Factors associated with virtual reality sickness in head-mounted displays: a systematic review and meta-analysis

The use of head-mounted displays (HMD) for virtual reality (VR) application-based purposes including therapy, rehabilitation, and training is increasing. Despite advancements in VR technologies, many users still experience sickness symptoms. VR sickness may be influenced by technological differences within HMDs such as resolution and refresh rate, however VR content also plays a significant role. The primary objective of this systematic review and meta-analysis was to examine the literature on HMD’s that report Simulator Sickness Questionnaire (SSQ) scores to determine the impact of content. User factors associated with VR sickness were also examined. A systematic search was conducted according to PRISMA guidelines. Fifty-five articles met inclusion criteria, representing 3,016 participants (mean age range 19.5-80; 41% female). Findings show gaming content recorded the highest total SSQ mean 34.26 (95%CI 29.57-38.95). VR sickness profiles were also influenced by visual stimulation, locomotion and exposure times. Older samples (mean age ≥35 years) scored significantly lower total SSQ means than younger samples, however these findings are based on a small evidence base as a limited number of studies included older users. No sex differences were found. Across all types of content, the pooled total SSQ mean was relatively high 28.00 (95%CI 24.66-31.35) compared with recommended SSQ cut-off scores. These findings are of relevance for informing future research and the application of VR in different contexts.

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Cybersickness in current-generation virtual reality head-mounted displays: systematic review and outlook

Virtual Reality ◽

10.1007/s10055-021-00513-6 ◽

2021 ◽

Author(s):

Polona Caserman ◽

Augusto Garcia-Agundez ◽

Alvar Gámez Zerban ◽

Stefan Göbel

Keyword(s):

Systematic Review ◽

Virtual Reality ◽

Meta Analysis ◽

Subjective Evaluation ◽

Future Research ◽

Current Generation ◽

Research Areas ◽

Head Mounted Displays ◽

Skin Response ◽

Golden Standard

AbstractCybersickness (CS) is a term used to refer to symptoms, such as nausea, headache, and dizziness that users experience during or after virtual reality immersion. Initially discovered in flight simulators, commercial virtual reality (VR) head-mounted displays (HMD) of the current generation also seem to cause CS, albeit in a different manner and severity. The goal of this work is to summarize recent literature on CS with modern HMDs, to determine the specificities and profile of immersive VR-caused CS, and to provide an outlook for future research areas. A systematic review was performed on the databases IEEE Xplore, PubMed, ACM, and Scopus from 2013 to 2019 and 49 publications were selected. A summarized text states how different VR HMDs impact CS, how the nature of movement in VR HMDs contributes to CS, and how we can use biosensors to detect CS. The results of the meta-analysis show that although current-generation VR HMDs cause significantly less CS ($$p<0.001$$ p < 0.001 ), some symptoms remain as intense. Further results show that the nature of movement and, in particular, sensory mismatch as well as perceived motion have been the leading cause of CS. We suggest an outlook on future research, including the use of galvanic skin response to evaluate CS in combination with the golden standard (Simulator Sickness Questionnaire, SSQ) as well as an update on the subjective evaluation scores of the SSQ.

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Factors Associated With Virtual Reality Sickness in Head-Mounted Displays: A Systematic Review and Meta-Analysis

Frontiers in Human Neuroscience ◽

10.3389/fnhum.2020.00096 ◽

2020 ◽

Vol 14 ◽

Cited By ~ 21

Author(s):

Dimitrios Saredakis ◽

Ancret Szpak ◽

Brandon Birckhead ◽

Hannah A. D. Keage ◽

Albert Rizzo ◽

...

Keyword(s):

Systematic Review ◽

Virtual Reality ◽

Meta Analysis ◽

Factors Associated ◽

Head Mounted Displays

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Impact of cardiovascular disease and cardiac injury on in-hospital mortality in patients with COVID-19: a systematic review and meta-analysis

Heart ◽

10.1136/heartjnl-2020-317062 ◽

2020 ◽

Vol 106 (15) ◽

pp. 1142-1147 ◽

Cited By ~ 25

Author(s):

Xintao Li ◽

Bo Guan ◽

Tong Su ◽

Wei Liu ◽

Mengyao Chen ◽

...

Keyword(s):

Systematic Review ◽

Cardiovascular Disease ◽

Hospital Mortality ◽

Mortality Risk ◽

Meta Analysis ◽

Cardiac Injury ◽

Sensitivity Analyses ◽

Future Research ◽

Cardiovascular Comorbidities ◽

The Impact

BackgroundCoronavirus disease 2019 (COVID-19) has produced a significant health burden worldwide, especially in patients with cardiovascular comorbidities. The aim of this systematic review and meta-analysis was to assess the impact of underlying cardiovascular comorbidities and acute cardiac injury on in-hospital mortality risk.MethodsPubMed, Embase and Web of Science were searched for publications that reported the relationship of underlying cardiovascular disease (CVD), hypertension and myocardial injury with in-hospital fatal outcomes in patients with COVID-19. The ORs were extracted and pooled. Subgroup and sensitivity analyses were performed to explore the potential sources of heterogeneity.ResultsA total of 10 studies were enrolled in this meta-analysis, including eight studies for CVD, seven for hypertension and eight for acute cardiac injury. The presence of CVD and hypertension was associated with higher odds of in-hospital mortality (unadjusted OR 4.85, 95% CI 3.07 to 7.70; I2=29%; unadjusted OR 3.67, 95% CI 2.31 to 5.83; I2=57%, respectively). Acute cardiac injury was also associated with a higher unadjusted odds of 21.15 (95% CI 10.19 to 43.94; I2=71%).ConclusionCOVID-19 patients with underlying cardiovascular comorbidities, including CVD and hypertension, may face a greater risk of fatal outcomes. Acute cardiac injury may act as a marker of mortality risk. Given the unadjusted results of our meta-analysis, future research are warranted.

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Considering the methodological limitations in the evidence base of antidepressants for depression: a reanalysis of a network meta-analysis

BMJ Open ◽

10.1136/bmjopen-2018-024886 ◽

2019 ◽

Vol 9 (6) ◽

pp. e024886 ◽

Cited By ~ 24

Author(s):

Klaus Munkholm ◽

Asger Sand Paludan-Müller ◽

Kim Boesen

Keyword(s):

Systematic Review ◽

Clinical Study ◽

Effect Size ◽

Meta Analysis ◽

Evidence Base ◽

Risk Of Bias ◽

Depression Symptom ◽

Meta Analyses ◽

The Impact ◽

Clinical Study Reports

ObjectivesTo investigate whether the conclusion of a recent systematic review and network meta-analysis (Ciprianiet al) that antidepressants are more efficacious than placebo for adult depression was supported by the evidence.DesignReanalysis of a systematic review, with meta-analyses.Data sources522 trials (116 477 participants) as reported in the systematic review by Ciprianiet aland clinical study reports for 19 of these trials.AnalysisWe used the Cochrane Handbook’s risk of bias tool and the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach to evaluate the risk of bias and the certainty of evidence, respectively. The impact of several study characteristics and publication status was estimated using pairwise subgroup meta-analyses.ResultsSeveral methodological limitations in the evidence base of antidepressants were either unrecognised or underestimated in the systematic review by Ciprianiet al. The effect size for antidepressants versus placebo on investigator-rated depression symptom scales was higher in trials with a ‘placebo run-in’ study design compared with trials without a placebo run-in design (p=0.05). The effect size of antidepressants was higher in published trials compared with unpublished trials (p<0.0001). The outcome data reported by Ciprianiet aldiffered from the clinical study reports in 12 (63%) of 19 trials. The certainty of the evidence for the placebo-controlled comparisons should be very low according to GRADE due to a high risk of bias, indirectness of the evidence and publication bias. The mean difference between antidepressants and placebo on the 17-item Hamilton depression rating scale (range 0–52 points) was 1.97 points (95% CI 1.74 to 2.21).ConclusionsThe evidence does not support definitive conclusions regarding the benefits of antidepressants for depression in adults. It is unclear whether antidepressants are more efficacious than placebo.

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Prevalence and associated factors of active smoking among individuals living with hypertension and/or diabetes in Africa: a systematic review and meta-analysis protocol

BMJ Open ◽

10.1136/bmjopen-2016-015444 ◽

2017 ◽

Vol 7 (10) ◽

pp. e015444 ◽

Cited By ~ 3

Author(s):

Guy S Wafeu ◽

Aurel T Tankeu ◽

Francky Teddy A Endomba ◽

Jobert Richie Nansseu ◽

Arnaud D Kaze ◽

...

Keyword(s):

Systematic Review ◽

Meta Analysis ◽

Geographic Region ◽

Future Research ◽

P Value ◽

Published Data ◽

Final Report ◽

Active Smoking ◽

Analysis Model ◽

Factors Associated

IntroductionTobacco use significantly increases cardiovascular complications in people living with hypertension and/or diabetes. We aim to summarise data on the prevalence and factors associated with active smoking in these conditions in Africa.Method and analysisWe will search PubMed, Embase, Google Scholar and African Journals Online for relevant abstracts of studies on active smoking in individuals living with diabetes and/or hypertension published from 1 January 2000 to 31 December 2016, with no language restriction. Additionally, relevant unpublished papers and conference proceedings will be checked, as well as references of included articles. Two investigators will independently screen, select studies, extract data and assess the risk of bias in each study. Data will be analysed using Stata software (Stata V.14, Texas, USA). The study-specific estimates will be pooled through a random-effects meta-analysis model to obtain an overall summary estimate of the prevalence of smoking across studies. Also, we will assess factors associated to smoking. Heterogeneity of studies will be evaluated by the χ2 test on Cochrane’s Q statistic. Funnel plots analysis and Egger’s test will be done to detect publication bias. Results will be presented by geographic region (central, eastern, northern, southern and western Africa). A p value less than 0.05 will be considered significant for factors associated to smoking.Ethics and disseminationThis study is based on published data, and therefore ethical approval is not a requirement. This systematic review and meta-analysis is expected to serve as a basis for designing cost-effective interventions to reduce and prevent smoking in patients with diabetes and/or hypertension, and as a guide for future research based on the remaining gaps. The final report of this study in the form of a scientific paper will be published in peer-reviewed journals. Findings will further be presented at conferences and submitted to relevant health authorities.

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The Impact of Childhood Psychological Maltreatment on Mental Health Outcomes in Adulthood: A Protocol for a Systematic Review and Meta-Analysis

10.21203/rs.3.rs-102460/v1 ◽

2020 ◽

Author(s):

Zhuoni Xiao ◽

Mina Murat Baldwin ◽

Franziska Meinck ◽

Ingrid Obsuth ◽

Aja Louise Murray

Keyword(s):

Mental Health ◽

Systematic Review ◽

Emotional Abuse ◽

Meta Analysis ◽

Psychological Maltreatment ◽

Future Research ◽

Long Term Effects ◽

Post Traumatic Stress ◽

Eligibility Criteria ◽

The Impact

Abstract Background: Research suggests that childhood psychological maltreatment (i.e., emotional abuse and emotional neglect) is associated with mental and physical health problems that persist into adulthood, for example anxiety, depression, post-traumatic stress disorder (PTSD), suicidal ideation, and aggression; however, a systematic review and meta-analysis of the existing literature would help clarify the magnitude and moderators of these associations, and the extent to which they may be affected by publication bias, as well as the methodological strengths and weakness of studies in this area.Method: Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guideline will be employed to structure the review. Several searches will be carried out via databases including Web of Science, Medline, PubMed, PsycINFO, Applied Social Science Index and Abstract, ERIC and EMBASE. Empirical peer reviewed research articles that fit pre-specified eligibility criteria will be included in the review. This review will include literature written in either English or Chinese. Two independent reviewers will screen and assess studies for inclusion in the review as well as extract the data, with consensus reached through discussion in cases of discrepancy. A third reviewer will be consulted to resolve any discrepancies that cannot be resolved through discussion between the original reviewers. The relevant Newcastle-Ottawa scales will be used for assessing the quality of studies. If a sufficient number of comparable studies are retrieved, a meta-analysis will be conducted using a random effects model. Discussion: This systematic review will provide an understanding of the long-term effects of childhood psychological maltreatment on adult mental health, which adds to previous reviews focusing primarily on the effects of physical and sexual abuse. The results of the review will help inform clinical practice in approaches to treating those with a history of psychological maltreatment in childhood. The gaps and weaknesses in the evidence identified will also inform recommendations for future research.

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Remote home monitoring (virtual wards) during the COVID-19 pandemic: a living systematic review

10.1101/2020.10.07.20208587 ◽

2020 ◽

Cited By ~ 1

Author(s):

Cecilia Vindrola-Padros ◽

Kelly E Singh ◽

Manbinder S Sidhu ◽

Theo Georghiou ◽

Chris Sherlaw-Johnson ◽

...

Keyword(s):

Systematic Review ◽

Patient Safety ◽

Outcome Measures ◽

Secondary Care ◽

Meta Analysis ◽

Eligible Patient ◽

Home Monitoring ◽

Healthcare Sector ◽

Future Research ◽

The Impact

ABSTRACTObjectivesThe aim of this review was to analyse the implementation and impact of remote home monitoring models (virtual wards) during COVID-19, identifying their main components, processes of implementation, target patient populations, impact on outcomes, costs and lessons learnt. The review will be kept ‘live’ through regular updates.DesignThe review was designed as a living systematic review to capture a rapidly evolving evidence base. We used the Preferred Reporting Items for Systematic Reviews and Meta- Analysis (PRISMA) statement.SettingThe review included remote home monitoring models led by primary and secondary care across seven countries.Participants17 examples of remote home monitoring models were included in the review.Main outcome measuresImpact of remote home monitoring on virtual length of stay, escalation, Emergency department attendance/reattendance, admission/readmission and mortality.ResultsThe primary aim of the remote home monitoring models was the early identification of deterioration for patients self-managing COVID-19 symptoms at home. Most models were led by secondary care. Broad criteria for the eligible patient population were used and confirmation of COVID-19 was not required (in most cases). Monitoring was carried via online platforms, paper-based systems with telephone calls or (less frequently) through wearable sensors. We could not reach conclusions regarding patient safety and the identification of early deterioration due to lack of standardised reporting across articles and missing data. None of the articles reported any form of economic analysis, beyond how the resources were used.ConclusionsThe review pointed to variability in the implementation of the models, in relation to healthcare sector, monitoring approach and selected outcome measures. Lack of standardisation on reporting prevented conclusions on the impact of remote home monitoring on patient safety or early escalation during COVID-19. Future research should focus on staff and patient experiences of care and potential inequalities in patients’ access to these models. Attention needs to be paid to the processes used to implement these models, the evaluation of their impact on patient outcomes through the use of comparators, the use of risk-stratification tools, and cost-effectiveness of the models and their sustainability.Protocol registrationThe review protocol was published on PROSPERO (CRD: 42020202888).

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Insecticide Exposure and Risk of Asthmatic Symptoms: A Systematic Review and Meta-Analysis

Toxics ◽

10.3390/toxics9090228 ◽

2021 ◽

Vol 9 (9) ◽

pp. 228

Author(s):

Jiraporn Chittrakul ◽

Ratana Sapbamrer ◽

Wachiranun Sirikul

Keyword(s):

Systematic Review ◽

Respiratory System ◽

Meta Analysis ◽

Relevant Literature ◽

Cross Sectional ◽

Medical Opinion ◽

Factors Associated ◽

Insecticide Exposure ◽

Increased Risk ◽

The Impact

The incidence of respiratory disease is increasing. In relation to this, in addition to infection, factors associated with working with chemical insecticides are a cause for concern. Some of the chemicals involved have been shown to affect the respiratory system, and consequentially workers are at increased risk of conditions such as asthma. However, medical opinion around this area is still controversial; therefore, the objective of this study is to investigate the association between exposure to insecticides and asthma by means of a systematic review of the relevant literature. Relevant literature was identified, and a systematic review was conducted to investigate the association between exposure to insecticides and asthma. A total of five studies (three cross sectional and two cohort) including 45,435 subjects were identified as relevant. The summary odds ratios related to the impact of exposure to specific insecticides on asthma were organophosphates 1.31 (95%CI = 1.17–1.48, I2 = 27%, p = 0.172), carbamates 1.44 (95%CI 1.08–1.92, I2 = 56.7%, p = 0.031) and organochlorines 1.31 (95%CI 1.19–1.64, I2 = 37.3%, p = 0.131). Farmers exposed to certain insecticides may have an increased risk of asthma and asthmatic symptoms, but further research on that issue is urgently needed.

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A systematic review exploring the bidirectional relationship between puberty and autoimmune rheumatic diseases

10.21203/rs.3.rs-45432/v1 ◽

2020 ◽

Author(s):

Nina M de Gruijter ◽

Meena Naja ◽

Hannah Peckham ◽

Anna Radziszewska ◽

Matthew Kinsella ◽

...

Keyword(s):

Systematic Review ◽

Rheumatic Diseases ◽

Lupus Erythematosus ◽

Meta Analysis ◽

Severe Disease ◽

Delayed Puberty ◽

Future Research ◽

Autoimmune Rheumatic Diseases ◽

Bidirectional Relationship ◽

The Impact

Abstract Background: Autoimmune rheumatic diseases (ARDs) are associated with a significant sex-bias which becomes more evident post-puberty. This systematic review aims to elucidate the bidirectional relationship between puberty and ARDs related outcomes.Methods: Studies published in English until October 2019 were identified using a systematic search of endocrinology and rheumatology literature. Information was extracted on study design, sample size, demographics, puberty outcome measures, and main findings. The methodological quality of the studies included was analysed using the Newcastle-Ottawa Scale (NOS).Results: 14 non-randomised studies reporting on the impact of puberty on ARD outcomes (n = 7), ARD impact on puberty-related outcomes (n = 6), or both (n = 1) have been identified. The impact of puberty on ARD outcomes have been investigated in patients with juvenile idiopathic arthritis (JIA)-associated uveitis (n = 1), juvenile systemic lupus erythematosus (JSLE) (n = 5) or in healthy controls who developed adult-onset SLE (n = 1) or had non-specific symptoms (n = 1). The impact of ARD on puberty outcomes was explored in JIA (n = 4) and JSLE (n = 3). Quality assessment of studies showed a small to moderate risk of bias overall (NOS 4–9/9). Due to large heterogeneity of the studies it was not possible to perform a meta-analysis. Multiple studies reported on delayed puberty in patients with JIA/JSLE, menstrual and hormonal abnormalities, and lower height and weight than controls. Earlier (pre-pubertal) onset of JSLE was correlated with more severe disease and more need for systemic treatment.Conclusion: A bidirectional relationship exists between puberty and ARDs; however, more and better research is required to elucidate the complexity of this relationship. We propose puberty-related clinical assessments in patients with ARDs, which can improve patient outcomes and facilitate future research.

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The impact of eHealth group interventions on the mental, behavioural, and physical health of adults: A systematic review protocol

10.21203/rs.3.rs-37015/v2 ◽

2020 ◽

Cited By ~ 1

Author(s):

Cheryl L Currie ◽

Richard Larouche ◽

M. L. Voss ◽

Erin K. Higa ◽

Rae Spiwak ◽

...

Keyword(s):

Mental Health ◽

Systematic Review ◽

Physical Health ◽

Meta Analysis ◽

Primary Objective ◽

Risk Of Bias ◽

Community Dwelling ◽

Controlled Trials ◽

Sex And Gender ◽

The Impact

Abstract Background: COVID-19 has resulted in an increased demand for mental health services globally. There is emerging evidence for the efficacy for group eHealth interventions that support population-based mental health and wellbeing, but a systematic review is lacking. The primary objective of this systematic review is to summarize the evidence for eHealth group counselling and coaching programs for adults. A second objective is to assess, within studies selected for our primary objective, the impact of programs that encourage PA on outcomes compared to those that do not.Methods and Design: Randomized controlled trials that assess the impact of eHealth group counselling or coaching programs on mental health, health behaviour, or physical health conditions or concerns among community dwelling adults will be searched in MEDLINE, PsycInfo, CINHAL, and the Central Register of Controlled Trials. The review will be structured using PRISMA guidelines. Studies will be synthesized using the Cochrane Handbook and Synthesis Without Meta-Analysis (SWiM) reporting guideline. Quality will be evaluated using GRADE. Risk of bias will be assessed using the Cochrane Risk of Bias tool with higher quality studies prioritized when drawing conclusions. The role of sex and gender will be considered as well as possible gender biases at all stages of the review.Discussion: This review will examine the effectiveness of eHealth counselling and coaching programs delivered to adults in a group format. Findings will inform the decisions of governments, communities, and health care organizations responding to the COVID-19 pandemic in Canada. Systematic review registration: The protocol has been registered at the International Prospective Register of Systematic Reviews (PROSPERO: CRD42020187551).

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