scholarly journals Relative Efficacy of Dry-Off Antimicrobial Treatments in Dairy Cattle to Cure Existing Intramammary Infections: A Systematic Review and Network Meta-Analysis

2021 ◽  
Vol 2 ◽  
Author(s):  
Carrie K. McMullen ◽  
Jan M. Sargeant ◽  
David F. Kelton ◽  
Annette M. O'Connor ◽  
Cassandra N. Reedman ◽  
...  
Keyword(s):  
United States ◽  
Systematic Review ◽  
Dairy Cattle ◽  
Meta Analysis ◽  
The United States ◽  
Antimicrobial Treatment ◽  
Risk Of Bias ◽  
Relative Efficacy ◽  
Intramammary Infections ◽  
Animal Trials

This systematic review and network meta-analysis aimed to estimate the relative efficacy of dry cow antimicrobial therapies, registered in Canada and/or the United States, to cure existing intramammary infections (IMI) in dairy cattle. The controlled trials examining all-cause cures of existing IMI present at dry-off were eligible. Five databases and four conference proceeding platforms were searched. The risk of bias at the level of the outcome was assessed using the Cochrane 2.0 risk of bias instrument (Cochrane, Denmark), and the overall confidence in the findings from the network meta-analysis was assessed using the Confidence in Network Meta-Analysis (CINeMA) platform. Of 3,743 articles screened for eligibility by the two independent reviewers, 58 trials were included in the Bayesian network meta-analysis for the all-cause cure of existing IMI from dry-off to calving. No antimicrobial treatment (non-active control) was associated with a decreased risk of a cure compared with all other currently labeled antimicrobials in Canada and the United States; however, lack of replication trials for some antimicrobial products created large credibility intervals and, therefore, we were unable to identify meaningful comparisons between the products. Poor reporting of trial features, heterogeneity in outcome measurements, and high risk of bias in some domains further contributed to this inability to compare antimicrobials. Continued improvement in the reporting of animal trials is required to make recommendations for antimicrobial products on the basis of efficacy.Systematic Review Registration:https://atrium.lib.uoguelph.ca/xmlui/bitstream/handle/10214/16236/Protocol_NMA_efficacy_dryoff_antibiotics_cure_IMI.pdf?sequence=3&isAllowed=y.

scholarly journals Prevalence of Financial Fraud and Scams Among Older Adults in the United States: A Systematic Review and Meta-Analysis

2017 ◽  
Vol 107 (8) ◽  
pp. e13-e21 ◽  
Author(s):  
David Burnes ◽  
Charles R. Henderson ◽  
Christine Sheppard ◽  
Rebecca Zhao ◽  
Karl Pillemer ◽  
...  
Keyword(s):  
United States ◽  
Systematic Review ◽  
Older Adults ◽  
Meta Analysis ◽  
The United States ◽  
Financial Fraud

scholarly journals Discontinuity of Cardiac Follow‐Up in Young People With Congenital Heart Disease Transitioning to Adulthood: A Systematic Review and Meta‐Analysis

2021 ◽  
Author(s):  
Philip Moons ◽  
Sandra Skogby ◽  
Ewa‐Lena Bratt ◽  
Liesl Zühlke ◽  
Ariane Marelli ◽  
...  
Keyword(s):  
United States ◽  
Systematic Review ◽  
Congenital Heart Disease ◽  
Heart Disease ◽  
Congenital Heart ◽  
Heart Defects ◽  
Meta Analysis ◽  
Transition Programs ◽  
The United States

Background The majority of people born with congenital heart disease require lifelong cardiac follow‐up. However, discontinuity of care is a recognized problem and appears to increase around the transition to adulthood. We performed a systematic review and meta‐analysis to estimate the proportion of adolescents and emerging adults with congenital heart disease discontinuing cardiac follow‐up. In pooled data, we investigated regional differences, disparities by disease complexity, and the impact of transition programs on the discontinuity of care. Methods and Results Searches were performed in PubMed, Embase, Cinahl, and Web of Science. We identified 17 studies, which enrolled 6847 patients. A random effects meta‐analysis of single proportions was performed according to the DerSimonian‐Laird method. Moderator effects were computed to explore sources for heterogeneity. Discontinuity proportions ranged from 3.6% to 62.7%, with a pooled estimated proportion of 26.1% (95% CI, 19.2%–34.6%). A trend toward more discontinuity was observed in simple heart defects (33.7%; 95% CI, 15.6%–58.3%), compared with moderate (25.7%; 95% CI, 15.2%–40.1%) or complex congenital heart disease (22.3%; 95% CI, 16.5%–29.4%) ( P =0.2372). Studies from the United States (34.0%; 95% CI, 24.3%–45.4%), Canada (25.7%; 95% CI, 17.0%–36.7%), and Europe (6.5%; 95% CI, 5.3%–7.9%) differed significantly ( P =0.0004). Transition programs were shown to have the potential to reduce discontinuity of care (12.7%; 95% CI, 2.8%–42.3%) compared with usual care (36.2%; 95% CI, 22.8%–52.2%) ( P =0.1119). Conclusions This meta‐analysis showed that there is a high proportion of discontinuity of care in young people with congenital heart disease. The highest discontinuity proportions were observed in studies from the United States and in patients with simple heart defects. It is suggested that transition programs have a protective effect. Registration URL: www.crd.york.ac.uk/prospero . Unique identifier: CRD42020182413.

scholarly journals Comparative efficacy of teat sealants given prepartum for prevention of intramammary infections and clinical mastitis: a systematic review and network meta-analysis

2019 ◽  
Vol 20 (2) ◽  
pp. 182-198 ◽  
Author(s):  
C. B. Winder ◽  
J. M. Sargeant ◽  
D. Hu ◽  
C. Wang ◽  
D. F. Kelton ◽  
...  
Keyword(s):  
Systematic Review ◽  
Meta Analysis ◽  
Clinical Mastitis ◽  
Risk Of Bias ◽  
Comparative Efficacy ◽  
Primary Research ◽  
Quality Of Reporting ◽  
Intramammary Infections ◽  
Bismuth Subnitrate

AbstractA systematic review and network meta-analysis were conducted to assess the relative efficacy of internal or external teat sealants given at dry-off in dairy cattle. Controlled trials were eligible if they assessed the use of internal or external teat sealants, with or without concurrent antimicrobial therapy, compared to no treatment or an alternative treatment, and measured one or more of the following outcomes: incidence of intramammary infection (IMI) at calving, IMI during the first 30 days in milk (DIM), or clinical mastitis during the first 30 DIM. Risk of bias was based on the Cochrane Risk of Bias 2.0 tool with modified signaling questions. From 2280 initially identified records, 32 trials had data extracted for one or more outcomes. Network meta-analysis was conducted for IMI at calving. Use of an internal teat sealant (bismuth subnitrate) significantly reduced the risk of new IMI at calving compared to non-treated controls (RR = 0.36, 95% CI 0.25–0.72). For comparisons between antimicrobial and teat sealant groups, concerns regarding precision were seen. Synthesis of the primary research identified important challenges related to the comparability of outcomes, replication and connection of interventions, and quality of reporting of study conduct.

scholarly journals 1629. Herpes Zoster Risk in Immunocompromised Adults in the United States: A Systematic Review

2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S594-S595
Author(s):  
Kathleen L Dooling ◽  
Angela Guo ◽  
Steven A Pergam ◽  
Susannah McKay
Keyword(s):  
United States ◽  
Systematic Review ◽  
Herpes Zoster ◽  
Solid Tumor ◽  
Cumulative Incidence ◽  
Medical Condition ◽  
The United States ◽  
Risk Of Bias ◽  
Solid Organ ◽  
Antiviral Prophylaxis

Abstract Background The two known primary risk factors for herpes zoster (HZ) are age and immunodeficiency yet estimates of HZ risk by immunocompromising medical condition have not been well characterized. We undertook a systematic review of the literature to estimate HZ risk in six categories of immunocompromised patients. Methods We conducted a systematic review of evidence for HZ in patients with hematopoietic cell transplants (HCT), cancer (blood and solid tumor), HIV, and solid-organ transplant (SOT; kidney and other). We identified studies in Pubmed, Embase, Cochrane, Scopus and clinicaltrials.gov using the following outcome search terms: Herpes Zoster, Shingles, VZV, chickenpox, Varicella-zoster virus, or opportunistic infection. We included articles that presented original data from studies in the United States on risk of HZ in adults and were published after 1992 (1996 for HIV). Case reports and conference abstracts were excluded. We assessed risk of bias with Cochrane (clinical trials) or GRADE (observational) methods and categorized studies as high, medium, or low risk. Results We identified and screened 3,765 records; 57 articles were abstracted and 34 deemed low or moderate risk of bias (Figure 1). All articles reported at least one estimate of HZ cumulative incidence, which ranged from 0% to 41%. Thirteen studies estimated HZ incidence, which varied widely within and between immunocompromised populations (Figure 2). The highest estimates were seen in HCT (median = 52 HZ cases/1000 patient-years), followed by blood cancers and SOT, and then solid tumor cancers and HIV (median = 13 HZ cases/1,000 patient-years). Among 17 studies of HCT patients, longer follow-up time and absent or <1 year of post-transplant antiviral prophylaxis were associated with higher HZ cumulative incidence (Figure 3). Conclusion HZ is common among all immunocompromised populations studied—exceeding expected HZ incidence in immunocompetent middle-age adults. Antiviral prophylaxis among HCT patients has an ameliorating effect but long-term HZ risk following discontinuation is unclear. Better evidence for incidence and severity of HZ in immunocompromised populations is needed to inform economic and HZ vaccine policy analyses. Disclosures All authors: No reported disclosures.

Racial Disparities in Screening Mammography in the United States: A Systematic Review and Meta-analysis

2017 ◽  
Vol 14 (2) ◽  
pp. 157-165.e9 ◽  
Author(s):  
Ahmed T. Ahmed ◽  
Brian T. Welch ◽  
Waleed Brinjikji ◽  
Wigdan H. Farah ◽  
Tara L. Henrichsen ◽  
...  
Keyword(s):  
United States ◽  
Systematic Review ◽  
Racial Disparities ◽  
Meta Analysis ◽  
The United States ◽  
Screening Mammography
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