Factors associated with placebo response in depression trials: A systematic review of published meta-analyses (1990–2017)

2018 ◽  
Vol 30 ◽  
pp. 12-21 ◽  
Author(s):  
Joep H. Schoemaker ◽  
Sanja Kilian ◽  
Robin Emsley ◽  
Ad J.J.M. Vingerhoets
2021 ◽  
Author(s):  
Mrs Esra Hassan ◽  
Prof Naji Tabet ◽  
n.farina not provided

Background: To develop evidence-based anti-stigma programmes for adolescents, underlying factors that drive dementia-related stigma in adolescents need to be captured. However, it is unclear which factors play a role in dementia attitude formation in adolescents. This is a protocol for a systematic review that will seek to identify factors associated with dementia attitudes in adolescents (10-18 years old). Methods: A systematic search strategy will be used to identify observational data in which factors are associated with dementia-related stigma and associated domains (e.g. attitudes, beliefs, perceptions). Systematic searches for articles will be conducted in the following databases: PubMed, PsycInfo, Web of Science, SCOPUS and Open Access Theses and Dissertations. Titles and abstracts will be screened with the assistance of machine learning software (ASReview), prior to reviewing full texts. Following data extraction, quality assessment of study and risk of bias will be assessed using the mixed methods appraisal tool (MMAT). The protocol is written in line with the Preferred Reporting Items for Systematic Reviews and Meta-analyses Protocol (PRISMA-P) guidelines. Results: Descriptive data of the studies will be reported in tables and summarised narratively and split into thematic headings guided by the results of the systematic review. Identifying which factors are implicated in attitudes towards people living with dementia will allow researchers to be better informed in which factors may be a useful target for more tailored and effective dementia related anti-stigma-initiatives. Discussion: The findings from this systematic review will help guide future research to identify groups that may be at the greatest risk of developing stigmatising attitudes and potential targets for future intervention.


2021 ◽  
pp. oemed-2020-107103
Author(s):  
James B Wallace ◽  
Phil M Newman ◽  
Aoife McGarvey ◽  
Peter G Osmotherly ◽  
Wayne Spratford ◽  
...  

Neck pain is a common complaint among fighter aircrew, impacting workforce health and operational capability. This systematic review aimed to identify, evaluate and synthesise the current evidence for factors associated with the occurrence of neck pain among fighter aircrew. Six electronic databases were searched in June 2019 and updated in June 2020 utilising the maximum date ranges. Included studies were appraised for methodological quality, ranked according to level of evidence and relevant data extracted. Where methods were homogeneous and data availability allowed, meta-analyses were performed. A total of 20 studies (16 cross sectional, one case–control, one retrospective cohort and two prospective cohort) were eligible for inclusion. Of the 44 factors investigated, consistent evidence was reported for greater occurrence of neck pain among aircrew operating more advanced aircraft and those exposed to more desk/computer work, while another 12 factors reported consistent evidence for no association. Of the 20 factors where meta-analyses could be performed, greater occurrence of neck pain was indicated for aircrew: flying more advanced aircraft, undertaking warm-up stretching and not placing their head against the seat under greater +Gz. Despite many studies investigating factors associated with neck pain among fighter aircrew, methodological limitations limited the ability to identify those factors that are most important to future preventive programmes. High-quality prospective studies with consistent use of definitions are required before we can implement efficient and effective programmes to reduce the prevalence and impact of neck pain in fighter aircrew. PROSPERO registration number: CRD42019128952.Neck pain is a common complaint among fighter aircrew, impacting workforce health and operational capability. This systematic review aimed to identify, evaluate and synthesise the current evidence for factors associated with the occurrence of neck pain among fighter aircrew.


2021 ◽  
Author(s):  
Adeteju A Ogunbameru ◽  
Rafael N Miranda ◽  
Joanna Bielecki ◽  
Beate Sander

Background: Long-term sequelae associated with pneumococcal sepsis (PS) in pediatric patients in existing literature is currently unclear. Aim: To review the evidence on sequelae and prognostic factors associated with PS among pediatric patients. Method: We conducted a systematic review following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses reporting guidelines. We screened six databases from their inception to January 15, 2021. Study population were neonates, infants, children and adolescents less than 18 years old with suspected or confirmed PS disease. Outcomes included sequelae types, prognostic factors, pooled death estimate and length of hospital stay (LOS) for survivors and deceased patients. Quality of studies was assessed using Joanna Briggs Institute appraisal checklists. Results: We screened 981 abstracts, and 24 full-text articles for final review. Septic shock was the most prevalent physical sequelae reported (13%, n=1492 patients). No functional, cognitive or neurological sequelae were reported in included studies. Meta-analysis of pooled mortality estimate was 14.6% (95%CI: 9.9 -19.4%). Prognostic factors associated with increased risk of PS sequelae and death included pediatric risk of mortality score ≥ 10 and co-infection with meningitis. LOS for survivors and non-survivors ranged between 5-30 days and 1-30 days. Nine included studies met at least 50% of the quality assessment criteria. Conclusion: Physical sequelae and death are the PS sequelae types currently identified in existing literature. Lack of information about other possible sequelae types suggests the long-term consequences of PS disease maybe underreported, especially in resource-limited settings. Future studies should consider exploring reasons for the existing of this knowledge gap.


BMJ Open ◽  
2017 ◽  
Vol 7 (9) ◽  
pp. e016314 ◽  
Author(s):  
Stella Samoborec ◽  
Rasa Ruseckaite ◽  
Lorena Romero ◽  
Sue M Evans

IntroductionGlobally, road transport accidents contribute substantially to the number of deaths and also to the burden of disability. Up to 50 million people suffer a transport-related non-fatal injury each year, which often leads to long-term disability. It has been shown that substantial number of people with minor injuries struggle to recover and the reasons are still not well explored.Despite the high prevalence, little is known about the factors hindering recovery following minor traffic-related injuries. The aim of this paper is to present a protocol for the systematic review aiming to understand biopsychosocial factors related to non-recovery and identify current gaps in the literature.Methods and analysisThe review will be conducted in compliance with the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Protocol guidelines. A search of the electronic databases, MEDLINE, EMBASE, Cochrane Central Register of Controlled trials, will be undertaken, in addition to Google Scholar and grey literature to identify studies in period from 2006 to 2016. Quantitative and qualitative research articles describing and identifying biopsychosocial factors associated with non-recovery and health outcomes such as pain, disability, functional recovery, health-related quality of life, post-traumatic stress disorder, depression, anxiety and return to work will be included. A conceptual framework developed to identify biopsychosocial factors will be applied to assure defined criterion.At present, there is little anticipation for meta-analyses due to the heterogeneity of factors and outcomes assessed. Therefore, a narrative synthesis based on study findings will be conducted.Ethics and disseminationEthical approval is not required as primary data will not be collected. Review results will be published as a part of thesis, peer-reviewed journal and conferences.Trialregistration numberPROSPEROregistration number: CRD42016052276.


2019 ◽  
Vol 15 (1) ◽  
Author(s):  
Andreas W. Oehm ◽  
Gabriela Knubben-Schweizer ◽  
Anna Rieger ◽  
Alexander Stoll ◽  
Sonja Hartnack

Abstract Background Lameness in dairy cows has been an ongoing concern of great relevance to animal welfare and productivity in modern dairy production. Many studies have examined associations between various factors related to housing, management, and the individual animal and the occurrence of lameness. The objective of this systematic review was to answer the research question “what are risk factors associated with lameness in dairy cows that are housed in free stall barns or tie stall facilities”. Furthermore, we performed a synthesis of current evidence on certain risk factors by means of a meta-analysis to illustrate the strength of their association with bovine lameness. Results Following pre-defined procedures and inclusion criteria in accordance with the PRISMA statement, two observers independently included 53 articles out of a pool of 1941 articles which had been retrieved by a broad literature research in a first step. 128 factors that have been associated with lameness were identified in those papers. Meta-analyses were conducted for five factors presented in six different studies: Body condition score, presence of claw overgrowth, days in milk, herd size, and parity. Results indicated that a body condition score of ≤2.5/5 is associated with increased odds of lameness. A higher risk of being lame was found for the presence of claw overgrowth, the first 120 days in milk, larger herd sizes, and increasing parity. Throughout the study, we encountered profound difficulties in retrieving data and information of sufficient quality from primary articles as well as in recovering comparable studies. Conclusions We learned that an abundance of literature on bovine lameness exists. To adequately address a problem of this importance to both animal welfare and economic viability, solid evidence is required in the future to develop effective intervention strategies. Therefore, a consistent working definition of lameness and specific risk factors should be an option to consider.


2017 ◽  
Vol 61 ◽  
pp. 234-241 ◽  
Author(s):  
Jennifer Donnan ◽  
Stephanie Walsh ◽  
Yannick Fortin ◽  
Janet Gaskin ◽  
Lindsey Sikora ◽  
...  

BMJ Open ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. e020715 ◽  
Author(s):  
Valirie Ndip Agbor ◽  
Noah Fongwen Takah ◽  
Leopold Ndemnge Aminde

IntroductionHypertension is the leading cardiovascular risk factor globally, associated with a high morbidity and mortality. The high prevalence of hypertension in sub-Saharan Africa (SSA) is associated with contrastingly low awareness, treatment and control rates. Adherence to medication remains a major determinant of optimal blood pressure control. This systematic review aims to determine the prevalence, and factors associated with adherence to antihypertensive pharmacotherapy among patients with hypertension in SSA.Methods and analysisWe will include studies published in Africa up to 31 December 2017. The following databases will be searched: PubMed, Embase, SCOPUS and Web of Science to identify potential studies without language restriction. To minimise chances of missing studies, resources specific to African literature such as WHO AFROLIB, African Index Medicus and African Journals Online will also be searched. Two reviewers will independently screen studies, extract data and critically appraise included studies for risk of bias, and a third reviewer will resolve discrepancies. A random-effects meta-analysis is planned to pool study-specific estimates to obtain a summary measure presented in Forest plots. Heterogeneity of included studies will be assessed using the χ2test on Cochrane’s Q statistic and quantified using I2. Publication bias will be assessed using the Egger’s test and funnel plots. This protocol has been prepared according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses for Protocols 2015 statement.Ethical and disseminationAn ethical approval is not required for the proposed study, as it will be based on already published data. The end report will be presented at conferences and published in a peer-reviewed journal.PROSPERO registration numberCRD42017079838.


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