scholarly journals The global prevalence of familial multiple sclerosis: an updated systematic review and meta-analysis

BMC Neurology ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Naeim Ehtesham ◽  
Maryam Zare Rafie ◽  
Meysam Mosallaei
Keyword(s):  
Multiple Sclerosis ◽  
Web Of Science ◽  
Meta Analysis ◽  
Disease Onset ◽  
Random Effects Model ◽  
Inclusion Criteria ◽  
Isi Web Of Science ◽  
Pooled Prevalence ◽  
Significant Difference ◽  
Meta Regression

Abstract Background Considering that many recent studies have reported the prevalence of familial multiple sclerosis (FMS), we performed an updated meta-analysis of the worldwide prevalence of FMS by the addition of recent publications. Methods A search in PubMed, Scopus, the ISI Web of Science, and Google Scholar was undertaken up to 20 December 2020. The inclusion criteria were based on the CoCoPop approach (condition, context, and population). Meta-analysis of the qualified studies was conducted by comprehensive meta-analysis ver. 2 software. Results The pooled prevalence of MS in relatives of 16,179 FMS cases was estimated to be 11.8% (95% CI: 10.7–13) based on a random-effects model. The pooled mean age of disease onset in adult probands was calculated to be 28.7 years (95% CI: 27.2 ± 30.2). Regarding 13 studies that reported the data of FMS in pediatrics (n = 877) and adults (n = 6636), the FMS prevalence in pediatrics and adults was 15.5% (95% CI: 13.8–17.4) and 10.8% (95% CI: 8.1–14.2), respectively. The prevalence of FMS in affected males (n = 5243) and females (n = 11,503) was calculated to be 13.7% (95% CI: 10.1–18.2) and 15.4% (95% CI: 10.3–22.4), respectively. The odds ratio of male/female in FMS cases was not statistically significant (OR = 0.9; 95% CI: 0.6–1.2, P = 0.55). Subgroup analysis demonstrated a significant difference in the prevalence of FMS between the geographical areas (P = 0.007). The meta-regression model indicated that the prevalence of FMS is lower with higher latitude and higher MS prevalence (P < 0.001). In contrast, meta-regression based on prevalence day was not statistically significant (P = 0.29). Conclusions The prevalence of FMS is higher in the pediatric group than that of adults, distinct between geographical areas, and diminishes with the increment of MS prevalence and latitude. Also, the symptoms initiate relatively at younger ages in the FMS cases. Interestingly, our analysis unveiled that FMS is not more prevalent in men than women and the risk of MS development in relatives is not higher when the affected proband is male.

The global prevalence of familial multiple sclerosis: an updated systematic review and meta-analysis

2021 ◽  
Author(s):  
Naeim Ehtesham ◽  
Maryam Zare Rafie ◽  
Meysam Mosallaei
Keyword(s):  
Multiple Sclerosis ◽  
Web Of Science ◽  
Meta Analysis ◽  
Disease Onset ◽  
Inclusion Criteria ◽  
Multifactorial Diseases ◽  
Pooled Prevalence ◽  
Significant Difference ◽  
Meta Regression ◽  
Genetic And Environmental Factors

Abstract Background: Considering that familial multiple sclerosis (FMS) can reveal the extent to which genetic and environmental factors each involve in the etiopathogenesis of the disease, we performed an updated meta-analysis of the worldwide prevalence of FMS by addition of recent publications. Methods: A search in PubMed, Scopus, the ISI Web of Science, and Google Scholar up to 20 December 2020 was done. The inclusion criteria were based on the CoCoPop approach (condition, context, and population). The qualified studies entered the process of the meta-analysis by using comprehensive meta-analysis ver. 2 software.Results: The pooled prevalence of MS in relatives of 16179 FMS cases was estimated to be 11.8% (95% CI: 10.7-13) based on a random-effects model. The pooled mean age of disease onset in adult probands was calculated to be 28.7 years (95% CI: 27.2± 30.2). In 13 studies that reported the data of FMS in pediatrics (n=6636) and adults (n=877), the FMS prevalence was 10.8% (95% CI: 8.1-14.2) and 15.5% (95% CI: 13.8-17.4), respectively. Considering the data of 9 studies, the prevalence of FMS in males (n=5243) and females (n=11503) patients was calculated to be 13.7% (95% CI: 10.1-18.2) and 15.4% (95% CI: 10.3-22.4), respectively. The odds ratio of male/female in FMS cases was not statistically significant (OR= 0.9; 95% CI: 0.6-1.2, P=0.55). Subgroup analysis demonstrated a significant difference in the prevalence of FMS between the geographical areas (P= 0.007). The meta-regression model for FMS prevalence was significantly lower in terms of higher latitude (P< 0.001) and increased MS prevalence (P< 0.001). In contrast, meta-regression based on prevalence day was not statistically significant (P=0.29).Conclusions: The prevalence of FMS is more in the pediatric group than that of adults, is distinct between geographical areas, and diminishes with the increment of MS prevalence and latitude. Also, the symptoms initiate relatively at lower ages in FMS cases. By contrast with multifactorial diseases, our analysis unveiled that the prevalence of FMS was not more prevalent in men than women and the risk of MS development in relatives was not more when the affected proband was male.

scholarly journals Prevalence of sexual dysfunction in men with multiple sclerosis: a systematic review and meta-analysis

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Maryam Dastoorpoor ◽  
Maryam Zamanian ◽  
Rahmatollah Moradzadeh ◽  
Seyed Massood Nabavi ◽  
Raana Kousari
Keyword(s):  
Multiple Sclerosis ◽  
Sexual Dysfunction ◽  
Web Of Science ◽  
Meta Analysis ◽  
Random Effects Model ◽  
Keywords Multiple Sclerosis ◽  
Inverse Variance ◽  
Pooled Prevalence ◽  
Different Types ◽  
High Range

Abstract Background Symptoms in multiple sclerosis (MS) can lead to different types and ranges of sexual dysfunction in MS patients. Studies in different parts of the world have reported a high range of sexual dysfunction in men with MS. This study aimed to estimate pooled prevalence of sexual dysfunction in men with MS. Methods The authors searched Web of Science, PubMed, Scopus, Embase, Magiran, SID, and Iran Medical Papers Database using the keywords “multiple sclerosis”, “sexual dysfunctions”, “men”, “prevalence”, and their synonyms systematically. Meta-analysis was performed using the random effects model with inverse variance-weighted method to estimate the overall prevalence of sexual dysfunction in men with MS. The protocol for this meta-analysis is available in PROSPERO (ID CRD42020199005). Results A total of 351 documents were identified, and 20 articles published from 1996 to 2019 were analyzed. The articles used sample sizes from 9 to 101 individuals. However, two studies conducted online used 388 and 1568 samples. Prevalence of sexual dysfunction in all studies was reported from 31 to 92%, and the pooled prevalence of sexual dysfunction in men with MS in all studies was 62.9% with a 95% confidence interval 53 to 72.7% (heterogeneity: I2 = 96.3%, Q-statistic = 12.48, P value < 0.001). According to the results of Egger’s test, there was publication bias in the current study (β = 4.55, Se = 1.38, P value = 0.004). Conclusion Sexual dysfunction is highly prevalent in men with MS. Diagnosing sexual dysfunction in MS patients in clinics by specialists have to be considered a necessity.

scholarly journals The prevalence of paramagnetic rim lesions in multiple sclerosis: A systematic review and meta-analysis

PLoS ONE ◽  
2021 ◽  
Vol 16 (9) ◽  
pp. e0256845
Author(s):  
Koy Chong Ng Kee Kwong ◽  
Daisy Mollison ◽  
Rozanna Meijboom ◽  
Elizabeth N. York ◽  
Agniete Kampaite ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Systematic Review ◽  
Subgroup Analysis ◽  
Meta Analysis ◽  
Patient Level ◽  
Pooled Prevalence ◽  
Significant Difference ◽  
Disability Status ◽  
Lesion Level ◽  
Meta Regression

Background Recent findings from several studies have shown that paramagnetic rim lesions identified using susceptibility-based MRI could represent potential diagnostic and prognostic biomarkers in multiple sclerosis (MS). Here, we perform a systematic review and meta-analysis of the existing literature to assess their pooled prevalence at lesion-level and patient-level. Methods Both database searching (PubMed and Embase) and handsearching were conducted to identify studies allowing the lesion-level and/or patient-level prevalence of rim lesions or chronic active lesions to be calculated. Pooled prevalence was estimated using the DerSimonian-Laird random-effects model. Subgroup analysis and meta-regression were performed to explore possible sources of heterogeneity. PROSPERO registration: CRD42020192282. Results 29 studies comprising 1230 patients were eligible for analysis. Meta-analysis estimated pooled prevalences of 9.8% (95% CI: 6.6–14.2) and 40.6% (95% CI: 26.2–56.8) for rim lesions at lesion-level and patient-level, respectively. Pooled lesion-level and patient-level prevalences for chronic active lesions were 12.0% (95% CI: 9.0–15.8) and 64.8% (95% CI: 54.3–74.0), respectively. Considerable heterogeneity was observed across studies (I2>75%). Subgroup analysis revealed a significant difference in patient-level prevalence between studies conducted at 3T and 7T (p = 0.0312). Meta-regression analyses also showed significant differences in lesion-level prevalence with respect to age (p = 0.0018, R2 = 0.20) and disease duration (p = 0.0018, R2 = 0.48). Other moderator analyses demonstrated no significant differences according to MRI sequence, gender and expanded disability status scale (EDSS). Conclusion In this study, we show that paramagnetic rim lesions may be present in an important proportion of MS patients, notwithstanding significant variation in their assessment across studies. In view of their possible clinical relevance, we believe that clear guidelines should be introduced to standardise their assessment across research centres to in turn facilitate future analyses.

Complications of transradial versus transfemoral access for neuroendovascular procedures: a meta-analysis

2021 ◽  
pp. neurintsurg-2021-018032
Author(s):  
Derrek Schartz ◽  
Sajal Medha K Akkipeddi ◽  
Nathaniel Ellens ◽  
Redi Rahmani ◽  
Gurkirat Singh Kohli ◽  
...  
Keyword(s):  
Literature Review ◽  
Meta Analysis ◽  
Final Analysis ◽  
Case Control ◽  
Random Effects Model ◽  
Inclusion Criteria ◽  
Access Site ◽  
Lower Odds ◽  
Significant Difference ◽  
Study Heterogeneity

BackgroundTransradial access (TRA) has gained increased usage among neurointerventionalists. However, the overall safety profile of access site complications (ASCs) and non-access site complications (NASCs) of TRA versus transfemoral access (TFA) for neuroendovascular procedures remains unclear.MethodsA systematic literature review and meta-analysis using a random effects model was conducted to investigate the pooled odds ratios (OR) of ASCs and NASCs. Randomized, case–control, and cohort studies comparing access-related complications were analyzed. An assessment of study heterogeneity and publication bias was also completed.ResultsSeventeen comparative studies met the inclusion criteria for final analysis. Overall, there was a composite ASC rate of 1.8% (49/2767) versus 3.2% (168/5222) for TRA and TFA, respectively (P<0.001). TRA was associated with a lower odds of ASC compared with TFA (OR 0.42; 95% CI 0.25 to 0.68, P<0.001, I2=31%). There was significantly lower odds of complications within the intervention and diagnostic subgroups. For NASC, TRA had a lower composite incidence of complications than TFA at 1.2% (31/2586) versus 4.2% (207/4909), P<0.001). However, on meta-analysis, we found no significant difference overall between TRA and TFA for NASCs (OR 0.79; 95% CI 0.51 to 1.22, P=0.28, I2=0%), which was also the case on subgroup analysis.ConclusionOn meta-analysis, the current literature indicates that TRA is associated with a lower incidence of ASCs compared with TFA, but is not associated with a lower rate of NASCs.

scholarly journals Prevalence of Invasive Streptococcus pneumoniae Infections among Iranian Children: A Systematic Review and Meta-Analysis

2021 ◽  
Author(s):  
Arshid Yousefi Avarvand ◽  
Mehrdad Halaji ◽  
Donya Zare ◽  
Meysam Hasannejad-Bibalan ◽  
Hadi Sedigh Ebrahim-Saraie
Keyword(s):  
Systematic Review ◽  
Streptococcus Pneumoniae ◽  
Web Of Science ◽  
Data Extraction ◽  
Meta Analysis ◽  
Single Center ◽  
Inclusion Criteria ◽  
Pooled Prevalence ◽  
Iranian Children ◽  
The Web

Background: Streptococcus pneumoniae is an important pathogen of children, mostly in developing countries. We aimed to investigate the prevalence of invasive S. pneumoniae among Iranian children using a systematic review and meta-analysis. Methods: A systematic search was carried out to identify papers published by Iranian authors in the Web of Science, PubMed, Scopus, and Google Scholar electronic databases from January of 2010 to December of 2017. Then, seven publications that met our inclusion criteria were selected for data extraction and analysis. Results: Totally, one study was multicenter, and six were single-center based studies. Meanwhile, all of the included studied performed among hospitalized patients. Seven studies reported the prevalence of invasive S. pneumoniae isolated from children, of these the pooled prevalence of S. pneumoniae was 2.5% (95% CI: 0.7%-9.1%). Conclusion: The overall prevalence of invasive S. pneumoniae infections among Iranian children is low (2.5%). However, further clinical studies are required to elucidate the burden of infections among Iranian children, especially in eastern regions.

scholarly journals Prevalence of Headache in Patients With Coronavirus Disease 2019 (COVID-19): A Systematic Review and Meta-Analysis of 14,275 Patients

2020 ◽  
Vol 11 ◽  
Author(s):  
Md Asiful Islam ◽  
Sayeda Sadia Alam ◽  
Shoumik Kundu ◽  
Tareq Hossan ◽  
Mohammad Amjad Kamal ◽  
...  
Keyword(s):  
Systematic Review ◽  
Quality Assessment ◽  
Confidence Intervals ◽  
Random Effects ◽  
Critical Appraisal ◽  
Meta Analysis ◽  
Clinical Manifestations ◽  
Random Effects Model ◽  
Pooled Prevalence ◽  
Significant Difference

Background: Coronavirus disease 2019 (COVID-19) started to spread globally since December 2019 from Wuhan, China. Headache has been observed as one of the clinical manifestations in COVID-19 patients. We aimed to conduct a comprehensive systematic review and meta-analysis to estimate the overall pooled prevalence of headache in COVID-19 patients.Methods: PubMed, Scopus, ScienceDirect, and Google Scholar databases were searched to identify studies published between December 2019 and March 2020. Adult (≥18 years) COVID-19 patients were considered eligible. We used random-effects model to estimate the pooled prevalence with 95% confidence intervals (CIs). Quality assessment was done using the Joanna Briggs Institute critical appraisal tools. This study is registered with PROSPERO (CRD42020182529).Results: We identified 2,055 studies, of which 86 studies (n = 14,275, 49.4% female) were included in the meta-analysis. Overall, the pooled prevalence of headache in COVID-19 patients was 10.1% [95% CI: 8.76–11.49]. There was no significant difference of headache prevalence in severe or critical vs. non-severe (RR: 1.05, p = 0.78), survived (recovered or discharged) vs. non-survived (RR: 1.36, p = 0.23), and ICU vs. non-ICU (RR: 1.06, p = 0.87) COVID-19 patients. We detected 64.0, 34.9, and 1.1% of the included studies as high, moderate, and low quality, respectively.Conclusions: From the first 4-month data of the outbreak, headache was detected in 10.1% of the adult COVID-19 patients.

The value of TI-RADS combined with superb micro-vascular imagine in distinguishing benign and malignant thyroid nodules:a meta-analysis

2020 ◽  
Author(s):  
Cong Wang ◽  
Xiukun Hou
Keyword(s):  
Operating Characteristic ◽  
Thyroid Nodules ◽  
Web Of Science ◽  
Meta Analysis ◽  
Cochrane Library ◽  
Summary Statistics ◽  
Inclusion Criteria ◽  
High Diagnostic Accuracy ◽  
Significant Difference ◽  
Benign Nodules

Abstract This meta-analysis aimed to evaluate the value of thyroid imaging report and data system (TI-RADS) combined with superb micro-vascular imagine technique(SMI) in distinguishing benign and malignant thyroid nodules. We searched PubMed, Web of Science, Google Scholar, Cochrane Library, EBSCO, and CBM databases from inception through January 1st, 2015 without language restrictions. Meta-analysis was conducted using STATA version 14.0 and Meta-Disc version 1.4 softwares. We calculated the summary statistics for sensitivity(Sen), specificity(Spe), and receiver operating characteristic (SROC) curve. Six studies that met all inclusion criteria were included in this meta-analysis. A total of 408 thyroid malignant nodules and 496 thyroid benign nodules were assessed. All thyroid nodules were histologically confirmed after SMI. The pooled Sen and Spe of TI-RADS were 0.80(95%CI=0.71-0.87) and 0.82(95%CI=0.75-0.87); The pooled Sen and Spe of TI-RADS combined with SMI were 0.88 (95%CI=0.80-0.91) and 0.89 (95%CI=0.85-0.92). The areas under the SROC curve of TI-RADS and TI-RADS combined with SMI were 0.8874(SE=0.0165) and 0.9415(SE=0.0102), between which there was significant difference(Z=2.789; SE=0.0194; p =0.0053). Our meta-analysis indicates that TI-RADS combined with SMI may have high diagnostic accuracy, and is more effective than single TI-RADS in distinguishing benign and malignant thyroid nodules.

scholarly journals A Systematic Review and Meta-Analysis on the Association between Hypertension and Tinnitus

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Pan Yang ◽  
Wenjun Ma ◽  
Yiqing Zheng ◽  
Haidi Yang ◽  
Hualiang Lin
Keyword(s):  
Risk Factor ◽  
Odds Ratio ◽  
Prevention And Control ◽  
Web Of Science ◽  
Meta Analysis ◽  
Sufficient Information ◽  
Random Effects Model ◽  
Hypertension Prevention ◽  
Meta Regression ◽  
And Control

Hypertension has been suggested to be one possible risk factor of tinnitus, but the association between hypertension and tinnitus remains uncertain. The authors performed a meta-analysis of the existing studies on the association between hypertension and tinnitus. We performed literature search of studies using SinoMed, CNKI, WanFang, PubMed, Scopus, Web of Science, and Google Scholar. Studies reported the odds ratio and 95% confidence interval (CI) (or provided sufficient information for calculation) of the association between hypertension and tinnitus were included. A total of 19 eligible studies with 20 effect estimates were used in this study. They included 63,154 participants with age ranging from 14 to 92. The pooled OR, which was pooled using a random effects model, was 1.37 (95% CI: 1.16 to 1.62). There was no evidence of publication bias (p=0.11for Begg’s test,p=0.96for Egger’s test). By meta-regression, we found that study design may be one possible factor of heterogeneity. Sensitivity analysis found that the result was stable. This study suggests that hypertension might be one risk factor of tinnitus, and hypertension prevention and control might be helpful in preventing tinnitus.

scholarly journals The Effect of Creative Drama as a Method on Skills: A Meta-analysis Study

2018 ◽  
Vol 6 (4) ◽  
pp. 63 ◽  
Author(s):  
Özgür Ulubey
Keyword(s):  
Effect Size ◽  
Web Of Science ◽  
Meta Analysis ◽  
Experimental Studies ◽  
Random Effects Model ◽  
Creative Drama ◽  
Inclusion Criteria ◽  
Publication Type ◽  
Moderator Variables ◽  
Data Source

The aim of the current study was to synthesize the findings of experimental studies addressing the effect of the creative drama method on the skills of students. Research data were derived from ProQuest Citations, Web of Science, Google Academic, National Thesis Center, EBSCO, ERIC, Taylor & Francis Online, and ScienceDirect databases using keywords such as drama, and skill. A total of 63 research studies including twenty articles, thirty-four master’s and nine doctoral theses, which met the inclusion criteria of meta-analysis, formed the data source of the current study. The collected data were analyzed by using the Comprehensive Meta Analysis program. To address the heterogeneity of the studies, the random effects model were employed to calculate the effect size. The results of the research showed that creative drama method positively affected the skills of students. In experimental studies, the differences in the effect created by the creative drama on students' skills were examined in terms of moderator variables. While the effect size of creative drama on students’ skills was found to be significantly varying depending on the moderator variables including the duration of experimental application, the level of schooling and the publication type, it was found that the effect size was not significantly varying depending on the moderator variables of practitioner and types of skills.

scholarly journals Effect of Exercise on Fatigue in Multiple Sclerosis Patients: A Network Meta-analysis

2021 ◽  
Author(s):  
Yuting Chen ◽  
Shanshan Xu ◽  
Jiran Shen ◽  
Hui Yang ◽  
Wei Xu ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Web Of Science ◽  
Meta Analysis ◽  
Cochrane Library ◽  
Control Group ◽  
Inclusion Criteria ◽  
Randomized Controlled ◽  
Different Types ◽  
Multiple Sclerosis Patients ◽  
Better Than

AbstractFew studies have directly compared the effects of different exercise therapies on reducing fatigue in patients with multiple sclerosis. Thus, we conducted a Frequentist network meta-analysis to analyze and compare the effectiveness of different types of exercise on reducing multiple sclerosis-related fatigue. Relevant randomized controlled trials were searched in PubMed, Web of Science and Cochrane Library databases from the date of their inception up to April 1, 2021. In total, 27 articles involving 1470 participants and 10 types of interventions met the inclusion criteria. The results indicated that aquatic exercise ranked as the most effective among these interventions, and aerobic exercise had small-to-moderate effect sizes. Most of the interventions were shown to be better than the control group, except for climbing. Climbing was the only intervention that ranked worse than the controls. All of these findings merit further investigation in future clinical trials.

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