-up, the AQ20 scores predicted both ED visits (OR: 1.19; p = .004; AUC 0.723) and hospitalizations (OR: 1.21; p = .04; AUC 0.759) for asthma patients, and the CCQ emerged as independent predictor of ED visits in COPD patients (OR: 1.06; p = .036; AUC 0.651), after adjusting for sociodemographic, clinical, and psychological variables. Among the longer disease-specific questionnaires, only the AQLQ emerged as predictor of ED visits in asthma patients (OR: 0.9; p = .002; AUC 0.727). In the second year of follow-up, none of HRQoL questionnaires predicted exacerbations. AQ20 predicts exacerbations in asthma and CCQ predicts ED visits in COPD in the first year of follow-up. Their predictive ability is similar to or even higher than that of longer disease-specific questionnaires.

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