Systematic reviews
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The growing number of medical literature and textual data in online repositories led to an exponential increase in the workload of researchers involved in citation screening for systematic reviews. This work aims to combine machine learning techniques and data preprocessing for class imbalance to identify the outperforming strategy to screen articles in PubMed for inclusion in systematic reviews. ⋯ Resampling techniques slightly improved the performance of the investigated machine learning techniques. From a computational perspective, random undersampling 35:65 may be preferred.
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Physical inactivity is the fourth leading risk factor for global mortality. Reducing sedentary behaviour and increasing physical activity are efficacious for improving many physical and mental health conditions including cardiovascular disease, type 2 diabetes and depression. Reducing sedentary behaviour and increasing physical activity can also be effective at reducing obesity; however, sedentary behaviour and reduced physical activity are also associated with mortality independently. Despite this, most adults in the UK do not currently meet the UK Chief Medical Officers' guidelines for weekly physical activity. As most adults visit their general practitioner at least once a year, the primary care consultation provides a unique opportunity to deliver exercise referral or physical activity promotion interventions. This is a protocol for a systematic review of randomised controlled trials for the effectiveness of physical activity promotion and referral in primary care. ⋯ The protocol is registered with PROSPERO the international prospective register of systematic reviews, ID CRD42019130831.
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Chinese herbal medicines (CHMs) are the major interventions of traditional Chinese medicine (TCM), which are typically administered as either single herbs or formulas. The Cochrane systematic reviews (SRs) of CHMs are essential references for evaluating the efficacy and safety of CHMs interventions; they are expected to be accurate and reliable. This study aimed to assess the reporting quality of these SRs, particularly whether necessary information related to CHM was adequately reported. ⋯ Although the Cochrane SRs of CHM showed reporting compliance with PRISMA checklist, their reporting quality needs improvement, especially about full reporting of CHM interventions and of TCM-related rationales. Reporting guideline of "PRISMA extension for CHM interventions" should be developed thus to improve their quality.
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The present protocol was designed for a systematic review and meta-analysis aimed at determining the association of telomere length with substance use disorders with the exclusion of nicotine addiction, and to identify potential moderators of the effect of telomere length. Such methodological information may provide guidance to improve the quality of future research on this important topic. ⋯ PROSPERO registration number CRD42019119785.