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A considerable proportion of quantitative research remains unpublished once completed. Little research has documented non-dissemination and dissemination bias in qualitative research. This study aimed to generate evidence on the extent of non-dissemination in qualitative research. We followed a cohort of qualitative studies presented as conference abstracts to ascertain their subsequent publication status. We searched for subsequent full publication in MEDLINE, in the Cumulative Index to Nursing & Allied Health Literature and in Google Scholar. We matched abstracts to subsequent publications according to authors, method of data collection and phenomenon of interest. Fisher's exact test was calculated to examine associations between study characteristics and publication. Factors potentially associated with time to publication were evaluated with Cox regression analysis. For 91 of 270 included abstracts (33.70%; 95% CI 28.09%-39.68%), no full publication was identified. Factors that were found to be associated with subsequent full publication were oral presentation (OR 4.62; 95% CI 2.43-8.94) and university affiliation (OR 1.96; 95% CI 1.05-3.66). Compared to oral presentations, studies presented as posters took longer time to reach full publication (hazard ratio 0.35, 95% CI 0.21-0.58). This study shows that it was not possible to retrieve a full publication for over one-third of abstracts. Our findings suggest that where this non-dissemination is systematic, it may lead to distortions of the qualitative evidence-base for decision-making through dissemination bias. Our findings are congruent with those of other studies. Further research might investigate non-dissemination of qualitative studies in other disciplines to consolidate our findings.

The impact of combined heat and drought stress was investigated in Arabidopsis thaliana and compared to individual stresses to reveal additive effects and interactions. A combination of plant metabolomics and root and rhizosphere bacterial metabarcoding were used to unravel effects at the plant holobiont level. Hierarchical cluster analysis of metabolomics signatures pointed out two main clusters, one including heat and combined heat and drought, and the second cluster that included the control and drought treatments. Overall, phenylpropanoids and nitrogen-containing compounds, hormones and amino acids showed the highest discriminant potential. A decrease in alpha-diversity of Bacteria was observed upon stress, with stress-dependent differences in bacterial microbiota composition. The shift in beta-diversity highlighted the pivotal enrichment of Proteobacteria , including Rhizobiales , Enterobacteriales and Azospirillales. The results corroborate the concept of stress interaction, where the combined heat and drought stress is not the mere combination of the single stresses. Intriguingly, multi-omics interpretations evidenced a good correlation between root metabolomics and root bacterial microbiota, indicating an orchestrated modulation of the whole holobiont. [ABSTRACT FROM AUTHOR]

The aim of this study was to provide guidance to improve the completeness and clarity of meta-ethnography reporting. Evidence-based policy and practice require robust evidence syntheses which can further understanding of people's experiences and associated social processes. Meta-ethnography is a rigorous seven-phase qualitative evidence synthesis methodology, developed by Noblit and Hare. Meta-ethnography is used widely in health research, but reporting is often poor quality and this discourages trust in and use of its findings. Meta-ethnography reporting guidance is needed to improve reporting quality. The eMERGe study used a rigorous mixed-methods design and evidence-based methods to develop the novel reporting guidance and explanatory notes. The study, conducted from 2015 to 2017, comprised of: (1) a methodological systematic review of guidance for meta-ethnography conduct and reporting; (2) a review and audit of published meta-ethnographies to identify good practice principles; (3) international, multidisciplinary consensus-building processes to agree guidance content; (4) innovative development of the guidance and explanatory notes. Recommendations and good practice for all seven phases of meta-ethnography conduct and reporting were newly identified leading to 19 reporting criteria and accompanying detailed guidance. The bespoke eMERGe Reporting Guidance, which incorporates new methodological developments and advances the methodology, can help researchers to report the important aspects of meta-ethnography. Use of the guidance should raise reporting quality. Better reporting could make assessments of confidence in the findings more robust and increase use of meta-ethnography outputs to improve practice, policy and service user outcomes in health and other fields. This is the first tailored reporting guideline for meta-ethnography.

Introduction: The use of substances to increase productivity and resource use efficiency is now essential to face the challenge of feeding the rising global population with the less environmental impact on the ecosystems. Trichodermabased products have been used as biopesticides, to inhibit pathogenic microorganisms, and as biostimulants for crop growth, nutrient uptake promotion, and resistance to abiotic stresses. Methods: In this work, plant metabolomics combined with roots and rhizosphere bacterial metabarcoding were exploited to inspect the performance of Trichoderma spp. biostimulants on Arabidopsis thaliana under drought, heat and their combination and its impact on plant holobiont. Results and discussion: An overall modulation of N-containing compounds, phenylpropanoids, terpenes and hormones could be pointed out by metabolomics. Moreover, metabarcoding outlined an impact on alpha and beta-diversity with an abundance of Proteobacteria, Pseudomonadales Burkholderiales, Enterobacteriales and Azospirillales. A holobiont approach was applied as an integrated analytical strategy to resolve the coordinated and complex dynamic interactions between the plant and its rhizosphere bacteria using Arabidopsis thaliana as a model host species. [ABSTRACT FROM AUTHOR]

Aim: There is an overabundance of claims about the advantages and disadvantages of health interventions. People need to be able to appraise the reliability of these claims. The aim of this two‐arm cluster‐randomized trial was to evaluate the Informed Health Choices secondary school intervention designed to teach students to assess claims about the effects of health actions and make informed decisions. Methods: We conducted the trial among students from 80 secondary schools in five subcounties in Kenya. We used stratified randomization to allocate schools to the intervention or control arm. The intervention included a 2‐day teacher training workshop and 10 lessons that addressed nine prioritized key concepts for assessing claims about treatment effects. We did not intervene in the control schools. The primary outcome was the proportion of students with a passing score (≥ 9/18 correct answers) on the Critical Thinking about Health test, which included two multiple‐choice questions for each concept. Results: Between May 11, 2022, and July 8, 2022, we recruited 3362 students and 80 teachers. We allocated 1863 students and 40 teachers to the intervention and 1499 students and 40 teachers to the control arm. In the intervention schools, 1149/1863 (61.7%) of students achieved a passing score compared to 511/1499 (34.1%) in the control schools (odds ratio 3.6 (95% CI 2.5–5.2), p < 0.0001). Conclusions: The intervention had a large effect on students' ability to think critically about health interventions. It is possible to integrate the learning of critical thinking about health within Kenya secondary school curriculum. [ABSTRACT FROM AUTHOR]

Aim: The aim was to evaluate the effect of the Informed Health Choices (IHC) educational intervention on secondary students' ability to assess health‐related claims and make informed choices. Methods: In a cluster‐randomized trial, we randomized 80 secondary schools (students aged 13–17 years) in Uganda to the intervention or control (usual curriculum). The intervention included a 2‐day teacher training workshop, 10 lessons accessed online by teachers and delivered in one school term. The lesson plans were developed for classrooms equipped with a blackboard or a blackboard and projector. The lessons addressed nine prioritized concepts. We used two multiple‐choice questions for each concept to evaluate the students' ability to assess claims and make informed choices. The primary outcome was the proportion of students with a passing score (≥9 of 18 questions answered correctly). Results: Eighty schools consented and were randomly allocated. A total of 2477 students in the 40 intervention schools and 2376 students in the 40 control schools participated in this trial. In the intervention schools, 1364 (55%) of students that completed the test had a passing score compared with 586 (25%) of students in the control schools (adjusted difference 33%, 95% CI 26%–39%). Conclusions: The IHC secondary school intervention improved students' ability to think critically and make informed choices. Well‐designed digital resources may improve access to educational material, even in schools without computers or other information and communication technology (ICT). This could facilitate scaling‐up use of the resources and help to address inequities associated with limited ICT access. [ABSTRACT FROM AUTHOR]

Aim: The aim of this prospective meta‐analysis was to synthesize the results of three cluster‐randomized trials of an intervention designed to teach lower‐secondary school students (age 14–16) to think critically about health choices. Methods: We conducted the trials in Kenya, Rwanda, and Uganda. The intervention included a 2‐ to 3‐day teacher training workshop, digital resources, and ten 40‐min lessons. The lessons focused on nine key concepts. We did not intervene in control schools. The primary outcome was a passing score on a test (≥9 of 18 multiple‐choice questions answered correctly). We performed random effects meta‐analyses to estimate the overall adjusted odds ratios. Secondary outcomes included effects of the intervention on teachers. Results: Altogether, 244 schools (11,344 students) took part in the three trials. The overall adjusted odds ratio was 5.5 (95% CI: 3.0–10.2; p < 0.0001) in favor of the intervention (high certainty evidence). This corresponds to 33% (95% CI: 25–40%) more students in the intervention schools passing the test. Overall, 3397 (58%) of 5846 students in intervention schools had a passing score. The overall adjusted odds ratio for teachers was 13.7(95% CI: 4.6–40.4; p < 0.0001), corresponding to 32% (95% CI: 6%–57%) more teachers in the intervention schools passing the test (moderate certainty evidence). Overall, 118 (97%) of 122 teachers in intervention schools had a passing score. Conclusions: The intervention led to a large improvement in the ability of students and teachers to think critically about health choices, but 42% of students in the intervention schools did not achieve a passing score. [ABSTRACT FROM AUTHOR]

Aim: The aim of this trial was to evaluate the effects of the Informed Health Choices intervention on the ability of students in Rwandan to think critically and make Informed Health Choices. Methods: We conducted a two‐arm cluster‐randomized trial in 84 lower secondary schools from 10 districts representing five provinces of Rwanda. We used stratified randomization to allocate schools to the intervention or control. One class in each intervention school had ten 40‐min lessons taught by a trained teacher in addition to the usual curriculum. Control schools followed the usual curriculum. The primary outcome was a passing score (≥ 9 out of 18 questions answered correctly) for students on the Critical Thinking about Health Test completed within 2 weeks after the intervention. We conducted an intention‐to‐treat analysis using generalized linear mixed models, accounting for the cluster design using random intercepts. Results: Between February 25 and March 29, 2022, we recruited 3,212 participants. We assigned 1,572 students and 42 teachers to the intervention arm and 1,556 students and 42 teachers to the control arm. The proportion of students who passed the test in the intervention arm was 915/1,572 (58.2%) compared to 302/1,556 (19.4%) in the control arm, adjusted odds ratio 10.6 (95% CI: 6.3–17.8), p < 0.0001, adjusted difference 37.2% (95% CI: 29.5%–45.0%). Conclusions: The intervention is effective in helping students think critically about health choices. It was possible to improve students' ability to think critically about health in the context of a competence‐based curriculum in Rwanda, despite challenging postpandemic conditions. [ABSTRACT FROM AUTHOR]