scholarly journals Insight in psychosis and neuropsychological function

2006 ◽  
Vol 189 (3) ◽  
pp. 204-212 ◽  
Author(s):  
André Aleman ◽  
Niruj Agrawal ◽  
Kevin D. Morgan ◽  
Anthony S. David
Keyword(s):  
Psychotic Disorders ◽  
Data Extraction ◽  
Meta Analysis ◽  
Similar Degree ◽  
Neurocognitive Deficits ◽  
Neurocognitive Performance ◽  
Cognitive Domains ◽  
Neuropsychological Dysfunction ◽  
Impaired Awareness ◽  
Specific Association

BackgroundOne factor contributing to impaired awareness of illness (poor insight) in psychotic disorders may be neurocognitive deficits.MethodA systematic review and meta-analysis were conducted after data extraction. Following an overall analysis, in which measures of different cognitive domains were taken together, more finegrained analyses investigated whether there was a specific relation with frontal executive functioning, and whether this was influenced by diagnosis or the insight scales used.ResultsThere was a significant mean correlation between insight ratings and neurocognitive performance (mean weighted r=0.17, 95% CI 0.13–0.21, z=8.3, P < 0.0001), based on 35 studies with a total of 2354 individuals. Further analyses revealed that the effect of general intellectual impairment was smaller than the specific association with executive function. This was only the case for psychosis in general, and not in an analysis limited to schizophrenia, where all cognitive domains were associated with impaired insight to a similar degree.ConclusionsNeuropsychological dysfunction, specifically impairment of set-shifting and error monitoring, contributes to poor insight in psychosis. Specific relations with different dimensions of insight and the putative role of metacognitive functions require further study.

scholarly journals Meta-analysis of cognitive function in Chinese first-episode schizophrenia: MATRICS Consensus Cognitive Battery (MCCB) profile of impairment

2019 ◽  
Vol 32 (3) ◽  
pp. e100043 ◽  
Author(s):  
Huijuan Zhang ◽  
Yao Wang ◽  
Yuliang Hu ◽  
Yikang Zhu ◽  
Tianhong Zhang ◽  
...  
Keyword(s):  
Cognitive Function ◽  
Effect Size ◽  
Meta Analysis ◽  
Verbal Learning ◽  
Chinese Patients ◽  
First Episode ◽  
Neurocognitive Deficits ◽  
Cognitive Domains ◽  
Significant Difference ◽  
First Episode Schizophrenia

BackgroundCompromised neurocognition is a core feature of schizophrenia. With increasing studies researching cognitive function of Chinese patients with first-episode schizophrenia (FES) using MATRICS Consensus Cognitive Battery (MCCB), it is not clear about the level and pattern of cognitive impairment among this population.AimTo provide a meta-analysis systematically analysing studies of neurocognitive function using MCCB in Chinese patients with FES.MethodsAn independent literature search of both Chinese and English databases up to 13 March 2019 was conducted by two reviewers. Standardised mean difference (SMD) was calculated using the random effects model to evaluate the effect size.Results56 studies (FES=3167, healthy controls (HC)=3017) were included and analysed. No study was rated as ‘high quality’ according to Strengthening the Reporting of Observational Studies in Epidemiology. Compared with HCs, Chinese patients with FES showed impairment with large effect size in overall cognition (SMD=−1.60, 95% CI −1.82 to −1.38, I2=67%) and all seven cognitive domains, with the SMD ranging from −0.87 to −1.41. In nine MCCB subtests, patients with FES showed significant difference in Symbol Coding (SMD=−1.90), Trail Making Test (TMT) (SMD=−1.36), Continuous Performance Test-Identical Pairs (SMD=−1.33), Hopkins Verbal Learning Test (SMD=−1.24), Brief Visuospatial Memory Test (SMD=−1.18), Mazes (SMD=−1.16), Category Fluency (SMD=−1.01), Spatial Span (SMD=−0.69) and Mayer-Salovey-Caruso Emotional Intelligence Test (SMD=−0.38).ConclusionsOur meta-analysis demonstrates that Chinese patients with FES show neurocognitive deficits across all seven MCCB cognitive domains and all nine subtests, particularly in two neurocognitive domains: speed of processing and attention/vigilance, with the least impairment shown in social cognition. Symbol Coding and TMT may be the most sensitive tests to detect cognitive deficit in Chinese patients with FES.

A meta-analysis of the risk for psychotic disorders among first- and second-generation immigrants

2010 ◽  
Vol 41 (5) ◽  
pp. 897-910 ◽  
Author(s):  
F. Bourque ◽  
E. van der Ven ◽  
A. Malla
Keyword(s):  
Generational Differences ◽  
Second Generation ◽  
Psychotic Disorders ◽  
Data Extraction ◽  
Meta Analysis ◽  
Significant Risk ◽  
Population Based ◽  
Second Generation Immigrants ◽  
Increased Risk ◽  
Migration Factors

BackgroundThere is increasing acceptance of migration as a risk factor for schizophrenia and related disorders; however, the magnitude of the risk among second-generation immigrants (SGIs) remains unclear. Generational differences in the incidence of psychotic disorders among migrants might improve our understanding of the relationship between migration, ethnicity and psychotic disorders. This meta-analysis aimed at determining the risk of psychotic disorders among SGIs in comparison with non-migrants and first-generation immigrants (FGIs).MethodMedline, EMBASE and PsycINFO databases were searched systematically for population-based studies on migration and psychotic disorders published between 1977 and 2008. We also contacted experts, tracked citations and screened bibliographies. All potential publications were screened by two independent reviewers in a threefold process. Studies were included in the meta-analysis if they reported incidence data, differentiated FGIs from SGIs and provided age-adjusted data. Data extraction and quality assessment were conducted for each study.ResultsTwenty-one studies met all inclusion criteria. A meta-analysis of 61 effect sizes for FGIs and 28 for SGIs yielded mean-weighted incidence rate ratios (IRRs) of 2.3 [95% confidence interval (CI) 2.0–2.7] for FGIs and 2.1 (95% CI 1.8–2.5) for SGIs. There was no significant risk difference between generations, but there were significant differences according to ethno-racial status and host country.ConclusionsThe increased risk of schizophrenia and related disorders among immigrants clearly persists into the second generation, suggesting that post-migration factors play a more important role than pre-migration factors or migration per se. The observed variability suggests that the risk is mediated by the social context.

scholarly journals The association between gestational diabetes and ASD and ADHD: a systematic review and meta-analysis

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jennifer Rowland ◽  
Claire A. Wilson
Keyword(s):  
Gestational Diabetes ◽  
Neurodevelopmental Disorders ◽  
Data Extraction ◽  
Meta Analysis ◽  
Maternal Diabetes ◽  
Autism Spectrum ◽  
Cochrane Library ◽  
Hyperactivity Disorder ◽  
Increased Risk ◽  
Specific Association

AbstractThere is growing evidence for a role of maternal diabetes in the pathogenesis of neurodevelopmental disorders. However, the specific association between gestational diabetes (GDM), as opposed to pre-gestational diabetes, has been poorly isolated. Thus the aim was to systematically review and meta-analyse literature pertaining to prevalence and risk for two neurodevelopmental disorders: autism spectrum disorder (ASD) and attention deficit hyperactivity disorder (ADHD), when exposed to GDM. PubMed, Cochrane Library, EMBASE, PsycINFO and CINAHL were systematically searched for eligible literature, with forward and backward citation tracking. Screening for eligibility, risk of bias assessment and data extraction were performed by two independent reviewers. 18 studies measuring ASD and 15 measuring ADHD met inclusion criteria. On meta-analysis there was an increased risk of ASD (OR 1.42; 95% CI 1.22, 1.65) but not ADHD (OR 1.01; 95% CI 0.79, 1.28). We discuss potential mechanisms for these differing risks. Greater understanding of risk factors, including GDM, for these neurodevelopmental disorders and potential mechanisms may help inform strategies aimed at prevention of exposure to these adversities during pregnancy.

scholarly journals Network meta-analysis on the comparative efficacy of family interventions for psychotic disorders: a protocol

BMJ Open ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. e039777
Author(s):  
Alina Laskowski ◽  
Tania M Lincoln
Keyword(s):  
Psychotic Disorders ◽  
Data Extraction ◽  
Meta Analysis ◽  
Psychosocial Interventions ◽  
Skills Training ◽  
Drop Out ◽  
Clinical State ◽  
Controlled Trials ◽  
Cochrane Central Register ◽  
Family Interventions

IntroductionFamily interventions are effective and are strongly recommended for psychotic disorders. However, there is a variety of intervention types, and their differential efficacy is widely unclear. The aim of the planned network meta-analysis (NMA) is to compare the efficacy of family interventions that differ in content (eg, psychoeducation, mutual support, skills training) and format (eg, number of sessions, inclusion of patients, form of delivery).Methods and analysisWe will include randomised controlled trials comparing psychosocial interventions directed at the adult relatives, friends or non-professional carers of people with a diagnosis of a psychotic disorder (schizophrenia spectrum) to any kind of control condition. The main outcomes will be global clinical state for the patients and coping with psychosis as well as attitudes towards psychosis for the relatives. Additional outcomes will be severity of symptoms, functioning, burden and compliance/drop-out. We conducted a comprehensive search of Cochrane Central Register of Controlled Trials, MEDLINE(R), PsycINFO, Cumulative Index to Nursing & Allied Health Literature (8 August 2019) and reference lists of review articles. Full-text assessment of eligibility, data extraction and risk-of-bias assessment will be done by two independent reviewers. An NMA will be conducted for any of the planned outcomes and intervention characteristics for which sufficient and appropriate data are available. The analyses will make use of a random effects model within a frequentist framework. Estimates for all pairwise treatment effects will be obtained using standardised mean differences for continuous outcomes and risk ratios for dichotomous outcomes. Interventions will be ranked according to their relative efficacy. We will address the assumption of transitivity, heterogeneity and inconsistency using theoretical and statistical approaches. The possibility of publication bias and the strength of evidence will also be examined.Ethics and disseminationThere are no ethical concerns. Results will be published in peer-reviewed journals and presented at practitioners’ conferences.PROSPERO registration numberCRD42020148728.

A Systematic Review and Meta-Analysis about the Effect of Bisphosphonates on the Risk of Skeletal-Related Event in Men with Prostate Cancer

2020 ◽  
Vol 20 (13) ◽  
pp. 1604-1612
Author(s):  
Congcong Wu ◽  
Hua Jiang ◽  
Jianghua Chen
Keyword(s):  
Prostate Cancer ◽  
Fixed Effects ◽  
Data Extraction ◽  
Controlled Trial ◽  
Meta Analysis ◽  
Control Group ◽  
Fixed Effects Model ◽  
Related Event ◽  
Mineral Density ◽  
Skeletal Related Event

Background: Although the adjuvant therapy of bisphosphonates in prostate cancer is effective in improving bone mineral density, it is still uncertain whether bisphosphonates could decrease the risk of Skeletal- Related Event (SRE) in patients with prostate cancer. We reviewed and analyzed the effect of different types of bisphosphonates on the risk of SRE, defined as pathological fracture, spinal cord compression, radiation therapy to the bone, surgery to bone, hypercalcemia, bone pain, or death as a result of prostate cancer. Methods: A systemic literature search was conducted on PubMed and related bibliographies. The emphasis during data extraction was laid on the Hazard Ratio (HR) and the corresponding 95% Confidence Interval (CI) from every eligible Randomized Controlled Trial (RCT). HR was pooled with the fixed effects model, and preplanned subgroup analyses were performed. Results: 5 RCTs (n = 4651) were included and analyzed finally after screening 51 articles. The meta-analysis of all participants showed no significant decrease in the risk of SRE when adding bisphosphonates to control group (HR = 0.968, 95% CI = 0.874 - 1.072, p = 0.536) with low heterogeneity (I2 = 0.0% (d.f. = 4) p = 0.679). There was no significant improvement on SRE neither in the subgroups with Metastases (M1) or Castration-Sensitive Prostate Cancer (CSPC) (respectively HR = 0.968, 95% CI = 0.874 - 1.072, p = 0.536, I2 = 0.0% (d.f. = 4) p = 0.679; HR = 0.954, 95% CI = 0.837 - 1.088, p = 0.484, I2 = 0.0% (d.f. = 3) p = 0.534). Conclusion: Our study demonstrated that bisphosphonates could not statistically significantly reduce the risk of SRE in patients with prostate cancer, neither in the subgroups with M1 or CSPC.

scholarly journals Misuse of medication in adult substance misuse services: a systematic review protocol

BMJ Open ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. e047283
Author(s):  
Rosalind Gittins ◽  
Louise Missen ◽  
Ian Maidment
Keyword(s):  
Systematic Review ◽  
Substance Misuse ◽  
Data Extraction ◽  
Meta Analysis ◽  
Grey Literature ◽  
Opioid Analgesics ◽  
Physical And Mental Health ◽  
Qualitative Synthesis ◽  
Treatment Services ◽  
The Impact

IntroductionThere is a growing concern about the misuse of over the counter (OTC) and prescription only medication (POM) because of the impact on physical and mental health, drug interactions, overdoses and drug-related deaths. These medicines include opioid analgesics, anxiolytics such as pregabalin and diazepam and antidepressants. This protocol outlines how a systematic review will be undertaken (during June 2021), which aims to examine the literature on the pattern of OTC and POM misuse among adults who are accessing substance misuse treatment services. It will include the types of medication being taken, prevalence and demographic characteristics of people who access treatment services.Methods and analysisAn electronic search will be conducted on the Cochrane, OVID Medline, Pubmed, Scopus and Web of Science databases as well as grey literature. Two independent reviewers will conduct the initial title and abstract screenings, using predetermined criteria for inclusion and exclusion. If selected for inclusion, full-text data extraction will be conducted using a pilot-tested data extraction form. A third reviewer will resolve disagreements if consensus cannot be reached. Quality and risk of bias assessment will be conducted for all included studies. A qualitative synthesis and summary of the data will be provided. If possible, a meta-analysis with heterogeneity calculation will be conducted; otherwise, Synthesis Without Meta-analysis will be undertaken for quantitative data. The reporting of this protocol follows the Preferred Reporting Items for Systematic Reviews and Meta-Analyses.Ethics and disseminationEthical approval is not required. Findings will be peer reviewed, published and shared verbally, electronically and in print, with interested clinicians and policymakers.PROSPERO registration numberCRD42020135216.

scholarly journals A246 THE GLOBAL INCIDENCE OF ACUTE PANCREATITIS IS INCREASING OVER TIME: A SYSTEMATIC REVIEW AND META-ANALYSIS

2021 ◽  
Vol 4 (Supplement_1) ◽  
pp. 304-306
Author(s):  
J Iannuzzi ◽  
J H Leong ◽  
J Quan ◽  
J A King ◽  
J W Windsor ◽  
...  
Keyword(s):  
Acute Pancreatitis ◽  
Data Extraction ◽  
Meta Analysis ◽  
Temporal Trends ◽  
Western World ◽  
Common Disease ◽  
Biliary Disease ◽  
Comprehensive Overview ◽  
Annual Percent Change ◽  
Over Time

Abstract Background Acute pancreatitis is a common disease with significant associated morbidity and mortality. Historically, acute pancreatitis has been considered a disease with multiple etiologies and risk factors but is driven by alcohol and biliary disease. Multiple studies have shown that the incidence of acute pancreatitis is increasing globally among both adults and children. Aims The purpose of this study was to assess temporal trends in incidence of acute pancreatitis globally. Methods We performed a systematic literature search to identify population-based studies reporting the annual incidence of acute pancreatitis. Abstracts were independently assessed in duplicate to identify applicable papers for full-text review and data extraction. Joinpoint temporal trend analyses were performed to calculate the average annual percent change (AAPC) with 95% confidence intervals (CI). The AAPCs were pooled in a meta-analysis to capture the overall and regional trends in acute pancreatitis incidence over time. Temporal data were summarized in a static map and an interactive, web-based map to illustrate global differences. Results Forty-five studies reported the temporal incidence of acute pancreatitis (static map provided, online interactive map: https://kaplan-acute-pancreatitis-ucalgary.hub.arcgis.com/). The incidence of acute pancreatitis has increased from 1961 to 2016 (AAPC = 2.89%; 95% CI: 2.26, 3.52; n=41). Increasing incidence was observed in North America (AAPC = 2.71%; 95% CI: 1.93, 3.50; n=10) and Europe (AAPC = 2.79%; 95% CI: 1.95, 3.63; n=24). The incidence of acute pancreatitis was stable in Asia (AAPC = −0.28%; 95% CI: −5.03, 4.47; n=2). Conclusions This meta-analysis provides a comprehensive overview of the global incidence of acute pancreatitis over the last five decades and demonstrates a steadily rising incidence over time in most countries of the Western world. More studies are needed to better define the changing incidence of acute pancreatitis in Asia, Africa and Latin America. Funding Agencies None

scholarly journals Prevalence of retinopathy in prediabetes: protocol for a systematic review and meta-analysis

BMJ Open ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. e040997
Author(s):  
Varo Kirthi ◽  
Paul Nderitu ◽  
Uazman Alam ◽  
Jennifer Evans ◽  
Sarah Nevitt ◽  
...  
Keyword(s):  
Systematic Review ◽  
Diabetic Retinopathy ◽  
Data Extraction ◽  
Meta Analysis ◽  
International Diabetes Federation ◽  
Current Data ◽  
Risk Of Bias ◽  
Fundus Photography ◽  
Primary Data ◽  
Cochrane Library

IntroductionThere is growing evidence of a higher than expected prevalence of retinopathy in prediabetes. This paper presents the protocol of a systematic review and meta-analysis of retinopathy in prediabetes. The aim of the review is to estimate the prevalence of retinopathy in prediabetes and to summarise the current data.Methods and analysisThis protocol is developed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Protocols (PRISMA-P) guidelines. A comprehensive electronic bibliographic search will be conducted in MEDLINE, EMBASE, Web of Science, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Google Scholar and the Cochrane Library. Eligible studies will report prevalence data for retinopathy on fundus photography in adults with prediabetes. No time restrictions will be placed on the date of publication. Screening for eligible studies and data extraction will be conducted by two reviewers independently, using predefined inclusion criteria and prepiloted data extraction forms. Disagreements between the reviewers will be resolved by discussion, and if required, a third (senior) reviewer will arbitrate.The primary outcome is the prevalence of any standard features of diabetic retinopathy (DR) on fundus photography, as per International Clinical Diabetic Retinopathy Severity Scale (ICDRSS) classification. Secondary outcomes are the prevalence of (1) any retinal microvascular abnormalities on fundus photography that are not standard features of DR as per ICDRSS classification and (2) any macular microvascular abnormalities on fundus photography, including but not limited to the presence of macular exudates, microaneurysms and haemorrhages. Risk of bias for included studies will be assessed using a validated risk of bias tool for prevalence studies. Pooled estimates for the prespecified outcomes of interest will be calculated using random effects meta-analytic techniques. Heterogeneity will be assessed using the I2 statistic.Ethics and disseminationEthical approval is not required as this is a protocol for a systematic review and no primary data are to be collected. Findings will be disseminated through peer-reviewed publications and presentations at national and international meetings including Diabetes UK, European Association for the Study of Diabetes, American Diabetes Association and International Diabetes Federation conferences.PROSPERO registration numberCRD42020184820.

scholarly journals Effectiveness of Antalgic Therapies in Patients with Vertebral Bone Metastasis: A Protocol for a Systematic Review and Meta-Analysis

2021 ◽  
Vol 18 (8) ◽  
pp. 3991
Author(s):  
Antonio Jose Martin-Perez ◽  
María Fernández-González ◽  
Paula Postigo-Martin ◽  
Marc Sampedro Pilegaard ◽  
Carolina Fernández-Lao ◽  
...  
Keyword(s):  
Systematic Review ◽  
Bone Metastasis ◽  
Data Extraction ◽  
Meta Analysis ◽  
Risk Of Bias ◽  
Cochrane Library ◽  
Pharmacological Intervention ◽  
Vertebral Metastasis ◽  
Randomized Controlled Clinical Trials

There is no systematic review that has identified existing studies evaluating the pharmacological and non-pharmacological intervention for pain management in patients with bone metastasis. To fill this gap in the literature, this systematic review with meta-analysis aims to evaluate the effectiveness of different antalgic therapies (pharmacological and non-pharmacological) in the improvement of pain of these patients. To this end, this protocol has been written according to the Preferred Reporting Items for Systematic review and Meta-Analysis Protocols (PRISMA-P) and registered in PROSPERO (CRD42020135762). A systematic search will be carried out in four international databases: Medline (Via PubMed), Web of Science, Cochrane Library and SCOPUS, to select the randomized controlled clinical trials. The Risk of Bias Tool developed by Cochrane will be used to assess the risk of bias and the quality of the identified studies. A narrative synthesis will be used to describe and compare the studies, and after the data extraction, random effects model and a subgroup analyses will be performed according to the type of intervention, if possible. This protocol aims to generate a systematic review that compiles and synthesizes the best and most recent evidence on the treatment of pain derived from vertebral metastasis.

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