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Relationships between the journal download immediacy index (DII) and some citation indicators are studied. The Chinese full-text database CNKI is used for data collection. Results suggest that the DII can be considered as an independent indicator, but that it also has predictive value for other indicators, such as a journal’s h-index. In case a journal cannot yet have an impact factor—because its citation history within the database is too short—the DII can be used for a preliminary evaluation. The article provides results related to the CNKI database as a whole and additionally, some detailed information about agricultural and forestry journals.

Objective To evaluate the impact of non-blinded outcome assessment on estimated treatment effects in randomised clinical trials with binary outcomes.Design Systematic review of trials with both blinded and non-blinded assessment of the same binary outcome. For each trial we calculated the ratio of the odds ratios—the odds ratio from non-blinded assessments relative to the corresponding odds ratio from blinded assessments. A ratio of odds ratios <1 indicated that non-blinded assessors generated more optimistic effect estimates than blinded assessors. We pooled the individual ratios of odds ratios with inverse variance random effects meta-analysis and explored reasons for variation in ratios of odds ratios with meta-regression. We also analysed rates of agreement between blinded and non-blinded assessors and calculated the number of patients needed to be reclassified to neutralise any bias.Data Sources PubMed, Embase, PsycINFO, CINAHL, Cochrane Central Register of Controlled Trials, HighWire Press, and Google Scholar.Eligibility criteria for selecting studies Randomised clinical trials with blinded and non-blinded assessment of the same binary outcome.Results We included 21 trials in the main analysis (with 4391 patients); eight trials provided individual patient data. Outcomes in most trials were subjective—for example, qualitative assessment of the patient’s function. The ratio of the odds ratios ranged from 0.02 to 14.4. The pooled ratio of odds ratios was 0.64 (95% confidence interval 0.43 to 0.96), indicating an average exaggeration of the non-blinded odds ratio by 36%. We found no significant association between low ratios of odds ratios and scores for outcome subjectivity (P=0.27); non-blinded assessor’s overall involvement in the trial (P=0.60); or outcome vulnerability to non-blinded patients (P=0.52). Blinded and non-blinded assessors agreed in a median of 78% of assessments (interquartile range 64-90%) in the 12 trials with available data. The exaggeration of treatment effects associated with non-blinded assessors was induced by the misclassification of a median of 3% of the assessed patients per trial (1-7%).Conclusions On average, non-blinded assessors of subjective binary outcomes generated substantially biased effect estimates in randomised clinical trials, exaggerating odds ratios by 36%. This bias was compatible with a high rate of agreement between blinded and non-blinded outcome assessors and driven by the misclassification of few patients.

Abstract Background Chronic pain (CP) patients tend to represent aberrant functional brain activity. Acupuncture is an effective clinical treatment for CP, and some fMRI studies were conducted to discover the alternation of brain regions after acupuncture therapy for CP. However, the heterogeneity of neuroimaging studies has prevented researchers from systematically generalizing the central mechanisms of acupuncture in the treatment of CP. Methods We searched bibliographic databases, including PubMed, EMBASE, PsycINFO, Web of Science Core Collection, ScienceDirect, China Academic Journal Network Publishing Database, etc., and trials registration platforms (From inception to September 1st, 2022). Two independent researchers assessed the study’s bias and quality. Furthermore, activation likelihood estimation (ALE) analysis was applied to explore aberrant brain functional activity and acupuncture's central mechanism for CP. Results Totally 15 studies with 553 CP patients were included in the study. ALE analysis showed that CP patients presented with decreased ALFF/ReHo in the precuneus, posterior cingulate cortex, cingulate gyrus, superior frontal gyrus, left medial frontal gyrus including medial prefrontal gurus, left middle frontal gyrus. Conclusion This ALE meta-analysis pointed out that acupuncture could modulate the default mode network, the pain processing network to treat CP. This provided a systematic summary of the central biomarker of acupuncture for the treatment of CP. Registration This meta-analysis has been registered in the PROSPERO (CRD42021239633). Keywords Chronic pain; Acupuncture; Activation likelihood estimation; fMRI

Background In recent years, submucosal tunneling endoscopic resection (STER) has emerged as a novel therapeutic endoscopic technique for upper gastrointestinal submucosal tumors (SMTs). The aim of this study was to evaluate the safety and efficacy of STER for upper gastrointestinal SMTs. Methods A systematic search of both English and Chinese databases was performed until November 15, 2015. Complete resection and en bloc resection rates were considered the primary outcome measures. Prevalence of complications was considered the secondary outcome measure. A random-effects model was used to generate conservative estimates of the prevalence of the main outcome variables. All data analyses were performed using Meta-Analyst software (version beta 3.13). Results A total of 28 studies were included in the final meta-analysis. The pooled complete resection and en bloc resection rates were 97.5 % (95 % CI 96.0–98.5 %) and 94.6 % (95 % CI 91.5–96.7 %), respectively. The common complications associated with STER were air leakage symptoms and perforation. The pooled prevalence of air leakage symptoms was 14.8 % (95 % CI 10.5–20.5 %) for subcutaneous emphysema and pneumomediastinum, 6.1 % (95 % CI 4.0–9.0 %) for pneumothorax and 6.8 % (95 % CI 4.7–9.6 %) for pneumoperitoneum. Additionally, the pooled prevalence of perforation was 5.6 % (95 % CI 3.7–8.2 %). Only a few cases of bleeding were reported in two studies. Conclusions STER is a highly feasible and safe treatment option for upper gastrointestinal SMTs.

To compare the effectiveness of two search methods in identifying studies that used the Control Preferences Scale (CPS), a health care decision-making instrument commonly used in clinical settings. We searched the literature using two methods: (1) keyword searching using variations of “Control Preferences Scale” and (2) cited reference searching using two seminal CPS publications. We searched three bibliographic databases [PubMed, Scopus, and Web of Science (WOS)] and one full-text database (Google Scholar). We report precision and sensitivity as measures of effectiveness. Keyword searches in bibliographic databases yielded high average precision (90%) but low average sensitivity (16%). PubMed was the most precise, followed closely by Scopus and WOS. The Google Scholar keyword search had low precision (54%) but provided the highest sensitivity (70%). Cited reference searches in all databases yielded moderate sensitivity (45–54%), but precision ranged from 35% to 75% with Scopus being the most precise. Cited reference searches were more sensitive than keyword searches, making it a more comprehensive strategy to identify all studies that use a particular instrument. Keyword searches provide a quick way of finding some but not all relevant articles. Goals, time, and resources should dictate the combination of which methods and databases are used.

To evaluate the usefulness of a full-text database as a source for assessing obliteration by incorporation (OBI), 3,707 article records including the catchphrases “bounded rationality” and/or “boundedly rational” (connected with the work of H. A. Simon) in the article text were retrieved from JSTOR, a full-text database with broad disciplinary coverage. Two subsets were analyzed—a 10 % systematic sample of all records and a set of all articles in Economics journals (with the addition of the Journal of Economic Theory). A majority of articles in the 10 % sample came from Economics and Management journals, while Psychology was poorly represented. In the 10 % sample, based on the percentage of true implicit citations between 1992 and 2009 in the 80 % of records that had a catchphrase in the body of the article, rather than just in the reference list, annual OBI ranged from 0 to 70 % (mean 33 %) with no discernible trend. The Economics articles showed a narrower range of OBI—fluctuating around 40 % implicit citations over the same time period. In both data sets, a large proportion of indirect citations were to sources that themselves cited a relevant work by Simon. Over 90 % of the articles in both the 10 % sample and the economics journal set would not have been retrieved with a database record search because they lacked the catchphrase in the record fields.

Data accuracy is essential for reliable and valid altmetrics analysis. Although Twitter and Facebook altmetrics data are widely used for scholarly communication and scientific evaluation, few studies have tapped into their accuracy issue. Based on content analysis of random sample records over two phases, this study has investigated and compared the accuracy of Twitter and Facebook altmetrics data. Major conclusions are drawn as follows. (1) Three error types were identified from the altmetric data provider and six error types were identified from the altmetric data aggregator. Twitter and Facebook have shared most of the error types except for minor differences in the sub-categories. (2) The overall error rate is substantially high, being 17% and 32% for Twitter and Facebook respectively in April, 2019. However, except for publication date error and posting date error, the percentage of the other error types is relatively low (being around 3%). (3) The percentage of error types related to the dynamic nature of Twitter and Facebook is increasing over time, while percentage of error types concerning the bibliographic data is decreasing over time. (4) The error types are either “high seriousness low percentage” or “low seriousness high percentage”, therefore, they would probably not bring significant negative influence. (5) Underlying reasons of these error types are various. They could be attributable to the Twitter (or Facebook) user, Twitter (or Facebook) platform, altmetric database, as well as the third-party data provider. These results suggest that Twitter and Facebook altmetrics data in the Altmetric database are reliable on the whole, although there is still space for further improvement.

Background This review of studies on urinary incontinence (UI) was focused primarily on UI prevalence rates and associated factors across the adult lifecourse of Chinese women. UI is a urologic symptom that can have a significant impact on women's physical and mental health and quality of life. In addition, women with UI may experience socioeconomic burdens due to UI’s effect on their ability to work and function in society. Although researchers from many countries have reported prevalence rates and associated factors for UI, little is known about the prevalence of UI in China’s large female population. Language may act as a barrier to the inclusion of published studies in English-language journals. To overcome this barrier and to add to the global knowledge base about UI in women, the authors reviewed and discussed findings from epidemiological studies published in China and in Chinese language. Methods The authors retrieved research studies from the Wanfang database using the following search terms: \"Subject: (Female) × Subject: (Urinary incontinence) × Subject: (Prevalence) × Date: 2013 to 2019\". Searches employed the China National Knowledge Infrastructure Database, VIP Database for Chinese Technical Periodicals and China Biology Medicine Database. The authors also used PubMed to search English-language studies published in Chinese journals on UI in Chinese women. Results This literature review includes 48 articles published between January 2013 and December 2019. The overall UI prevalence rates reported in adult Chinese women ranged from 8.7 to 69.8%, representing 43–349 million women, respectively. For women aged 17–40 years, 41–59 years, and 60 years and older, prevalence rates ranged from 2.6–30.0, 8.7–47.7, to 16.9–61.6%, respectively. Significant associated factors for overall UI included age, body mass index, constipation, parity, and menopause. Despite the 17–40 age range being peak reproductive years, the literature revealed little focus on UI prevalence rates. For women aged 41–59 years, the main associated factors included those related to pregnancy and gynecologic diseases. For women 60 years and older, chronic diseases represented most of the associated factors. Conclusions About 43–349 million Chinese women may experience UI. Many of the identified associated factors could be mitigated to reduce UI incidence and prevalence rates. Little is known about the prevalence rates and associated factors for UI among young (aged 17–40) Chinese women. Future research should investigate UI in young women to improve bladder health across their lifecourse.

Background: DL -3-n-butylphthalide (NBP) is widely used as a neuroprotective drug in stroke patients in China. A systematic review in 2010 suggested NBP to be safe and effective at promoting neurological recovery, but could not conclude whether it decreased risk of long-term death or disability. Since numerous randomized controlled trials (RCTs) have been conducted on NBP since 2010, we performed an updated systematic review and meta-analysis of safety and efficacy data. Method: We searched electronic databases and reference lists to identify RCTs that compared patients who received NBP or not (including placebo). Methodological quality of RCTs was assessed using the Revised Cochrane Risk of Bias Tool 2.0, and data were meta-analyzed using Review Manager 5.4 software. Results: Fifty-seven RCTs involving 8,747 participants were included. Twenty trials examined NBP as a capsule, 29 as an injection, and 8 as sequential injection-capsule therapy. Meta-analyses showed that NBP treatment was associated with a reduction in composite outcome of death and dependency (risk ratio 0.59, 95% CI 0.42 to 0.83; 260 participants; 2 studies), death (risk ratio 0.32, 95% CI 0.13 to 0.75; 2,287 participants; 10 studies), modified Rankin Scale score (mean difference -0.80, 95% CI -0.88 to -0.72; 568 participants; 4 studies), and an increase in Barthel Index, which assesses the ability to engage in basic activities of daily living (mean difference 11.08, 95% CI 9.10 to 13.05; 2,968 participants; 22 studies). Meta-analyses found that NBP significantly reduced neurological deficit based on National Institute of Health Stroke Scale (mean difference -3.39, 95% CI -3.76 to -3.03; 7.283 participants; 46 studies) and Chinese Stroke Scale (mean difference -4.16, 95% CI -7.60 to -0.73; 543 participants; 4 studies). Of the adverse events reported in 31 trials, elevated transaminase (incidence, 1.39-17.53%), rash (0-1.96%) and gastrointestinal discomfort (1.09-6.15%) were most frequent and no serious adverse events were reported. Conclusion: This update review confirms that NBP can help acute ischemic stroke patients regain the ability to perform activities of daily living, reduce their neurological deficit and short-term death rates. However, the available evidence on whether NBP reduces risk of long-term death or dependence after ischemic stroke remains insufficient.

Objective To systematically evaluate the efficacy of culture and nonculture autologous melanocyte transplantation and other methods for stable vitiligo. Methods PubMed, Embase, WebofScience, TheCochraneLibrary, Chinese Journal Full-text Database (CNKI), VIP Chinese Scientific Journal Full-text Database (VIP), Wanfang database, were included in the clinical study of autologous cell transplantation for the treatment of stable vitiligo. For the meta-analysis of the corresponding studies with Revman5.3 software. Results 17 high-quality studies were included in this meta-analysis, totaling 1199 patients, Meta-analysis showed that there was no significant difference in the efficacy of autologous cultured melanocytes transplantation (CMT) and melanocytes + keratinocytes, CMT and autologous nonculture suspension transplantation (NCES) in stable vitiligo (P > 0.05); There was a significant difference between CMT and CMT + phototherapy in stable vitiligo (P < 0.00001); There was no significant difference in the efficacy of NCES and NCES + other components, NCES and NCES + other therapies, and NCES and NCES + phototherapy for stable vitiligo (P > 0.05); There was a significant difference in the efficacy of cell transplantation and cell transplantation and cell transplantation + other therapy, cell transplantation and cell transplantation + phototherapy,cell transplantation and cell transplantation + narrow spectrum ultraviolet (NBUVB) in stable vitiligo (P < 0.00001). Conclusion Both NCES and CMT transplantation treated stable vitiligo and had no direct relationship with the components contained in the suspension. Melanocyte transplantation and melanocyte transplantation combined with other treatment methods is better than single melanocyte transplantation for vitiligo. Due to the number and quality of included studies, the above conclusions need to be confirmed by more reasonably designed randomized controlled clinical studies.