Short-Form 12 or Short-Form 36 to measure quality-of-life changes in dialysis patients?

Clinical epidemiolog

General distress and symptoms of anxiety and depression: A factor analysis in two cohorts of dialysis patients

Objective: Depression and anxiety often coexist in patients with end -stage -kidney disease. Recently, studies showed that a composite ?general distress score ? which combines depression and anxiety symptoms provides a good fit in dialysis and oncology patients. We aim to investigate if the three most frequently used self -report questionnaires to measure depression and anxiety in dialysis patients are sufficiently unidimensional to warrant the use of such a general distress score in two cohorts of dialysis patients. Methods: This study includes two prospective observational cohorts of dialysis patients (total n = 749) which measured depression and anxiety using Beck Depression Inventory (BDI), Beck Anxiety Inventory (BAI) and Hospital Anxiety and Depression Scale (HADS). Confirmatory factor analyses was used to investigate both a strictly unidimensional model and a multidimensional bifactor model that includes a general distress, depression and anxiety factor. The comparative fit index (CFI) and The Root Mean Square Error of Approximation (RMSEA) were used as model fit indices. Results: Factor analysis did not show a good fit for a strictly unidimensional general distress factor for both the BDI/BAI and HADS (CFI 0.690 and 0.699, RMSEA 0.079 and 0.125 respectively). The multidimensional model performed better with a moderate fit for the BDI/BAI and HADS (CFI 0.873 and 0.839, RMSEA 0.052 and 0.102). Conclusions: This data shows that the BDI/BAI and HADS are insufficiently unidimensional to warrant the use of a general distress score in dialysis patients without also investigating anxiety and depression separately. Future research is needed whether the use of a general distress score might be beneficial to identify patients in need of additional (psychological) support.Clinical epidemiolog

Religiousness and Symptoms of Depression in Native and Immigrant Chronic Dialysis Patients in the Netherlands

For immigrant chronic dialysis patients, religious behavior and religious coping may have a different impact on depressive symptoms compared to native patients. This study aims to describe both cross-sectional and longitudinal associations between religious behavior and coping with symptoms of depression for 281 native and 277 immigrant dialysis patients in the Netherlands. A higher prevalence of depressive symptoms was found in immigrant compared to native patients (49% vs. 36%). No significant cross-sectional or longitudinal associations were found in both groups between religious behavior and positive religious coping with depressive symptoms. Strong significant cross-sectional associations were found between negative religious coping items and depressive symptoms in both groups, while no longitudinal associations were found. So, similar impact of religiousness on the presence of depressive symptoms was found for both native and immigrant dialysis patients. Therefore, these results do not explain the higher prevalence of depressive symptoms found in immigrant chronic dialysis patients compared to native patients.Clinical epidemiolog

Religiousness and symptoms of depression in native and immigrant chronic dialysis patients in the Netherlands

For immigrant chronic dialysis patients, religious behavior and religious coping may have a different impact on depressive symptoms compared to native patients. This study aims to describe both cross-sectional and longitudinal associations between religious behavior and coping with symptoms of depression for 281 native and 277 immigrant dialysis patients in the Netherlands. A higher prevalence of depressive symptoms was found in immigrant compared to native patients (49% vs. 36%). No significant cross-sectional or longitudinal associations were found in both groups between religious behavior and positive religious coping with depressive symptoms. Strong significant cross-sectional associations were found between negative religious coping items and depressive symptoms in both groups, while no longitudinal associations were found. So, similar impact of religiousness on the presence of depressive symptoms was found for both native and immigrant dialysis patients. Therefore, these results do not explain the higher prevalence of depressive symptoms found in immigrant chronic dialysis patients compared to native patients.Clinical epidemiolog

Ethnic Differences in the Association of Depressive Symptoms with Clinical Outcome in Dialysis Patients

Background Studies show mixed results on the association between depressive symptoms and adverse clinical outcomes in patients on dialysis therapy. Ethnicity may play a role in these heterogeneous results. No studies have investigated the interplay between ethnicity and depressive symptoms on clinical outcome in this patient population. This study aims to examine interaction between ethnicity and depressive symptoms on hospitalization and mortality in dialysis patients. Methods A multi-ethnic cohort in 10 dialysis centers included 687 dialysis patients between 2012 and 2017, with an average follow-up of 3.2 years. Depressive symptoms were measured using the Beck Depression Inventory. Interaction was assessed by investigating excess risk on an additive scale using both absolute rates and relative risks. Multivariable regression models included demographic, social, and clinical variables. Results Adverse outcomes are more pronounced in native patients, compared to immigrant patients. The risk for mortality and hospitalization is considerably higher in native patients compared to immigrants. An excess risk on an additive scale indicates the presence of possible causal interaction. Conclusions Depressive symptoms are a risk factor for hospitalization and mortality, especially in native dialysis patients. Adverse clinical events associated with depressive symptoms differ among ethnic groups. This differential association could play a role in the conflicting findings in literature. Ethnicity is an important factor when investigating depressive symptoms and clinical outcome in dialysis patients. Future research should focus on the possible mechanisms and pathways involved in these differential associations.Clinical epidemiolog

Anxiety Symptoms, Mortality, and Hospitalization in Patients Receiving Maintenance Dialysis: A Cohort Study

Rationale & Objective: Anxiety symptoms are common in dialysis patients and have a large impact on quality of life. The association of anxiety symptoms with adverse clinical outcomes in dialysis patients is largely unknown. This study examined the association of anxiety symptoms with hospitalization and mortality in patients receiving maintenance dialysis.Study Design: Prospective cohort study.Setting & Participants: Maintenance dialysis patients treated at 10 dialysis centers in the Netherlands between 2012 and 2016.Exposures: Time-varying symptoms of anxiety and depression using the Beck Anxiety Inventory and Beck Depression Inventory.Outcomes: All-cause mortality, 1-year hospitalization rate, and hospital length of stay.Analytical Approach: Cox proportional hazards and Poisson regression models adjusted for sociodemographic and clinical variables. Sensitivity analyses included multiple imputation of missing data and restriction to incident patients only.Results: 687 patients were included, composed of 433 prevalent and 242 incident dialysis patients. Median follow-up time was 3.1 (IQR, 3.0-3.5) years, during which 172 deaths occurred. 22% of patients had anxiety symptoms and 42% had depressive symptoms. Anxiety symptoms were associated with all-cause mortality and 1-year hospitalization rate and length of stay in all multivariable models. Anxiety symptoms showed a clear dose-response relationship with mortality.Limitations: Depression and anxiety often coexist and share symptoms. The observational design of this study limits inferences about causal mechanisms between anxiety and clinical outcomes.Conclusions: Anxiety symptoms are independently associated with increased risk for mortality and 1-year hospitalization. Anxiety symptoms are a clinically relevant risk factor for morbidity and mortality in dialysis patients and warrant further research on effective treatment.Clinical epidemiolog

The association of acculturation and depressive and anxiety symptoms in immigrant chronic dialysis patients

Clinical epidemiolog