scholarly journals Low Protein Intake Is Associated with Frailty in Older Adults: A Systematic Review and Meta-Analysis of Observational Studies

Nutrients ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1334 ◽  
Author(s):  
Hélio Coelho-Júnior ◽  
Bruno Rodrigues ◽  
Marco Uchida ◽  
Emanuele Marzetti
Keyword(s):  
Systematic Review ◽  
Older Adults ◽  
Protein Intake ◽  
Observational Studies ◽  
Meta Analysis ◽  
Cochrane Library ◽  
Cross Sectional ◽  
Frailty Status ◽  
Search Terms ◽  
Meta Analyses

(1) Background: Several factors have been suggested to be associated with the physiopathology of frailty in older adults, and nutrition (especially protein intake) has been attributed fundamental importance in this context. The objective of this study was to conduct a systematic review and meta-analysis to investigate the relationship between protein intake and frailty status in older adults. (2) Methods: A search of scientific studies was conducted in the main databases (Medline, Scopus, Cochrane library), and in the reference lists of selected articles. The search terms included synonyms and Medical Subject Headings and involved the use of Boolean operators which allowed the combination of words and search terms. Observational studies—cross-sectional and longitudinal—that met the eligibility criteria were included in the review. Article selection and data extraction were performed by two independent reviewers. Meta-analyses with random effects were performed. Publication bias was measured using the Strengthening the Reporting of Observational Studies in Epidemiology instrument. (3) Results: In the final sample, 10 articles, seven cross-sectional and three longitudinal, were included in the present study. Overall, studies investigated a total of 50,284 older adults from three different continents between 2006 and 2018. Four cross-sectional studies were included in the meta-analyses. The results demonstrated that a high protein intake was negatively associated with frailty status in older adults (odds ratio: 0.67, confidence interval = 0.56 to 0.82, p = 0.0001). (4) Conclusions: Our findings suggest that a high consumption of dietary protein is inversely associated with frailty in older adults.

scholarly journals The Mediterranean Dietary Pattern and Inflammation in Older Adults: A Systematic Review and Meta-analysis

2020 ◽  
Author(s):  
Pei-Yu Wu ◽  
Kuei-Min Chen ◽  
Wan-Chi Tsai
Keyword(s):  
Systematic Review ◽  
Older Adults ◽  
Dietary Pattern ◽  
Meta Analysis ◽  
Cochrane Library ◽  
Cross Sectional ◽  
Mediterranean Dietary Pattern ◽  
Cross Sectional Studies ◽  
The Mediterranean ◽  
Meta Analyses

ABSTRACT This systematic review and meta-analysis aimed to explore the association between the Mediterranean dietary pattern and inflammation in older adults. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed. A search of the literature was conducted up to June 2020 in 7 electronic databases, namely PubMed, Embase, Web of Science, Scopus, Cochrane Library, Cumulative Index to Nursing and Allied Health Literature (CINAHL), and ProQuest. The Joanna Briggs Institute Critical Appraisal Checklists and the Newcastle-Ottawa Scale were used to assess the methodological quality. The overall standardized mean difference (SMD) and 95% CIs were estimated in random-effects meta-analyses. Thirteen studies were identified as having acceptable quality and were included in this systematic review: 3 randomized controlled trials (RCTs), 1 quasi-experimental study, 1 cohort study, and 8 cross-sectional studies. The circulating C-reactive protein (CRP) concentration was the most common inflammation indicator used. Results of the meta-analysis on 5 cross-sectional studies revealed a significant inverse association between the Mediterranean dietary pattern and inflammation as assessed by CRP (SMD = −0.26; 95% CI: −0.41, −0.11; P < 0.001). Other studies that investigated a variety of inflammation indicators other than CRP showed mixed results with regard to the relation between the Mediterranean dietary pattern and inflammation in older adults. Our findings suggest that the Mediterranean dietary pattern may be associated with lower inflammation in older adults. However, more long-term RCTs are required to demonstrate the effects of the Mediterranean dietary pattern on multiple inflammation parameters in older adults. The study has been registered on PROSPERO (#CRD42020140145).

scholarly journals Neighbourhood socioeconomic status and overweight/obesity: a systematic review and meta-analysis of epidemiological studies

BMJ Open ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. e028238 ◽  
Author(s):  
Shimels Hussien Mohammed ◽  
Tesfa Dejenie Habtewold ◽  
Mulugeta Molla Birhanu ◽  
Tesfamichael Awoke Sissay ◽  
Balewgizie Sileshi Tegegne ◽  
...  
Keyword(s):  
Systematic Review ◽  
Socioeconomic Status ◽  
Observational Studies ◽  
Data Extraction ◽  
Meta Analysis ◽  
Epidemiological Studies ◽  
Cochrane Library ◽  
Eligibility Criteria ◽  
Cross Sectional ◽  
Neighbourhood Socioeconomic Status

ObjectiveLow neighbourhood socioeconomic status (NSES) has been linked to a higher risk of overweight/obesity, irrespective of the individual’s own socioeconomic status. No meta-analysis study has been done on the association. Thus, this study was done to synthesise the existing evidence on the association of NSES with overweight, obesity and body mass index (BMI).DesignSystematic review and meta-analysis.Data sourcesPubMed, Embase, Scopus, Cochrane Library, Web of Sciences and Google Scholar databases were searched for articles published until 25 September 2019.Eligibility criteriaEpidemiological studies, both longitudinal and cross-sectional ones, which examined the link of NSES to overweight, obesity or BMI, were included.Data extraction and synthesisData extraction was done by two reviewers, working independently. The methodological quality of included studies was assessed using the Newcastle-Ottawa Scale for the observational studies. The summary estimates of the relationships of NSES with overweight, obesity and BMI statuses were calculated with random-effects meta-analysis models. Heterogeneity was assessed by Cochran’s Q and I2 statistics. Subgroup analyses were done by age categories, continents, study designs and NSES measures. Publication bias was assessed by visual inspection of funnel plots and Egger’s regression test.ResultA total of 21 observational studies, covering 1 244 438 individuals, were included in this meta-analysis. Low NSES, compared with high NSES, was found to be associated with a 31% higher odds of overweight (pooled OR 1.31, 95% CI 1.16 to 1.47, p<0.001), a 45% higher odds of obesity (pooled OR 1.45, 95% CI 1.21 to 1.74, p<0.001) and a 1.09 kg/m2 increase in mean BMI (pooled beta=1.09, 95% CI 0.67 to 1.50, p<0.001).ConclusionNSES disparity might be contributing to the burden of overweight/obesity. Further studies are warranted, including whether addressing NSES disparity could reduce the risk of overweight/obesity.PROSPERO registration numberCRD42017063889

scholarly journals Association of parenting with suicidal ideation and attempts in children and youth: protocol for a systematic review and meta-analysis of observational studies

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Florence Perquier ◽  
Sarah Hetrick ◽  
Terri Rodak ◽  
Xin Jing ◽  
Wei Wang ◽  
...  
Keyword(s):  
Systematic Review ◽  
Suicidal Ideation ◽  
Observational Studies ◽  
Meta Analysis ◽  
Random Effect ◽  
Children And Youth ◽  
Cochrane Library ◽  
Significant Heterogeneity ◽  
Cross Sectional ◽  
Wide Range

Abstract Background Suicide is a leading cause of death in children and youth, with suicidal thoughts and suicide attempts (referred to as non-fatal suicidal behaviors (NFSB)) being among its strongest predictors. Positive parenting (e.g., warmth, responsiveness), negative parenting (e.g., control, hostility), and parent-child relationship quality (e.g., trust, communication) have been reported to be associated with differences in NFSB in this population. To date, no comprehensive systematic review has considered together the wide range of parenting factors studied in relation to NFSB, and no meta-analysis of existing findings has been conducted. The present study will critically appraise and synthesize the existing evidence from observational studies that examine the relationships between parenting factors and (i) suicidal ideation and (ii) suicide attempt in children and youth. Methods Studies will be retrieved from APA PsycInfo, MEDLINE, CINAHL, Embase, Scopus, and the Cochrane Library databases. Retrospective, cross-sectional, and longitudinal studies, conducted in clinical and population settings, among youth aged less than 25 years and published as articles and dissertations in English or French will be eligible. Two reviewers will select articles using the Covidence Software after title and abstract screening and full-text assessment, will extract information using double data entry, and will appraise studies’ quality using the Quality Assessment Tool for Observational Cohort and Cross-Sectional Studies. Any disagreements will be discussed with a third reviewer. Publication bias will be evaluated using funnel plots and Egger’s test. In addition to a narrative summary of results, meta-analyses will be conducted using results from at least three studies. Three-level random effect models will allow to derive pooled estimates from dependent effect sizes (from the same sample or study). In case of significant heterogeneity, moderation analyses will be performed considering participants’ characteristics and methodological aspects of studies. The results will be reported according to the PRISMA guidelines, and the certainty of evidence will be assessed using the GRADE approach. Discussion In highlighting parenting factors associated with NFSB and in estimating the overall strength of these associations in children and youth, our results will inform further intervention and prevention strategies designed for young people experiencing NFSB and their families. Systematic review registration PROSPERO CRD42020165345

scholarly journals Association between climate conditions and osteoarthritis: protocol for a systematic review and meta-analysis

2021 ◽  
Author(s):  
Lin Wang ◽  
Qinguang Xu ◽  
Yan Chen ◽  
Yan Xue ◽  
Ding Jiang ◽  
...  
Keyword(s):  
Systematic Review ◽  
Observational Studies ◽  
Data Extraction ◽  
Meta Analysis ◽  
Weather Conditions ◽  
Cochrane Library ◽  
Climate Conditions ◽  
Relative Risks ◽  
Newcastle Ottawa Scale ◽  
Meta Analyses

Abstract Background Osteoarthritis (OA) is the most common form of arthritis, causing by multiple factors. It has long been a belief that arthritis pain is influenced by the weather. However, scientific studies have documented inconsistent results. To date, neither systematic review nor meta-analysis of existing findings has comprehensively considered their relations. The present study will critically appraise and synthesize the existing evidence from observational studies that examined the relationship between certain climate conditions and OA. Methods and design: This protocol will be conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Protocols (PRISMA-P) guidelines. There are no restrictions on the study date or publication status for searches in the Cochrane Library, EMBASE, Web of Science, PubMed, and other relative databases. All eligible observational studies will be included, with weather conditions as effect factors and OA symptom or imaging abnormality as outcomes. Two reviewers will be responsible for data extraction and analysis. Risk of bias and quality appraisal will be performed for the included studies using Newcastle-Ottawa Scale (NOS). Meta-analysis will be conducted using Rev Man V.5.3 with the associations between weather conditions and OA presented by odds ratios (ORs), relative risks (RRs), hazard ratios (HRs) and the 95% confidence intervals (CIs). Results This systematic review and meta-analysis will present the overall association between weather conditions and OA. The association of climate factors influencing OA incidence or progression would be further illustrated in subgroup analysis depending on whether that has been extensively described in the literature. Discussion This study will provide the analysis evidence on the effect of meteorological factors on OA. In an approach of dealing with weather conditions, the results will benefit the daily management of OA.

scholarly journals Association between hearing loss and frailty: a systematic review and meta-analysis

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Rong Tian ◽  
Osvaldo P. Almeida ◽  
Dona M. P. Jayakody ◽  
Andrew H. Ford
Keyword(s):  
Systematic Review ◽  
Hearing Loss ◽  
Observational Studies ◽  
Meta Analysis ◽  
Later Life ◽  
Sensitivity Analyses ◽  
Cross Sectional ◽  
Quality Rating ◽  
Meta Analyses ◽  
Study Quality Assessment

Abstract Background Frailty is associated with poor health outcomes in later life. Recent studies suggested that hearing loss may be a potentially modifiable risk factor associated with frailty. Methods This systematic review and meta-analysis aimed to investigate the association between hearing loss and frailty in observational studies of adults aged 50 years or over. We included observational studies with participants ≥ 50 years old that have clear descriptions of hearing and frailty measurement methods. Meta-analyses were conducted using measurement of risk and 95 % confidence interval of each individual study. Quality assessment, risk of bias, heterogeneity and sensitivity analyses were also conducted. Our study followed PRISMA guidelines. Results Our search identified 4508 manuscripts published in English between 1 and 2000 and 9 February 2021. Sixteen articles reported acceptable measurements of both hearing loss and frailty. Two papers were not suitable for meta-analysis. Twelve sets of cross-sectional data involving 12,313 participants, and three sets of longitudinal data involving 3042 participants were used in the meta-analysis. Hearing loss was associated with an 87 % increase in the risk of frailty among cross-sectional studies (risk ratio [RR] 1.87; 95 %CI 1.63–2.13) and 56 % among longitudinal studies (RR 1.56; 95 %CI 1.29–1.88). There was considerable heterogeneity among studies, but their quality rating, sample size or approach used to assess hearing loss did not change the results substantially. Conclusions The findings of this systematic review and meta-analysis of observational studies suggest that hearing loss increases the risk of frailty in later life. Whether this relationship is causal remains to be determined.

scholarly journals Low Vitamin D Levels and Frailty Status in Older Adults: A Systematic Review and Meta-Analysis

Nutrients ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 2286 ◽  
Author(s):  
Diego Marcos-Pérez ◽  
María Sánchez-Flores ◽  
Stefania Proietti ◽  
Stefano Bonassi ◽  
Solange Costa ◽  
...  
Keyword(s):  
Systematic Review ◽  
Older Adults ◽  
Vitamin D ◽  
Meta Analysis ◽  
Serum Vitamin ◽  
Sensitivity Analyses ◽  
Intermediate Step ◽  
Cross Sectional ◽  
Vitamin D Levels ◽  
Meta Analyses

Serum vitamin D deficiency is widespread among older adults and is a potential modifiable risk factor for frailty. Moreover, frailty has been suggested as an intermediate step in the association between low levels of vitamin D and mortality. Hence, we conducted a systematic review of the literature and meta-analysis to test the possible association of low concentrations of serum 25-hydroxyvitamin D (25(OH)D), a marker of vitamin D status, with frailty in later life. We reviewed cross-sectional or longitudinal studies evaluating populations of older adults and identifying frailty by a currently validated scale. Meta-analyses were restricted to cross-sectional data from studies using Fried’s phenotype to identify frailty. Twenty-six studies were considered in the qualitative synthesis, and thirteen studies were included in the meta-analyses. Quantitative analyses showed significant differences in the comparisons of frail (standardized mean difference (SMD)—1.31, 95% confidence interval (CI) (−2.47, −0.15), p = 0.0271) and pre-frail (SMD—0.79, 95% CI (−1.58, −0.003), p = 0.0491) subjects vs. non-frail subjects. Sensitivity analyses reduced heterogeneity, resulting in a smaller but still highly significant between-groups difference. Results obtained indicate that lower 25(OH)D levels are significantly associated with increasing frailty severity. Future challenges include interventional studies testing the possible benefits of vitamin D supplementation in older adults to prevent/palliate frailty and its associated outcomes.

scholarly journals Does chronic hyperglycaemia increase the risk of kidney stone disease? results from a systematic review and meta-analysis

BMJ Open ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. e032094 ◽  
Author(s):  
Robert Geraghty ◽  
Abdihakim Abdi ◽  
Bhaskar Somani ◽  
Paul Cook ◽  
Paul Roderick
Keyword(s):  
Systematic Review ◽  
Kidney Stone ◽  
Observational Studies ◽  
Meta Analysis ◽  
Case Control ◽  
Stone Disease ◽  
Cochrane Library ◽  
Cross Sectional ◽  
Kidney Stone Disease ◽  
Chronic Hyperglycaemia

DesignSystematic review and meta-analysis of observational studies was performed using Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines for studies reporting on diabetes mellitus (DM) or metabolic syndrome (MetS) and kidney stone disease (KSD).ObjectiveTo examine the association between chronic hyperglycaemia, in the form of DM and impaired glucose tolerance (IGT) in the context of MetS and KSD.SettingPopulation-based observational studies. Databases searched: Ovid MEDLINE without revisions (1996 to June 2018), Cochrane Library (2018), CINAHL (1990 to June 2018), ClinicalTrials.gov, Google Scholar and individual journals including the Journal of Urology, European Urology and Kidney International.ParticipantsPatients with and without chronic hyperglycaemic states (DM and MetS).Main outcome measuresEnglish language articles from January 2001 to June 2018 reporting on observational studies. Exclusions: No comparator group or fewer than 100 patients. Unadjusted values were used for meta-analysis, with further meta-regression presented as adjusted values. Bias was assessed using Newcastle-Ottawa scale.Results2340 articles were screened with 13 studies included for meta-analysis, 7 DM (three cohort) and 6 MetS. Five of the MetS studies provided data on IGT alone. These included: DM, n=28 329; MetS, n=31 767; IGT, n=12 770. Controls: DM, n=5 89 791; MetS, n=1 78 050; IGT, n=2 93 852 patients. Adjusted risk for DM cohort studies, RR=1.23 (0.94 to 1.51) (p<0.001). Adjusted ORs for: DM cross-sectional/case-control studies, OR=1.32 (1.21 to 1.43) (p<0.001); IGT, OR=1.26 (0.92 to 1.58) (p<0.0001) and MetS, OR=1.35 (1.16 to 1.54) (p<0.0001). There was no significant difference between IGT and DM (cross-sectional/case-control), nor IGT and MetS. There was a moderate risk of publication bias. Statistical heterogeneity remained significant in adjusted DM cohort values and adjusted IGT (cross-sectional/case-control), but non-signficant for adjusted DM (cross-sectional/case-control).ConclusionChronic hyperglycaemia increases the risk of developing kidney stone disease. In the context of the diabetes pandemic, this will increase the burden of stone related morbidity and mortality.PROSPERO registration numberCRD42018093382

scholarly journals Prevalence of functional dyspepsia in medical students: protocol for a systematic review and meta-analysis

2020 ◽  
Author(s):  
Giulior A. Marrull Caldas ◽  
Nicolas Silva Farfán ◽  
Andres Penny Sauca ◽  
Steffi N. Roca Ortega ◽  
Jessica Hanae Zafra-Tanaka
Keyword(s):  
Systematic Review ◽  
Medical Students ◽  
Functional Dyspepsia ◽  
Observational Studies ◽  
Meta Analysis ◽  
Gastrointestinal Diseases ◽  
Cross Sectional ◽  
Search Terms ◽  
Review Question ◽  
Medical Career

AbstractBackgroundDyspepsia is defined as a syndrome that comprises a series of chronic and recurrent disorders in the upper digestive tract. According to a meta-analysis carried out in 2014, the worldwide prevalence of dyspepsia is 20.8%, being the highest prevalence found in South America with 37.7%. It was found that there are populations that present a higher prevalence of dyspepsia that is associated with high levels of stress, such as those that can be found in medical students, so It would be important to evaluate the population of medical students, since the medical career, by its nature, represents a great academic load on the student who may later suffer from gastrointestinal diseases.Review questionWhat is the prevalence of functional dyspepsia in medical students?ObjectiveTo determine the prevalence of dyspepsia in medical students and to assess genre differencesMethodsWe will conduct a systematic review and meta-analysis. We will use the following search engines: PubMed, Global Index Medicus and EMBASE using search terms related to functional dyspepsia and medical students. We will include observational studies (either cross-sectional or cohort studies) that assessed the prevalence of functional dyspepsia among this particular population.ConclusionCurrently, no systematic review or meta-analysis has been conducted about the prevalence of functional dyspepsia among this population of students. The aim of this work is to summarize the available literature regarding this topic.

scholarly journals Association Between Asthma and Migraine: A Systematic Review and Meta-Analysis of Observational Studies

2021 ◽  
Vol 2 ◽  
Author(s):  
Lin-Lin Kang ◽  
Pei-En Chen ◽  
Tao-Hsin Tung ◽  
Ching-Wen Chien
Keyword(s):  
Systematic Review ◽  
Cohort Studies ◽  
Observational Studies ◽  
Data Extraction ◽  
Meta Analysis ◽  
Cochrane Library ◽  
Cross Sectional ◽  
Newcastle Ottawa Scale ◽  
The Cochrane Library ◽  
The Relationship

Objectives: The purpose of this study was to determine the association between asthma and migraine and assess the risk for migraine in patients with asthma.Methods: We systematically searched the Cochrane Library, PubMed, Medical Literature Analysis and Retrieval System Online (MEDLINE), and Excerpta Medica dataBASE (EMBASE) databases from inception to September 26, 2021, for indexed observational studies that examined either the odds or risk of migraine in subjects with asthma. The qualities of the included studies were evaluated using the Newcastle–Ottawa Scale. A random-effects meta-analysis was performed to calculate the odds ratio for case-control and cross-sectional studies and the risk ratio for cohort studies.Results: Seven observational studies (four cross-sectional and three cohort studies) with a total of 549,534 study subjects were included in this systematic review and meta-analysis and selected for data extraction. Four articles were considered to be of moderate quality; other studies were considered to be of high quality. Asthma was associated with increased odds (OR, 1.85; 95%CI, 1.39–2.45) and risk of migraine (RR, 1.70; 95%CI, 1.52–1.90).Conclusions: The available evidence that supports the existence of an association between asthma and migraine is limited. Clinicians should be aware that patients with asthma show both increased prevalence and incidence of migraine. Further studies are warranted to further clarify the relationship between asthma and migraine.Systematic Review Registration:https://www.crd.york.ac.uk/PROSPERO/display_record.php?RecordID=185881, identifier: CRD42020185881.

The association between dietary inflammatory index and risk of central obesity in adults: An updated systematic review and meta-analysis

2020 ◽  
Vol 90 (5-6) ◽  
pp. 535-552 ◽  
Author(s):  
Mahdieh Abbasalizad Farhangi ◽  
Mahdi Vajdi
Keyword(s):  
Systematic Review ◽  
Observational Studies ◽  
Central Obesity ◽  
Assessment Tool ◽  
Weighted Mean Difference ◽  
Meta Analysis ◽  
Dietary Factors ◽  
Cross Sectional ◽  
Inflammatory Status ◽  
Obesity Indices

Abstract. Backgrounds: Central obesity, as a pivotal component of metabolic syndrome is associated with numerous co-morbidities. Dietary factors influence central obesity by increased inflammatory status. However, recent studies didn’t evaluate the association between central obesity and dietary inflammation index (DII®) that give score to dietary factors according to their inflammatory potential. In the current systematic review and meta-analysis, we summarized the studies that investigated the association between DII® with central obesity indices in the general populations. Methods: In a systematic search from PubMed, SCOPUS, Web of Sciences and Cochrane electronic databases, we collected relevant studies written in English and published until 30 October 2019. The population of included studies were apparently healthy subjects or individuals with obesity or obesity-related diseases. Observational studies that evaluated the association between DII® and indices of central obesity including WC or WHR were included. Results: Totally thirty-two studies were included; thirty studies were cross-sectional and two were cohort studies with 103071 participants. Meta-analysis of observational studies showed that higher DII® scores were associated with 1.81 cm increase in WC (Pooled weighted mean difference (WMD) = 1.813; CI: 0.785–2.841; p = 0.001). Also, a non-significant increase in the odds of having higher WC (OR = 1.162; CI: 0.95–1.43; p = 0.154) in the highest DII category was also observed. In subgroup analysis, the continent, dietary assessment tool and gender were the heterogeneity sources. Conclusion: The findings proposed that adherence to diets with high DII® scores was associated with increased WC. Further studies with interventional designs are necessary to elucidate the causality inference between DII® and central obesity indices.

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