bluuebunny/crossref_metadata_2025_split huggingface dataset:
Inverse-probability weighting and multiple imputation for evaluating selection bias in the estimation of childhood obesity prevalence using data from electronic health records
Authors: Sayon-Orea Carmen , Moreno-Iribas Conchi , Delfrade Josu , Sanchez-Echenique Manuela , Amiano Pilar , Ardanaz Eva , Gorricho Javier , Basterra Garbiñe , Nuin Marian , Guevara Marcela 
Published: January 2020

AbstractBackground and objectivesHeight and weight data from electronic health records are increasingly being used to estimate the prevalence of childhood obesity. Here, we aim to assess the selection bias due to missing weight and height data from electronic health records in children older than five.MethodsCohort study of 10,811 children born in Navarra (Spain) between 2002 and 2003, who were still living in this region by December 2016. We examined the differences between measured and non-measured children older than 5 years considering weight-associated variables (sex, rural or urban residence, family income and weight status at 2–5 yrs). These variables were used to calculate stabilized weights for inverse-probability weighting and to conduct multiple imputation for the missing data. We calculated complete data prevalence and adjusted prevalence considering the missing data using inverse-probability weighting and multiple imputation for ages 6 to 14 and group ages 6 to 9 and 10 to 14.ResultsFor 6–9 years, complete data, inverse-probability weighting and multiple imputation obesity age-adjusted prevalence were 13.18% (95% CI: 12.54–13.85), 13.22% (95% CI: 12.57–13.89) and 13.02% (95% CI: 12.38–13.66) and for 10–14 years 8.61% (95% CI: 8.06–9.18), 8.62% (95% CI: 8.06–9.20) and 8.24% (95% CI: 7.70–8.78), respectively.ConclusionsAges at which well-child visits are scheduled and for the 6 to 9 and 10 to 14 age groups, weight status estimations are similar using complete data, multiple imputation and inverse-probability weighting. Readily available electronic health record data may be a tool to monitor the weight status in children.
Individual and healthcare system factors influencing antenatal care attendance in Saudi Arabia
Authors: Alanazy W. , Brown A. 
Published: January 2020

Abstract

Background
The World Health Organisation recommends women have at least four antenatal care visits (ANC) during a low risk pregnancy. However, in Saudi Arabia, many mothers miss these appointments, placing their health and that of their baby at risk. Limited research which has explored why this is happening has focused on low maternal education or personal barriers such as lack of transport. The aim of the current research was therefore to understand what factors at the individual and healthcare systems level were associated with missing antenatal care in Saudi Arabia.

Methods
Two hundred and forty-two pregnant women in their third trimester completed a questionnaire examining their care attendance (appointments missed, planned future attendance, timing of first appointment) alongside barriers to attending care. These included maternal demographic background, health literacy, personal barriers, health care system factors and staff communication).

Results
Over half of women surveyed had missed at least one appointment and a third had delayed their care. Mothers who had missed or delayed appointments blamed health care system factors such as poor clinic facilities and waiting times. Attending care was not associated with maternal education or literacy, although mothers with a lower level of literacy were more likely to delay care. However, perceptions of staff communication, consistency and care were lower amongst mothers who had missed at least one appointment.

Conclusions
Although in previous research health professionals believe it is maternal education that leads to poor attendance, in our sample at least, perceptions of staff communication and clinic facilities were instead associated with attendance. Making changes at the health care level e.g. through adapting clinic times and investing in staff training may increase antenatal care attendance in Saudi Arabia.
The research burden of randomized controlled trial participation: a systematic thematic synthesis of qualitative evidence
Authors: Naidoo Nivantha , Nguyen Van Thu , Ravaud Philippe , Young Bridget , Amiel Philippe , Schanté Daniel , Clarke Mike , Boutron Isabelle 
Published: January 2020

Abstract
Background
Participation in randomized controlled trials (RCTs) may be quite demanding and could represent an important burden for patients. We aimed to explore this research burden (i.e., the psychological, physical, and financial burdens) experienced by patients through their participation in a RCT.

Methods
We conducted a systematic review of qualitative studies exploring adult patients’ experiences with RCT participation. We searched MEDLINE (PubMed), CINAHL, PSYCHINFO, and Embase (search date March 2018) for eligible reports. Qualitative data coding and indexing were assisted by NVivo. The quality of reports was assessed by using the Critical Appraisal Skills Program (CASP) tool.

Results
We included 45 qualitative studies that involved 1732 RCT participants. Important psychological burdens were identified at every stage of the trial process. Participants reported feeling anxiety and being afraid of “being a ‘guinea pig’” and described undergoing randomization and allocation to a placebo as particularly difficult resulting in disappointment, anger, and depression. Patients’ follow-up and trial closure were also responsible for a wide range of psychological, physical, and financial burdens. Furthermore, factors related to burdensome impacts and consequences were discerned. These factors involved trial information, poorly organized and too-demanding follow-up, and lack of appropriate management when the patient’s participation ended. Trial participation was also associated with beneficial effects such as the satisfaction of feeling “useful,” gaining “a sense of control,” and receiving special attention.

Conclusions
Our finding provides a detailed description of research burden across the whole RCT process. Many of the burdens described could be anticipated, and some avoided in a movement toward minimally disruptive clinical research. Such an approach could improve trial recruitment and retention.

Review registration
PROSPERO CRD42018098994
Molecular alterations of the TLR4-signaling cascade in canine epilepsy
Authors: von Rüden Eva-Lotta , Gualtieri Fabio , Schönhoff Katharina , Reiber Maria , Wolf Fabio , Baumgärtner Wolfgang , Hansmann Florian , Tipold Andrea , Potschka Heidrun 
Published: January 2020

Abstract
Background
Cumulating evidence from rodent models points to a pathophysiological role of inflammatory signaling in the epileptic brain with Toll-like receptor-4 signaling acting as one key factor. However, there is an apparent lack of information about expression alterations affecting this pathway in canine patients with epilepsy. Therefore, we have analyzed the expression pattern of Toll-like receptor 4 and its ligands in brain tissue of canine patients with structural or idiopathic epilepsy in comparison with tissue from laboratory dogs or from owner-kept dogs without neurological diseases.

Results
The analysis revealed an overexpression of Toll-like receptor-4 in the CA3 region of dogs with structural epilepsy. Further analysis provided evidence for an upregulation of Toll-like receptor-4 ligands with high mobility group box-1 exhibiting increased expression levels in the CA1 region of dogs with idiopathic and structural epilepsy, and heat shock protein 70 exhibiting increased expression levels in the piriform lobe of dogs with idiopathic epilepsy. In further brain regions, receptor and ligand expression rates proved to be either in the control range or reduced below control levels.

Conclusions
Our study reveals complex molecular alterations affecting the Toll-like receptor signaling cascade, which differ between epilepsy types and between brain regions. Taken together, the data indicate that multi-targeting approaches modulating Toll-like receptor-4 signaling might be of interest for management of canine epilepsy. Further studies are recommended to explore respective molecular alterations in more detail in dogs with different etiologies and to confirm the role of the pro-inflammatory signaling cascade as a putative target.
Morphine plasmatic concentration in a pregnant mare and its foal after long term epidural administration
Authors: Mirra Alessandro , Birras Jasmin , Diez Bernal Sabina , Spadavecchia Claudia 
Published: January 2020

Abstract
Background
Epidural administration of morphine has been shown to be an effective analgesic strategy in horses; however, the possible occurrence of side effects limits its usage. In order to decrease their frequency, it is important to target the minimal effective plasma concentration and avoid overdosing. As to date species-specific pharmacokinetics data are not available for epidural morphine, the dosing regimen is usually established on the basis of clinical reports and personal experience. In certain physiological conditions, like gestation, the outcome of an empirical dosing scheme can be unpredictable. The aim of this case report is to describe the pharmacological profile of morphine and its metabolites after prolonged epidural administration in a pregnant mare and her foal.

Case presentation
A 20 years old pregnant mare was presented to our hospital because of severe lameness, 2 months before delivery. Following an ineffective systemic pain treatment, an epidural catheter was inserted and morphine administered (initial dose 0.1 mg/kg every 8 h). Due to its efficacy in controlling pain, it was continued until end of gestation. Plasmatic concentration of morphine and its metabolites were assessed in the mare 6 weeks after starting the treatment, and in both the mare and foal during the first days after delivery. Plasmatic values similar to those previously reported in the literature following morphine short term administration through various routes and not accompanied by side effects were found in the mare, except during an excitatory period. Moreover, no evidence of dangerous drug accumulation or significant milk passage was noticed in the foal. Mild reduction of feces production with no signs of colic and two self-limiting episodes of excitement occurred during treatment in the mare. No side effects occurred during gestation and first phases of life in the foal.

Conclusion
Prolonged epidural administration of morphine in a pregnant mare allowed good pain control in absence of clinically relevant side effects, in both the mare and her foal. Sudden increase in morphine plasmatic concentration can occur and side effects appear; careful treatment to the lowest effective dose and continuous monitoring of the clinical condition of the treated horse should be performed.
Metabolic and cardiorespiratory effects of decreasing lung hyperinflation with budesonide/formoterol in COPD: a randomized, double-crossover, placebo-controlled, multicenter trial
Authors: Divo Miguel J. , DePietro Michael R. , Horton John R. , Maguire Cherie A. , Celli Bartolome R. 
Published: January 2020

Abstract
Background
Studies suggest that acute decreases in lung hyperinflation at rest improves cardiac function and increases lung vascular perfusion from decompression of a compromised heart. In those studies, changes in resting oxygen uptake induced by medications, an alternative explanation for compensatory increased cardiac function, were not explored.

Methods
This double-blind, multicenter, double-crossover study enrolled adults with chronic obstructive pulmonary disease, resting hyperinflation, and > 10% improvement in inspiratory capacity after 2 inhalations of budesonide/formoterol 160/4.5 μg. Metabolic, cardiac, and ventilatory function were measured 60 min pre−/post-dose at each visit. Primary endpoint was change in resting oxygen uptake for budesonide/formoterol versus placebo.

Results
Fifty-one patients (median age: 63 years) received treatment. Compared with placebo, budesonide/formoterol significantly increased resting oxygen uptake (mean change from baseline: 1.25 vs 11.37 mL/min; P = 0.007) as well as tidal volume and minute ventilation. This occurred despite improvements in the inspiratory capacity, forced vital capacity, and expiratory volume in 1 s. No significant treatment differences were seen for oxygen saturation, respiratory rate, and resting dyspnea. There was a numerical increase in oxygen pulse (oxygen uptake/heart rate). Correlations between inspiratory capacity and oxygen pulse were weak.

Conclusions
Budesonide/formoterol treatment in resting hyperinflated patients with COPD results in significant deflation. The increase in oxygen uptake and minute ventilation at lower lung volumes, without changes in heart rate and with minimal improvement in oxygen pulse, suggests increased oxygen demand as a contributor to increased cardiac function.

Trial registration
ClinicalTrials.govidentifier: NCT02533505.
How do organisations implement research impact assessment (RIA) principles and good practice? A narrative review and exploratory study of four international research funding and administrative organisations
Authors: Kamenetzky Adam , Hinrichs-Krapels Saba 
Published: January 2020

Abstract
Background
Public research funding agencies and research organisations are increasingly accountable for the wider impacts of the research they support. While research impact assessment (RIA) frameworks and tools exist, little is known and shared of how these organisations implement RIA activities in practice.

Methods
We conducted a review of academic literature to search for research organisations’ published experiences of RIAs. We followed this with semi-structured interviews from a convenience sample (n = 7) of representatives of four research organisations deploying strategies to support and assess research impact.

Results
We found only five studies reporting empirical evidence on how research organisations put RIA principles into practice. From our interviews, we observed a disconnect between published RIA frameworks and tools, and the realities of organisational practices, which tended not to be reported.
We observed varying maturity and readiness with respect to organisations’ structural set ups for conducting RIAs, particularly relating to leadership, skills for evaluation and automating RIA data collection. Key processes for RIA included efforts to engage researcher communities to articulate and plan for impact, using a diversity of methods, frameworks and indicators, and supporting a learning approach. We observed outcomes of RIAs as having supported a dialogue to orient research to impact, underpinned shared learning from analyses of research, and provided evidence of the value of research in different domains and to different audiences.

Conclusions
Putting RIA principles and frameworks into practice is still in early stages for research organisations. We recommend that organisations (1) get set up by considering upfront the resources, time and leadership required to embed impact strategies throughout the organisation and wider research ‘ecosystem’, and develop methodical approaches to assessing impact; (2) work together by engaging researcher communities and wider stakeholders as a core part of impact pathway planning and subsequent assessment; and (3) recognise the benefits that RIA can bring about as a means to improve mutual understanding of the research process between different actors with an interest in research.
Building an integrated knowledge translation (IKT) evidence base: colloquium proceedings and research direction
Authors:   for the Integrated Knowledge Translation Research Network, Boland L. , Kothari A. , McCutcheon C. , Graham I. D. 
Published: January 2020

Abstract
Background
Integrated knowledge translation (IKT) is a model of research co-production, whereby researchers partner with knowledge users throughout the research process and who can use the research recommendations in practice or policy. IKT approaches are used to improve the relevance and impact of research. As an emerging field, however, the evidence underpinning IKT is in active development. The Integrated Knowledge Translation Research Network represents a collaborative interdisciplinary team that aims to advance the state of IKT science.

Methods
In 2017, the Integrated Knowledge Translation Research Network issued a call to its members for concept papers to further define IKT, outline an IKT research agenda, and inform the Integrated Knowledge Translation Research Network’s special meeting entitled, Integrated Knowledge Translation State of the Science Colloquium, in Ottawa, Canada (2018). At the colloquium, authors presented concept papers and discussed knowledge-gaps for a research agenda and implications for advancing the IKT field. We took detailed field notes, audio-recorded the meeting and analysed the data using qualitative content analysis.

Results
Twenty-four participants attended the meeting, including researchers (n = 11), trainees (n = 6) and knowledge users (n = 7). Seven overarching categories emerged from these proceedings – IKT theory, IKT methods, IKT process, promoting partnership, definitions and distinctions of key IKT terms, capacity-building, and role of funders. Within these categories, priorities identified for future IKT research included: (1) improving clarity about research co-production/IKT theories and frameworks; (2) describing the process for engaging knowledge users; and (3) identifying research co-production/IKT outcomes and methods for evaluation.

Conclusion
The Integrated Knowledge Translation State of the Science Colloquium initiated a research agenda to advance IKT science and practice. Next steps will focus on building a theoretical and evidence base for IKT.
Respectful maternity care and its related factors in maternal units of public and private hospitals in Tabriz: a sequential explanatory mixed method study protocol
Authors: Hajizadeh Khadije , Vaezi Maryam , Meedya Shahla , Mohammad Alizadeh Charandabi Sakineh , Mirghafourvand Mojgan 
Published: January 2020

Abstract
Background
Disrespect and abuse (D&A) can violate human rights, affect women’s decisions on the type of delivery method, and exacerbate their mental health conditions; therefore, this study aims to: a) assess the status of D&A and respectful maternity care (RMC) during childbirth and their relationships with childbirth experience, socio-demographic and obstetrics characteristics; b) explain women’s perceptions of various RMC aspects and determinants during childbirth; and c) present a guideline for promoting of RMC.

Methods/design
A mixed methods sequential explanatory design will be used to conduct this study in 3 phases. The first phase is a quantitative study with a longitudinal descriptive-analytical design to identify any D&A and RMC and their relationships with childbirth experience among 334 women who have given birth in public and private hospitals in Tabriz, Iran. The sample will be selected proportional to each population. The second phase is a qualitative study to explore women’s perceptions of various RMC aspects and their determinants during childbirth. The conventional content analysis approach will be used to analyze the data. The third phase is focused on developing a guideline to improve the quality of maternity care. The literature review, findings of phase one and two, and focus group discussion (FGDs) with staff in the labour ward and using a Delphi technique will be used to complete the final phase.

Discussion
Considering the vulnerability of women during labor and delivery and the effect of D&A on cesarean section rates, a supportive guideline can improve the quality of maternity care and reduce D&A during childbirth, and improve women’s childbirth experiences.

Ethical code
IR.TBZMED.REC.1398.202.
A mental health intervention program for the oocyte donors: protocol for a mixed methods study
Authors: Adib Moghaddam Elham , Kazemi Ashraf , Kheirabadi Gholamreza , Ahmadi Seyyed Mehdi 
Published: January 2020

Abstract
Background
Oocyte donation is one of the assisted reproductive techniques that can undermine the mental health of the women donor. As such, the aim of this study is to design a mental health promotion program for oocyte donors.

Methods
This is an exploratory mixed methods study (qualitative-quantitative) that consists of three phases. In the first phase, a qualitative study will be conducted to identify the needs and strategies of the mental health promotion program for the women donors. In this phase, the participants will be selected using purposeful sampling method and the data will be collected through semi-structured interviews. In the second phase, the initial draft of the program is designed and validated in the panel of experts and using the classic Delphi technique and, then, the program is finalized. In the third phase, the designed program will be implemented as a quasi-experimental study in two groups of program recipients (intervention) and control, and the effectiveness of the intervention program will be evaluated.

Discussion
In order to design a documentation-based mental health promotion program for the oocyte donors, their experience during the process of oocyte donation should be evaluated. Doing so, the program will be developed based on the specific circumstances of the target population and their social and cultural context and, hence, will have the highest impact.
Improvement in RNA quantity and quality in cervico-vaginal cytology
Authors: Chong Gun Oh. , Han Hyung Soo , Lee Seon Duk , Lee Yoon Hee 
Published: January 2020

AbstractThe separation of exfoliated cells from the brushes used during cervico-vaginal smears is difficult, a problem which may affect the quality of ribonucleic acid (RNA) extracted. We compared the results of RNA extraction from cervico-vaginal cytology samples according to the type of tubes, preservative solutions, and storage temperature. The samples included exfoliated cervico-vaginal cytological specimens from patients with human papilloma virus 16, positive for cervical intraepithelial neoplasia or cervical cancer. Exfoliated cells were obtained by shaking a brush in a conventional rigid vial tube or squeezing the brush in a soft vial tube. RNA quantity and quality were compared between the two tubes. The concentration and purity of RNA (A260/A280 and A260/A230 ratios) was compared amongst five groups: Group 1, standard frozen storage; Group 2–4, RNA stabilization reagents with room temperature [RNAlater RNA Stabilization Reagent, RNAprotect cell Reagent and AllProtect Tissue Reagent]; and Group 5, Surepath Preservative fluid. To demonstrate the utility of the extracted RNA for PCR-based cDNA synthesis, GAPDH and E6 were targeted and gel band densities of GAPDH and E6 were measured. The median RNA concentration was significantly higher in the soft tubes compared with the rigid tubes (100.2 vs. 7.1 ng/μL, p = 0.0209). The purity of the RNA was higher in soft vial tubes than in rigid vials, as measured by A260/280 and A260/230 ratios. The RNA concentration, purity, and GAPDH density of groups 1, 2 and 3 were significantly higher than those of groups 4 and 5. Moreover, E6 density of group 1 and 2 was significantly higher than that of group 3, 4 and 5. The use of soft tubes enhanced the mRNA quantity and quality in cervico-vaginal cytology. The products of mRNA extraction using RNAlater RNA Stabilization Reagent and RNAprotect Cell Reagent at room temperature were comparable to those obtained by conventional frozen storage. Our protocol improved the yield and quality of RNA and might produce better results for molecular analysis in cervico-vaginal cytology.