scholarly journals The incidence and prevalence of psychiatric disorders in multiple sclerosis: A systematic review

2015 ◽  
Vol 21 (3) ◽  
pp. 305-317 ◽  
Author(s):  
Ruth Ann Marrie ◽  
Stephen Reingold ◽  
Jeffrey Cohen ◽  
Olaf Stuve ◽  
Maria Trojano ◽  
...  

Background: Psychiatric comorbidity is associated with lower quality of life, more fatigue, and reduced adherence to disease-modifying therapy in multiple sclerosis (MS). Objectives: The objectives of this review are to estimate the incidence and prevalence of selected comorbid psychiatric disorders in MS and evaluate the quality of included studies. Methods: We searched the PubMed, PsychInfo, SCOPUS, and Web of Knowledge databases and reference lists of retrieved articles. Abstracts were screened for relevance by two independent reviewers, followed by full-text review. Data were abstracted by one reviewer, and verified by a second reviewer. Study quality was evaluated using a standardized tool. For population-based studies we assessed heterogeneity quantitatively using the I2 statistic, and conducted meta-analyses. Results: We included 118 studies in this review. Among population-based studies, the prevalence of anxiety was 21.9% (95% CI: 8.76%–35.0%), while it was 14.8% for alcohol abuse, 5.83% for bipolar disorder, 23.7% (95% CI: 17.4%–30.0%) for depression, 2.5% for substance abuse, and 4.3% (95% CI: 0%–10.3%) for psychosis. Conclusion: This review confirms that psychiatric comorbidity, particularly depression and anxiety, is common in MS. However, the incidence of psychiatric comorbidity remains understudied. Future comparisons across studies would be enhanced by developing a consistent approach to measuring psychiatric comorbidity, and reporting of age-, sex-, and ethnicity-specific estimates.

2015 ◽  
Vol 21 (3) ◽  
pp. 263-281 ◽  
Author(s):  
Ruth Ann Marrie ◽  
Jeffrey Cohen ◽  
Olaf Stuve ◽  
Maria Trojano ◽  
Per Soelberg Sørensen ◽  
...  

Background: Comorbidity is an area of increasing interest in multiple sclerosis (MS). Objective: The objective of this review is to estimate the incidence and prevalence of comorbidity in people with MS and assess the quality of included studies. Methods: We searched the PubMed, SCOPUS, EMBASE and Web of Knowledge databases, conference proceedings, and reference lists of retrieved articles. Two reviewers independently screened abstracts. One reviewer abstracted data using a standardized form and the abstraction was verified by a second reviewer. We assessed study quality using a standardized approach. We quantitatively assessed population-based studies using the I2 statistic, and conducted random-effects meta-analyses. Results: We included 249 articles. Study designs were variable with respect to source populations, case definitions, methods of ascertainment and approaches to reporting findings. Prevalence was reported more frequently than incidence; estimates for prevalence and incidence varied substantially for all conditions. Heterogeneity was high. Conclusion: This review highlights substantial gaps in the epidemiological knowledge of comorbidity in MS worldwide. Little is known about comorbidity in Central or South America, Asia or Africa. Findings in North America and Europe are inconsistent. Future studies should report age-, sex- and ethnicity-specific estimates of incidence and prevalence, and standardize findings to a common population.


2014 ◽  
Vol 21 (3) ◽  
pp. 342-349 ◽  
Author(s):  
Ruth Ann Marrie ◽  
Nadia Reider ◽  
Jeffrey Cohen ◽  
Maria Trojano ◽  
Per Soelberg Sorensen ◽  
...  

Background: Several studies have suggested that comorbid neurologic disorders are more common than expected in multiple sclerosis (MS). Objective: To estimate the incidence and prevalence of comorbid seizure disorders and sleep disorders in persons with MS and to evaluate the quality of studies included. Methods: The PUBMED, EMBASE, Web of Knowledge, and SCOPUS databases, conference proceedings, and reference lists of retrieved articles were searched. Two reviewers independently screened abstracts to identify relevant articles, followed by full-text review of selected articles. We assessed included studies qualitatively and quantitatively ( I2 statistic), and conducted meta-analyses among population-based studies. Results: We reviewed 32 studies regarding seizure disorders. Among population-based studies the incidence of seizure disorders was 2.28% (95% CI: 1.11–3.44%), while the prevalence was 3.09% (95% CI: 2.01–4.16%). For sleep disorders we evaluated 18 studies; none were population-based. The prevalence ranged from 0–1.6% for narcolepsy, 14.4–57.5% for restless legs syndrome, 2.22–3.2% for REM behavior disorder, and 7.14–58.1% for obstructive sleep apnea. Conclusion: This review suggests that seizure disorders and sleep disorders are common in MS, but highlights gaps in the epidemiological knowledge of these conditions in MS worldwide. Other than central-western Europe and North America, most regions are understudied.


2014 ◽  
Vol 21 (3) ◽  
pp. 282-293 ◽  
Author(s):  
Ruth Ann Marrie ◽  
Nadia Reider ◽  
Jeffrey Cohen ◽  
Olaf Stuve ◽  
Per S Sorensen ◽  
...  

Background: As new therapies emerge which increase the risk of autoimmune disease it is increasingly important to understand the incidence of autoimmune disease in multiple sclerosis (MS). Objective: The purpose of this review is to estimate the incidence and prevalence of comorbid autoimmune disease in MS. Methods: The PUBMED, EMBASE, SCOPUS and Web of Knowledge databases, conference proceedings, and reference lists of retrieved articles were searched, and abstracts were independently screened by two reviewers. The data were abstracted by one reviewer using a standardized data collection form, and the findings were verified by a second reviewer. We assessed quality of the included studies using a standardized approach and conducted meta-analyses of population-based studies. Results: Sixty-one articles met the inclusion criteria. We observed substantial heterogeneity with respect to the populations studied, methods of ascertaining comorbidity, and reporting of findings. Based solely on population-based studies, the most prevalent autoimmune comorbidities were psoriasis (7.74%) and thyroid disease (6.44%). Our findings also suggest an increased risk of inflammatory bowel disease, likely uveitis and possibly pemphigoid. Conclusion: Fewer than half of the studies identified were of high quality. Population-based studies that report age, sex and ethnicity-specific estimates of incidence and prevalence are needed in jurisdictions worldwide.


2014 ◽  
Vol 21 (3) ◽  
pp. 318-331 ◽  
Author(s):  
Ruth Ann Marrie ◽  
Nadia Reider ◽  
Jeffrey Cohen ◽  
Olaf Stuve ◽  
Maria Trojano ◽  
...  

Background: Findings regarding the prevalence of vascular comorbidities in multiple sclerosis (MS) are conflicting. Objective: The objective of this review is to estimate the incidence and prevalence of vascular comorbidities and predisposing comorbidities in persons with MS and to assess the quality of the included studies. Methods: The PubMed, EMBASE, SCOPUS and Web of Knowledge databases, conference proceedings, and reference lists of retrieved articles were searched. One reviewer abstracted data using a standardized data collection form, while the second reviewer verified the abstraction. Included studies were assessed qualitatively. Quantitatively, we assessed studies using the I2 statistic, and conducted meta-analyses for population-based studies only. Results: The prevalence of hypertension and hyperlipidemia exceeded 10% in the MS population and increased with age. While the prevalence of ischemic heart disease, congestive heart failure, and stroke were less than 5% overall, the prevalence of these conditions exceeded expectations when compared to the general population. Cardiac valvular disease, however, affected the MS population less often than expected. Problems with study quality were common. Conclusion: Despite the relatively high prevalence of some vascular comorbidities in the MS population, important gaps exist in our understanding of their epidemiology. Most of our knowledge is based on studies conducted in a small number of regions.


2014 ◽  
Vol 21 (3) ◽  
pp. 294-304 ◽  
Author(s):  
Ruth Ann Marrie ◽  
Nadia Reider ◽  
Jeffrey Cohen ◽  
Olaf Stuve ◽  
Maria Trojano ◽  
...  

Background: Studies of cancer incidence and prevalence in multiple sclerosis (MS) have produced conflicting results. Objective: To estimate the incidence and prevalence of cancer in persons with MS and review the quality of included studies. Methods: We searched the PUBMED, SCOPUS, Web of Knowledge, and EMBASE databases, conference proceedings, and reference lists of all articles retrieved. Abstracts were screened for relevance by two reviewers. Data from included articles were captured using a standardized form, and the abstraction was verified by a second reviewer. We assessed quality of the included studies. We quantitatively assessed studies using the I2 statistic, and conducted meta-analyses for population-based studies. Results: We identified 38 studies. Estimates for incidence and prevalence varied substantially for most cancers. In population-based studies, cervical, breast, and digestive cancers had the highest incidence. The risk of meningiomas and urinary system cancers appeared higher than expected, while the risks of pancreatic, ovarian, prostate and testicular cancer were lower than expected.Conclusion: The complexity of understanding cancer risk in MS is augmented by inconsistencies in study design, and the relative paucity of age, sex and ethnicity-specific risk estimates from which the strong impact of age on the incidence of cancers can be assessed.


2021 ◽  
pp. 135245852110196
Author(s):  
Jan Hillert ◽  
Jon A Tsai ◽  
Mona Nouhi ◽  
Anna Glaser ◽  
Tim Spelman

Background: Teriflunomide and dimethyl fumarate (DMF) are first-line disease-modifying treatments for multiple sclerosis with similar labels that are used in comparable populations. Objectives: The objective of this study was to compare the effectiveness and persistence of teriflunomide and DMF in a Swedish real-world setting. Methods: All relapsing-remitting multiple sclerosis (RRMS) patients in the Swedish MS registry initiating teriflunomide or DMF were included in the analysis. The primary endpoint was treatment persistence. Propensity score matching was used to adjust comparisons for baseline confounders. Results: A total of 353 teriflunomide patients were successfully matched to 353 DMF. There was no difference in the rate of overall treatment discontinuation by treatment group across the entire observation period (hazard ratio (HR) = 1.12; 95% confidence interval (CI) = 0.91–1.39; p = 0.277; reference = teriflunomide). Annualised relapse rate (ARR) was comparable ( p = 0.237) between DMF (0.07; 95% CI = 0.05–0.10) and teriflunomide (0.09; 95% CI = 0.07–0.12). There was no difference in time to first on-treatment relapse (HR = 0.78; 95% CI = 0.50–1.21), disability progression (HR = 0.55; 95% CI = 0.27–1.12) or confirmed improvement (HR = 1.17; 95% CI = 0.57–2.36). Conclusion: This population-based real-world study reports similarities in treatment persistence, clinical effectiveness and quality of life outcomes between teriflunomide and dimethyl fumarate.


Author(s):  
Tasia Esterita ◽  
Sheilla Dewi ◽  
Felicia Grizelda Suryatenggara ◽  
Glenardi Glenardi

Background and Aims: Functional dyspepsia (FD) symptoms may lead to depression or anxiety in affected individuals and vice versa. These individuals often have more serious somatic symptoms, longer disease recovery time, and tend to consume more medical resources and health care costs. Therefore, recognition of depression and anxiety is crucial to improve clinical outcome in FD patients. The aim of this study is to systematically review the association of functional dyspepsia with depression and anxiety. Methods: This systematic review was reported following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) criteria. A Literature search was carried out with PubMed and ProQuest databases from 1 January 2010 to 5 October 2020. The outcomes of interest were association of functional dyspepsia with depression and anxiety. The quality of each study was assessed using the Joanna Briggs Institute (JBI) tool. Results: A total of 13 studies involving 14,076 subjects were included in this review. Almost all of the studies showed that prevalence of depression or anxiety is higher in patients with FD compared to controls. This is implied by a higher mean score on the depression and anxiety questionnaire assessment tools or a positive correlation in the odds ratio. FD is known to affect more females than males, but psychological links were stronger in males. Moreover, prevalence of depression and anxiety symptoms in patients with refractory FD (63.3% and 61.5%) was higher compared to non-refractory FD (20.9% and 23.3%) and healthy patients (10% and 10%). Conclusion: There is a significant association of FD with depression and anxiety. Thus, identifying psychological factors in FD patients is essential to help clinicians determine the best choice of treatment and improve the prognosis and quality of life of the patients.


2019 ◽  
Vol 51 (1) ◽  
pp. 67-76 ◽  
Author(s):  
Malachy Bishop ◽  
Robert Fraser ◽  
Jian Li ◽  
Phillip D. Rumrill ◽  
Maura Burns ◽  
...  

2020 ◽  
Vol 29 ◽  
Author(s):  
Nickolas D. Frost ◽  
Thomas W. Baskin ◽  
Bruce E. Wampold

Abstract Aims The purpose of this review is to examine the replication attempts of psychotherapy clinical trials for depression and anxiety. We focus specifically on replications of trials that exhibit large differences between psychotherapies. The replicability of these trials is especially important for meta-analysis, where the inclusion of false-positive trials can lead to erroneous conclusions about treatment efficacy. Methods Standard replication criteria were developed to distinguish direct from conceptual replication methodologies. Next, an exhaustive literature search was conducted for published meta-analyses of psychotherapy comparisons. Trials that exhibited large effects (d > 0.8) were culled from these meta-analyses. For each trial, a cited replication was conducted to determine if the trial had been subsequently replicated by either ‘direct’ or ‘conceptual’ methods. Finally, a broader search was conducted to examine the extent of replication efforts in the psychotherapy literature overall. Results In the meta-analytic search, a total of N = 10 meta-analyses met the inclusion criteria. From these meta-analyses, N = 12 distinct trials exhibited large effect sizes. The meta-analyses containing more than two large effect trials reported evidence for treatment superiority. A cited replication search yielded no direct replication attempts (N = 0) for the trials with large effects, and N = 4 conceptual replication attempts of average or above average quality. However, of these four attempts, only two partially corroborated the results from their original trial. Conclusion Meta-analytic reviews are influenced by trials with large effects, and it is not uncommon for these reviews to contain several such trials. Since we find no evidence that trials with such large effects are directly replicable, treatment superiority conclusions from these reviews are highly questionable. To enhance the quality of clinical science, the development of authoritative replication criteria for clinical trials is needed. Moreover, quality benchmarks should be considered before trials are included in a meta-analysis, or replications are attempted.


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