scholarly journals Prevalence of and Risk Factors for Dry Eye Symptom in Mainland China: A Systematic Review and Meta-Analysis

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Ning-ning Liu ◽  
Lei Liu ◽  
Jun Li ◽  
Yi-zhou Sun
Keyword(s):  
Risk Factors ◽  
Systematic Review ◽  
Dry Eye ◽  
Prevalence Rate ◽  
Meta Analysis ◽  
Mainland China ◽  
Female Gender ◽  
Population Based ◽  
Western China ◽  
Pooled Prevalence

Purpose. To evaluate the pooled prevalence rate and risk factors of dry eye symptoms (DES) in mainland China.Methods. All the published population-based studies investigating the prevalence of DES in China were searched and evaluated against inclusion criteria. A systematic review and meta-analysis were performed.Results. Twelve out of the 119 identified studies were included in the meta-analysis. The pooled prevalence of DES in China was 17.0%. Female individuals, subjects living in the Northern and Western China, and over 60 years of age had significantly higher prevalent rates (21.6%, 17.9%, 31.3%, and 34.4%, resp.) compared with their counterparts. Patients with diabetes were also found to be more vulnerable to DES.Conclusions. The pooled prevalence rate of DES in mainland China was lower than that in other Asian regions and countries. A remarkable discrepancy in the prevalence in different geographic regions was noted. Aging, female gender, and diabetes were found to be risk factors for DES in China.

scholarly journals Prevalence of Primary Angle Closure Glaucoma in the Last 20 Years: A Meta-Analysis and Systematic Review

2021 ◽  
Vol 7 ◽  
Author(s):  
Nan Zhang ◽  
Jiaxing Wang ◽  
Biyue Chen ◽  
Ying Li ◽  
Bing Jiang
Keyword(s):  
Risk Factors ◽  
Systematic Review ◽  
Meta Analysis ◽  
Population Based ◽  
Angle Closure Glaucoma ◽  
Angle Closure ◽  
Cross Sectional ◽  
Primary Angle Closure ◽  
Primary Angle Closure Glaucoma ◽  
Pooled Prevalence

Purpose: This meta-analysis aims to investigate the worldwide prevalence of primary angle-closure glaucoma (PACG) and its risk factors in the last 20 years.Methods: We conducted a systematic review and meta-analysis of 37 population-based studies and 144,354 subjects. PubMed, Embase, and Web of Science databases were searched for cross-sectional or cohort studies published in the last 20 years (2000–2020) that reported the prevalence of PACG. The prevalence of PACG was analyzed according to various risk factors. A random-effects model was used for the meta-analysis.Results: The global pooled prevalence of PACG was 0.6% [95% confidence interval (CI) = 0.5–0.8%] for the last 20 years. The prevalence of PACG increases with age. Men are found less likely to have PACG than women (risk ratio = 0.71, 95% CI = 0.53–0.93, p < 0.01). Asia is found to have the highest prevalence of PACG (0.7%, 95% CI = 0.6–1.0%). The current estimated population with PACG is 17.14 million (95% CI = 14.28–22.85) for people older than 40 years old worldwide, with 12.30 million (95% CI = 10.54–17.57) in Asia. It is estimated that by 2050, the global population with PACG will be 26.26 million, with 18.47 million in Asia.Conclusion: PACG affects more than 17 million people worldwide, especially leading a huge burden to Asia. The prevalence of PACG varies widely across different ages, sex, and population geographic variation. Asian, female sex, and age are risk factors of PACG.

scholarly journals Factors affecting the incidence of postoperative periprosthetic fractures following primary and revision hip arthroplasty: a systematic review and meta-analysis

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Christos Bissias ◽  
Angelos Kaspiris ◽  
Athanasios Kalogeropoulos ◽  
Konstantinos Papoutsis ◽  
Nikolaos Natsioulas ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Risk Factors ◽  
Systematic Review ◽  
Meta Analysis ◽  
Revision Arthroplasty ◽  
Female Gender ◽  
Periprosthetic Fractures ◽  
Factors Affecting ◽  
Potential Risk Factors ◽  
Grade 3

Abstract Objectives The increasing number of hip arthroplasties (HA), due to the growing elderly population, is associated with the risk of femoral periprosthetic fractures (FPFs). The purpose of this study was to identify potential risk factors for the development of FPFs after HA. Methods A systematic review was conducted in five data bases (Medline, Embase, Cochrane, Cinahl, ICTRP) according to the Preferred Reporting Items for Systematic reviews and Meta-analysis (PRISMA) guidelines up to May 2019, using the key words “risk factor,” “periprosthetic fracture,” and “hip replacement or arthroplasty.” Meta-analysis of the clinical outcomes of HA and subgroup analysis based on the factors that were implicated in FPFs was performed. Results Sixteen studies were included (sample size: 599,551 HA patients, 4253 FPFs, incidence 0.71%). Risk factors statistically associated with increased incidence of FPFs were female gender (+ 40%), previous revision arthroplasty surgery (× 3 times), and the presence of rheumatoid arthritis (× 2.1 times), while osteoarthritis (− 57%), cement application (− 59%), and insertion of Biomet (− 68%) or Thompson’s prosthesis (− 75%) were correlated with low prevalence of FPFs. Obesity, cardiac diseases, advanced age, bad general health (ASA grade ≥ 3), and use of Exeter or Lubinus prosthesis were not linked to the appearance of FPFs. Conclusion This meta-analysis suggested that female gender, rheumatoid arthritis, and revision arthroplasty are major risk factors for the development of FPFs after a HA. In those patients, frequent follow-ups should be planned. Further prospective studies are necessary to clarify all the risk factors contributing to the appearance of FPFs after HA.

scholarly journals The prevalence of diabetes in Afghanistan: a systematic review and meta-analysis

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Sohail Akhtar ◽  
Jamal Abdul Nasir ◽  
Amara Javed ◽  
Mariyam Saleem ◽  
Sundas Sajjad ◽  
...  
Keyword(s):  
Risk Factors ◽  
Systematic Review ◽  
Methodological Quality ◽  
Meta Analysis ◽  
Population Based ◽  
Included Study ◽  
Cochrane Library ◽  
Or Education ◽  
Meta Regression

Abstract Background The aim of this paper is to investigate the prevalence of diabetes and its associated risk factors in Afghanistan through a systematic review and meta–analysis. Methods A comprehensive literature search was conducted using EMBASE, PubMed, Web of Sciences, Google Scholar and the Cochrane library, carried out from inception to April 312,020, without language restriction. Meta–analysis was performed using DerSimonian and Laird random-effects models with inverse variance weighting. The existence of publication bias was initially assessed by visual inspection of a funnel plot and then tested by the Egger regression test. Subgroup analyses and meta-regression were used to explore potential sources of heterogeneity. This systematic review was reported by following the PRISMA guidelines and the methodological quality of each included study was evaluated using the STROBE guidelines. Results Out of 64 potentially relevant studies, only 06 studies fulfilled the inclusion criteria and were considered for meta-analysis. The pooled prevalence of diabetes in the general population based on population-based studies were 12.13% (95% CI: 8.86–16.24%), based on a pooled sample of 7071 individuals. Results of univariate meta-regression analysis revealed that the prevalence of diabetes increased with mean age, hypertension and obesity. There was no significant association between sex (male vs female), smoking, the methodological quality of included articles or education (illiterate vs literate) and the prevalence of diabetes. Conclusions This meta-analysis reports the 12.13% prevalence of diabetes in Afghanistan,with the highest prevalence in Kandahar and the lowest in Balkh province. The main risk factors include increasing age, obesity and hypertension. Community-based care and preventive training programmes are recommended. Trial registration This review was registered on PROSPERO (registration number CRD42020172624).

scholarly journals Prevalence and impact of frailty in patients with atrial fibrillation: a systematic review and meta-analysis

2021 ◽  
Vol 42 (Supplement_1) ◽  
Author(s):  
M Proietti ◽  
G.F Romiti ◽  
V Raparelli ◽  
I Diemberger ◽  
G Boriani ◽  
...  
Keyword(s):  
Risk Factors ◽  
Atrial Fibrillation ◽  
Systematic Review ◽  
Meta Analysis ◽  
Frailty Index ◽  
Prevalence Odds Ratio ◽  
Frail Patients ◽  
Pooled Prevalence ◽  
Increased Risk ◽  
Inconsistency Index

Abstract Background Frailty is a clinical syndrome characterized by a reduced physiologic function, increased vulnerability to stressors, and an increased risk of adverse outcomes. Patients with Atrial Fibrillation (AF) are often burdened with a high number of comorbidities and prone to frailty. The prevalence of frailty, its management and association with major outcomes in patients with AF are still unclear. Purpose To estimate the pooled prevalence of frailty in patients with AF, as well as its association with AF-related risk factors and comorbidities, oral anticoagulants (OAC) prescription, and major outcomes. Methods We systematically searched PubMed and EMBASE, from inception to 31st January 2021, for studies reporting the prevalence of frailty (irrespective of the tool used for assessment). Pooled prevalence, odds ratio (OR), and 95% Confidence Intervals (CI) were computed using random-effect models; heterogeneity was assessed through the inconsistency index (I2). This study was registered in PROSPERO: CRD42021235854. Results A total of 1,116 studies were retrieved from the literature search, and 31 were finally included in the systematic review (n=842,521 patients). The frailty pooled prevalence was 39.6% (95% CI=29.2%-51.0%, I2=100%; Figure 1). Significant subgroup differences were observed according to geographical location (higher prevalence found in European-based cohorts; p=0.003) and type of tool used for the assessment (higher prevalence in studies using the Clinical Frailty Scale and Tilburg Frailty Index tools; p<0.001). Meta-regressions showed that study-level mean age and prevalence of hypertension, diabetes, and history of stroke were directly associated with frailty prevalence. Frailty was significantly associated with a 29% reduced probability of OAC prescription in observational studies (OR=0.71, 95% CI=0.62–0.81). Frail patients with AF were at higher risk of all-cause death (OR=4.12, 95% CI=3.15–5.41), ischemic stroke (OR=1.55, 95% CI=1.01–2.38), and bleeding (OR=1.55, 95% CI=1.12–2.14), compared to non-frail patients with AF. Conclusions In this systematic review and meta-analysis analysis, the prevalence of frailty was high in patients with AF, and associated with study-level mean age and prevalence of several stroke risk factors. Frailty may influence the management of patients, and worsening the prognosis for all major AF-related outcomes. FUNDunding Acknowledgement Type of funding sources: None. Prevalence of Frailty among AF patients

scholarly journals Prevalence and risk factors associated with birth asphyxia among neonates delivered in Ethiopia: A systematic review and meta-analysis

PLoS ONE ◽  
2021 ◽  
Vol 16 (8) ◽  
pp. e0255488
Author(s):  
Ritbano Ahmed ◽  
Hassen Mosa ◽  
Mohammed Sultan ◽  
Shamill Eanga Helill ◽  
Biruk Assefa ◽  
...  
Keyword(s):  
Risk Factors ◽  
Systematic Review ◽  
Meta Analysis ◽  
Grey Literature ◽  
Birth Asphyxia ◽  
Public Health Problem ◽  
Cochrane Library ◽  
Chronic Hypertension ◽  
Factors Associated ◽  
Pooled Prevalence

Background A number of primary studies in Ethiopia address the prevalence of birth asphyxia and the factors associated with it. However, variations were seen among those studies. The main aim of this systematic review and meta-analysis was carried out to estimate the pooled prevalence and explore the factors that contribute to birth asphyxia in Ethiopia. Methods Different search engines were used to search online databases. The databases include PubMed, HINARI, Cochrane Library and Google Scholar. Relevant grey literature was obtained through online searches. The funnel plot and Egger’s regression test were used to see publication bias, and the I-squared was applied to check the heterogeneity of the studies. Cross-sectional, case-control and cohort studies that were conducted in Ethiopia were also be included. The Joanna Briggs Institute checklist was used to assess the quality of the studies and was included in this systematic review. Data entry and statistical analysis were carried out using RevMan 5.4 software and Stata 14. Result After reviewing 1,125 studies, 26 studies fulfilling the inclusion criteria were included in the meta-analysis. The pooled prevalence of birth asphyxia in Ethiopia was 19.3%. In the Ethiopian context, the following risk factors were identified: Antepartum hemorrhage(OR: 4.7; 95% CI: 3.5, 6.1), premature rupture of membrane(OR: 4.0; 95% CI: 12.4, 6.6), primiparas(OR: 2.8; 95% CI: 1.9, 4.1), prolonged labor(OR: 4.2; 95% CI: 2.8, 6.6), maternal anaemia(OR: 5.1; 95% CI: 2.59, 9.94), low birth weight(OR = 5.6; 95%CI: 4.7,6.7), meconium stained amniotic fluid(OR: 5.6; 95% CI: 4.1, 7.5), abnormal presentation(OR = 5.7; 95% CI: 3.8, 8.3), preterm birth(OR = 4.1; 95% CI: 2.9, 5.8), residing in a rural area (OR: 2.7; 95% CI: 2.0, 3.5), caesarean delivery(OR = 4.4; 95% CI:3.1, 6.2), operative vaginal delivery(OR: 4.9; 95% CI: 3.5, 6.7), preeclampsia(OR = 3.9; 95% CI: 2.1, 7.4), tight nuchal cord OR: 3.43; 95% CI: 2.1, 5.6), chronic hypertension(OR = 2.5; 95% CI: 1.7, 3.8), and unable to write and read (OR = 4.2;95%CI: 1.7, 10.6). Conclusion According to the findings of this study, birth asphyxia is an unresolved public health problem in the Ethiopia. Therefore, the concerned body needs to pay attention to the above risk factors in order to decrease the country’s birth asphyxia. Review registration PROSPERO International prospective register of systematic reviews (CRD42020165283).

Prevalence of epilepsy in autism spectrum disorders: A systematic review and meta-analysis

Autism ◽  
2021 ◽  
pp. 136236132110450
Author(s):  
Xian Liu ◽  
Xin Sun ◽  
Caihong Sun ◽  
Mingyang Zou ◽  
Yiru Chen ◽  
...  
Keyword(s):  
Systematic Review ◽  
Intellectual Disability ◽  
Human Development ◽  
Human Development Index ◽  
Clinical Sample ◽  
Meta Analysis ◽  
Population Based ◽  
Cross Sectional ◽  
Development Index ◽  
Pooled Prevalence

The literature from inception to 2020 on the prevalence of epilepsy in autistic individuals was systematically reviewed and further explored by subgroup analyses and meta-regression models. This systematic review is registered with PROSPERO (CRD42020179725). A total of 66 studies from 53 articles were included. The updated pooled prevalence of epilepsy in autistic individuals was 10% (95% CI: 6–14). The respective prevalence estimate of epilepsy was 19% (95% CI: 6–35) in the clinical sample-based cross-sectional study, 7% (95% CI: 3–11) in the cohort study, and 9% (95% CI: 5–15) in the population-based cross-sectional study. The pooled prevalence of epilepsy was 7% (95% CI: 4–11) in autistic children and 19% (95% CI: 14–24) in autistic adults. Compared to the school-aged group, the adolescence group (OR: 1.15, 95% CI: 1.06–1.25) and the pre-school group (OR: 1.06, 95% CI: 0.94–1.19) were positively associated with the prevalence of epilepsy. The moderators of age, human development index of the country, gender, and intellectual function accounted for most of the heterogeneity. The prevalence estimates were associated with age, female gender, intellectual disability rate, and the human development index of countries. About 1/10 autistic individuals co-occurred with epilepsy, which was common in the clinical setting, adolescents, adults, females, or patients with intellectual disability, and less common in the country with high human development index. Lay abstract Autistic individuals experience higher co-occurring medical conditions than the general population, and yet the estimates of autistic individuals with epilepsy are not updated. Co-occurrence of epilepsy in autistic individuals often aggravated cognitive impairment and increased the risk of poor long-term prognosis. Thus, an updated systematic review and meta-analysis was conducted to study the relevant articles published from inception to 2020, evaluate the prevalence of epilepsy in autistic individuals, and further explore the putative factors influencing the prevalence. A total of 66 studies from 53 articles were included in this study. The results showed that epilepsy is more common in autistic individuals than in the general population. The prevalence of epilepsy in autistic individuals in the clinical sample-based studies was higher than that in the population-based based cross-sectional or cohort studies. The prevalence of epilepsy in autistic adults was higher than that in autistic children. A significantly increased prevalence of epilepsy was detected in the autistic adolescent group (11–17 years old), and a higher trend of prevalence of epilepsy was observed in the autistic pre-school group (⩽ 6 -years-old) than that of the autistic school-aged group (7–10 years-old). The prevalence of epilepsy increased with age, female rate, and low intellectual function rate of autistic individuals. However, the human development index of countries was negatively associated with the pooled prevalence, which could be attributed to the different levels of awareness, diagnostic technologies, and autism-service support worldwide. About 1/10 autistic individuals also had epilepsy, which was common in the clinical setting, adolescents, adults, females, or patients with intellectual disability and less common in the country with high human development index. Thus, these findings provided critical and innovative views on the prevalence of epilepsy in autistic individuals and contributed to the targeted clinical management and preventive measures.

scholarly journals Prevalence of and risk factors for Plasmodium spp. co-infection with hepatitis B virus: a systematic review and meta-analysis

2020 ◽  
Vol 19 (1) ◽  
Author(s):  
Kwuntida Uthaisar Kotepui ◽  
Manas Kotepui
Keyword(s):  
Risk Factors ◽  
Systematic Review ◽  
Hepatitis B Virus ◽  
Meta Analysis ◽  
Infection Group ◽  
Pooled Prevalence ◽  
B Virus ◽  
The Difference ◽  
Meta Analyses

Abstract Background Plasmodium spp. and hepatitis B virus (HBV) are among the most common infectious diseases in underdeveloped countries. This study aimed to determine the prevalence of Plasmodium spp. and HBV co-infection in people living in endemic areas of both diseases and to assess the risk factors related to this co-infection. Methods The PubMed, Web of Science, and Scopus databases were searched. Observational cross-sectional studies and retrospective studies assessing the prevalence of Plasmodium species and HBV co-infection were examined. The methodological quality of the included studies was assessed with the Newcastle-Ottawa Scale (NOS), a tool for assessing the quality of nonrandomized studies in meta-analyses, and heterogeneity among the included studies was assessed with Cochran's Q test and the I2 (inconsistency) statistic. The pooled prevalence of the co-infection and its 95% confidence interval (CI) were estimated using the random-effects model, depending on the amount of heterogeneity there was among the included studies. The pooled odds ratio (OR) represented the difference in qualitative variables, whereas the pooled mean difference (MD) represented the difference in quantitative variables. Meta-analyses of the potential risk factors for Plasmodium spp. and HBV co-infection, including patient age and gender, were identified and represented as pooled odds ratios (OR) and 95% CIs. Publication bias among the included studies was assessed by visual inspection of a funnel plot to search for asymmetry. Results Twenty-two studies were included in the present systematic review and meta-analysis. Overall, the pooled prevalence estimate of Plasmodium spp. and HBV co-infection was 6% (95% CI 4–7%, Cochran's Q statistic < 0.001, I2: 95.8%), with prevalences of 10% in Gambia (95% CI: 8–12%, weight: 4.95%), 8% in Italy (95% CI 5–12%, weight: 3.8%), 7% in Nigeria (95% CI 4–10%, weight: 53.5%), and 4% in Brazil (95% CI 2–5%, weight: 19.9%). The pooled prevalence estimate of Plasmodium spp. and HBV co-infection was higher in studies published before 2015 (7%, 95% CI 4–9%, Cochran's Q statistic < 0.001, I2: 96%) than in those published since 2015 (3%, 95% CI 1–5%, Cochran's Q statistic < 0.001, I2: 81.3%). No difference in age and risk of Plasmodium spp. and HBV co-infection group was found between the Plasmodium spp. and HBV co-infection and the Plasmodium monoinfection group (p: 0.48, OR: 1.33, 95% CI 0.60–2.96). No difference in gender and risk of Plasmodium spp. and HBV co-infection group was found between the Plasmodium spp. and HBV co-infection and HBV co-infection group and the Plasmodium monoinfection group (p: 0.09, OR: 2.79, 95% CI 0.86–9.10). No differences in mean aspartate aminotransferase (AST), mean alanine aminotransferase (ALT), or mean total bilirubin levels were found (p > 0.05) between the Plasmodium spp. and HBV co-infection group and the Plasmodium monoinfection group. Conclusions The present study revealed the prevalence of Plasmodium spp. and HBV co-infection, which will help in understanding co-infection and designing treatment strategies. Future studies assessing the interaction between Plasmodium spp. and HBV are recommended.

scholarly journals Prevalence and progression of incidental terminal ileitis on non-diagnostic colonoscopy: a systematic review and meta-analysis

2021 ◽  
Author(s):  
Manasi Agrawal ◽  
Mario Bento-Miranda ◽  
Samantha Walsh ◽  
Neeraj Narula ◽  
Jean-Frederic Colombel ◽  
...  
Keyword(s):  
Systematic Review ◽  
Prevalence Rate ◽  
Meta Analysis ◽  
Significant Heterogeneity ◽  
Long Term Outcomes ◽  
Diagnostic Colonoscopy ◽  
Terminal Ileitis ◽  
Pooled Prevalence

Abstract Background Incidentally-diagnosed terminal ileitis (IDTI) has been reported among asymptomatic persons undergoing non-diagnostic colonoscopy. The purpose of our study was to determine the prevalence and long-term outcomes of asymptomatic terminal ileitis. Methods We performed a systematic review using three biomedical databases (Medline, Embase and Web of Science) and relevant scientific meeting abstracts. We identified observational studies that reported the prevalence of IDTI in adults undergoing screening or polyp surveillance colonoscopy and/or the long-term outcomes of such lesions. A random-effects meta-analysis was conducted to determine the pooled prevalence rate of IDTI. The progression of IDTI to overt Crohn’s disease (CD) was also described. Results Of 2,388 eligible studies, 1,784 were screened after excluding duplicates, 84 were reviewed in full text, and 14 studies were eligible for inclusion. Seven studies reported the prevalence of IDTI in 44,398 persons undergoing non-diagnostic colonoscopy, six studies reported follow-up data, and one study reported both types of data. The pooled prevalence rate of IDTI was 1.6% (CI 0.1–21.8%) with significant heterogeneity (I 2 = 99.7). Among patients who had undergone non-diagnostic colonoscopy and had follow-up data (range 13–84 months reported in five studies), progression to overt CD was rare. Conclusion IDTI is not uncommon on non-diagnostic colonoscopies. Based on limited data, the rate of its progression to overt CD seems low, and watchful waiting is likely a reasonable strategy. Further long-term follow-up studies are needed to inform the natural history of incidental terminal ileitis, factors that predict progression to CD, and therapeutic implications.

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