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Nevin Manimala Statistics

Protocol: The role of defunctioning stoma prior to neoadjuvant therapy for locally advanced colonic and rectal cancer-A systematic review

PLoS One. 2022 Sep 22;17(9):e0275025. doi: 10.1371/journal.pone.0275025. eCollection 2022.

ABSTRACT

Defunctioning stomas (ileostomy and colostomy) may be used prior to commencement of neoadjuvant therapy in patients with locally advanced colon or rectal cancer, in order to prevent clinical large bowel obstruction caused by radiotherapy associated oedema or progression of disease in patients who are not obstructed. However, the exact rate of clinical obstruction in patients undergoing neoadjuvant therapy who do not receive a defunctioning stoma is not known. Furthermore, it is not clear which factors predispose patients to developing clinical large bowel obstruction. Given that defunctioning stomas are associated with post operative and intra-operative risks, it is not currently possible to tailor defunctioning stomas to patients who have the greatest risk of developing obstruction. This systematic review which is in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analysis statement (PRISMA), aims to define the role of defunctioning stomas in prevention of obstruction patients with locally advanced colon or rectal cancer while undergoing neoadjuvant therapy. Two researchers will perform the literature search which will include all published and “in process” articles published in the English language between 2002-2022 in the following databases: EMBASE (OVID), MEDLINE (EBSCO), CINHAL complete, Web of Science, Cochrane Central Registry of Controlled Trials, Clinical Trials Registry. The full text of the selected articles will be independently screened by two researchers against the inclusion criteria. Data will be extracted from each article regarding: study design, participants, type of intervention and outcomes. The effect size will be expressed in incidence rates and when appropriate in relative risk with 95% confidence intervals. If possible, we will perform a meta-analysis. Heterogeneity will be assessed using I2 statistics. We will pool the data extracted from the randomised controlled trials to perform a meta-analysis using the Review Manager 5 software (RevMan 5). The Grades of Recommendation, Assessment, Development and Evaluation (GRADE) system will be used to assess the certainty of the evidence.

PMID:36137109 | DOI:10.1371/journal.pone.0275025

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Nevin Manimala Statistics

Machine-learning-derived predictive score for early estimation of COVID-19 mortality risk in hospitalized patients

PLoS One. 2022 Sep 22;17(9):e0274171. doi: 10.1371/journal.pone.0274171. eCollection 2022.

ABSTRACT

The clinical course of COVID-19 is highly variable. It is therefore essential to predict as early and accurately as possible the severity level of the disease in a COVID-19 patient who is admitted to the hospital. This means identifying the contributing factors of mortality and developing an easy-to-use score that could enable a fast assessment of the mortality risk using only information recorded at the hospitalization. A large database of adult patients with a confirmed diagnosis of COVID-19 (n = 15,628; with 2,846 deceased) admitted to Spanish hospitals between December 2019 and July 2020 was analyzed. By means of multiple machine learning algorithms, we developed models that could accurately predict their mortality. We used the information about classifiers’ performance metrics and about importance and coherence among the predictors to define a mortality score that can be easily calculated using a minimal number of mortality predictors and yielded accurate estimates of the patient severity status. The optimal predictive model encompassed five predictors (age, oxygen saturation, platelets, lactate dehydrogenase, and creatinine) and yielded a satisfactory classification of survived and deceased patients (area under the curve: 0.8454 with validation set). These five predictors were additionally used to define a mortality score for COVID-19 patients at their hospitalization. This score is not only easy to calculate but also to interpret since it ranges from zero to eight, along with a linear increase in the mortality risk from 0% to 80%. A simple risk score based on five commonly available clinical variables of adult COVID-19 patients admitted to hospital is able to accurately discriminate their mortality probability, and its interpretation is straightforward and useful.

PMID:36137106 | DOI:10.1371/journal.pone.0274171

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COVID-19 infected cases in Canada: Short-term forecasting models

PLoS One. 2022 Sep 22;17(9):e0270182. doi: 10.1371/journal.pone.0270182. eCollection 2022.

ABSTRACT

Governments have implemented different interventions and response models to combat the spread of COVID-19. The necessary intensity and frequency of control measures require us to project the number of infected cases. Three short-term forecasting models were proposed to predict the total number of infected cases in Canada for a number of days ahead. The proposed models were evaluated on how their performance degrades with increased forecast horizon, and improves with increased historical data by which to estimate them. For the data analyzed, our results show that 7 to 10 weeks of historical data points are enough to produce good fits for a two-weeks predictive model of infected case numbers with a NRMSE of 1% to 2%. The preferred model is an important quick-deployment tool to support data-informed short-term pandemic related decision-making at all levels of governance.

PMID:36137098 | DOI:10.1371/journal.pone.0270182

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Young adults’ perspective of global environmental risks: A study on Polish university students

PLoS One. 2022 Sep 22;17(9):e0273393. doi: 10.1371/journal.pone.0273393. eCollection 2022.

ABSTRACT

This article presents the results of a study conducted on Polish university students to verify how they assess the probability of environmental risks and their potential impact on the socio-economic situation in Poland. To this end, 703 students of public universities in Warsaw were asked to complete risk assessment questionnaires. According to the respondents, of all identified types of threats, technological risks were found to be the most probable, with the environmental ones carrying the most significant social and economic impact. Among those risks, climate change was recognised as the most probable, while environmental contamination was perceived as having the strongest potential impact on Poland. No statistically significant differences were found in the views of women and men on the probability of environmental risks and their impact on the country’s socio-economic situation. Compared with students of technical and economic faculties, students of natural sciences, education, and nursing assessed the probability of environmental risks and the strength of their potential impact in Poland as much higher. The results of the study can be used to develop a communication strategy dedicated to young people in the education of environmental risks.

PMID:36137076 | DOI:10.1371/journal.pone.0273393

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Association analyses of rare variants identify two genes associated with refractive error

PLoS One. 2022 Sep 22;17(9):e0272379. doi: 10.1371/journal.pone.0272379. eCollection 2022.

ABSTRACT

PURPOSE: Genetic variants identified through population-based genome-wide studies are generally of high frequency, exerting their action in the central part of the refractive error spectrum. However, the power to identify associations with variants of lower minor allele frequency is greatly reduced, requiring considerable sample sizes. Here we aim to assess the impact of rare variants on genetic variation of refractive errors in a very large general population cohort.

METHODS: Genetic association analyses of non-cyclopaedic autorefraction calculated as mean spherical equivalent (SPHE) used whole-exome sequence genotypic information from 50,893 unrelated participants in the UK Biobank of European ancestry. Gene-based analyses tested for association with SPHE using an optimised SNP-set kernel association test (SKAT-O) restricted to rare variants (minor allele frequency < 1%) within protein-coding regions of the genome. All models were adjusted for age, sex and common lead variants within the same locus reported by previous genome-wide association studies. Potentially causal markers driving association at significant loci were elucidated using sensitivity analyses by sequentially dropping the most associated variants from gene-based analyses.

RESULTS: We found strong statistical evidence for association of SPHE with the SIX6 (p-value = 2.15 x 10-10, or Bonferroni-Corrected p = 4.41×10-06) and the CRX gene (p-value = 6.65 x 10-08, or Bonferroni-Corrected p = 0.001). The SIX6 gene codes for a transcription factor believed to be critical to the eye, retina and optic disc development and morphology, while CRX regulates photoreceptor specification and expression of over 700 genes in the retina. These novel associations suggest an important role of genes involved in eye morphogenesis in refractive error.

CONCLUSION: The results of our study support previous research highlighting the importance of rare variants to the genetic risk of refractive error. We explain some of the origins of the genetic signals seen in GWAS but also report for the first time a completely novel association with the CRX gene.

PMID:36137074 | DOI:10.1371/journal.pone.0272379

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Geographically weighted regression analysis of anemia and its associated factors among reproductive age women in Ethiopia using 2016 demographic and health survey

PLoS One. 2022 Sep 22;17(9):e0274995. doi: 10.1371/journal.pone.0274995. eCollection 2022.

ABSTRACT

INTRODUCTION: Anemia in reproductive age women is defined as the hemoglobin level <11g/dl for lactating or pregnant mothers and hemoglobin level <12 g/dl for none pregnant or non-lactating women. Anemia is a global public health problem affecting both developing and developed countries. Therefore this study aims to determine geographically weighted regression analysis of anemia and its associated factors among reproductive age women in Ethiopia using the 2016 Demographic and Health Survey.

METHOD: In this study, a total of 14,570 women of reproductive age were included. Multi-level binary logistic regression models were employed using STATA version 14. Odds ratio with a 95% confidence interval and p-values less than 0.05 was used to identify significant factors. Spatial scan statistics were used to identify the presence of anemia clusters using Kulldorf’s SaTScan version 9.6 software. ArcGIS 10.7 software was used to visualize the spatial distribution and geographically weighted regression of anemia among reproductive age women.

RESULT: Overall 23.8% of reproductive-age women were anemic. The SaTScan spatial analysis identified the primary clusters’ spatial window in Southeastern Oromia and the entire Somali region. The GWR analysis shows that having a formal education, using pills/injectables/implant decreases the risks of anemia. However, women who have more than one child within five years have an increased risk of anemia in Ethiopia. In addition to these, in multilevel analysis women who were married and women who have >5 family members were more likely to have anemia.

CONCLUSION: In Ethiopia, anemia among reproductive age women was relatively high and had spatial variations across the regions. Policymakers should give attention to mothers who have a low birth interval, married women, and large family size. Women’s education and family planning usage especially pills, implants, or injectable should be strengthened.

PMID:36136977 | DOI:10.1371/journal.pone.0274995

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Primary school teachers’ use and perception of digital technology in early reading and writing education in inclusive settings

Disabil Rehabil Assist Technol. 2022 Sep 22:1-10. doi: 10.1080/17483107.2022.2125089. Online ahead of print.

ABSTRACT

PURPOSE: The present study aimed to investigate teachers’ use and perceptions of digital technology to promote learning and participation for all young students in early reading and writing education in inclusive primary schools.

METHODS: Primary school teachers [N = 289] in Sweden were asked to complete a survey about digital technology in reading and writing education. The data were analysed statistically and with summative content analysis.

RESULTS: The results showed that 82% of the teachers were interested in teaching young students to read and write using digital technology. More than 50% of the teachers included digital technology to promote students’ learning of phonological awareness, decoding skills, vocabulary, spelling, or text editing every week, and 74% used digital technology to support students with special needs every week. Those who perceived digital technology as a facilitator of all students’ participation in early reading and writing education also reported that they used digital technology to promote different reading and writing skills more frequently. Their perceived knowledge of managing digital technology was also positively related to their perception of digital technology as a facilitator of students’ participation in reading and writing education.IMPLICATIONS FOR REHABILITATIONTeachers who are positive about digital technology perceive such technology as beneficial for all students in reading and writing education, also for those students who have special needs.Teachers use digital technology to compensate students with special needs in reading and writing. However, there is an unawareness of the advantages of using digital technology in inclusive education.

PMID:36136960 | DOI:10.1080/17483107.2022.2125089

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Feasibility and Acceptability of Music Imagery and Listening Interventions for Analgesia: Protocol for a Randomized Controlled Trial

JMIR Res Protoc. 2022 Sep 22;11(9):e38788. doi: 10.2196/38788.

ABSTRACT

BACKGROUND: Chronic pain and access to care are identified as critical needs of the Veterans Health Administration. Music imagery and music listening interventions have shown promise as effective nonpharmacological options for pain management. However, most studies have focused on acute pain, passive music experiences, and in-person delivery.

OBJECTIVE: In this study, we aimed to examine the feasibility and acceptability of 2 music interventions delivered through telehealth for chronic musculoskeletal pain, trial design, and theoretical model before conducting a fully powered efficacy or comparative effectiveness trial.

METHODS: FAMILIA (Feasibility and Acceptability of Music Imagery and Listening Interventions for Analgesia) is a 3-arm, parallel group, pilot trial. A total of 60 veterans will be randomized to one of the three conditions: music imagery, music listening, or usual care. Aim 1 is to test the feasibility and acceptability of a multicomponent, interactive music imagery intervention (8-weekly, individual sessions) and a single-component, minimally interactive music learning intervention (independent music listening). Feasibility metrics related to recruitment, retention, engagement, and completion of the treatment protocol and questionnaires will be assessed. Up to 20 qualitative interviews will be conducted to assess veteran experiences with both interventions, including perceived benefits, acceptability, barriers, and facilitators. Interview transcripts will be coded and analyzed for emergent themes. Aim 2 is to explore the effects of music imagery and music listening versus usual care on pain and associated patient-centered outcomes. These outcomes and potential mediators will be explored through changes from baseline to follow-up assessments at 1, 3, and 4 months. Descriptive statistics will be used to describe outcomes; this pilot study is not powered to detect differences in outcomes.

RESULTS: Recruitment for FAMILIA began in March 2022, and as of July 2022, 16 participants have been enrolled. We anticipate that enrollment will be completed by May 2023. We expect that music imagery and music listening will prove acceptable to veterans and that feasibility benchmarks will be reached. We hypothesize that music imagery and music listening will be more effective than usual care on pain and related outcomes.

CONCLUSIONS: FAMILIA addresses four limitations in music intervention research for chronic pain: limited studies in veterans, evaluation of a multicomponent music intervention, methodological rigor, and internet-based delivery. Findings from FAMILIA will inform a fully powered trial to identify putative mechanisms and test efficacy.

TRIAL REGISTRATION: ClinicalTrials.gov NCT05426941; https://tinyurl.com/3jdhx28u.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/38788.

PMID:36136377 | DOI:10.2196/38788

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Factors influencing the decision to receive seasonal influenza vaccination among US corporate non-healthcare workers

Hum Vaccin Immunother. 2022 Sep 22:2122379. doi: 10.1080/21645515.2022.2122379. Online ahead of print.

ABSTRACT

Influenza causes significant mortality and morbidity in the United States (US). Employees are exposed to influenza at work and can spread it to others. The influenza vaccine is safe, effective, and prevents severe outcomes; however, coverage among US adults (50.2%) is below Healthy People 2030 target of 70%. These highlights need for more effective vaccination promotion interventions. Understanding predictors of vaccination acceptance could inform vaccine promotion messages, improve coverage, and reduce illness-related work absences. We aimed to identify factors influencing influenza vaccination among US non-healthcare workers. Using mixed-methods approach, we evaluated factors influencing influenza vaccination among employees in three US companies during April-June 2020. Survey questions were adapted from the WHO seasonal influenza survey. Most respondents (n = 454) were women (272, 59.9%), 20-39 years old (n = 250, 55.1%); white (n = 254, 56.0%); had a college degree (n = 431, 95.0%); and reported receiving influenza vaccine in preceding influenza season (n = 297, 65.4%). Logistic regression model was statistically significant, X (16, N = 450) = 31.6, p = .01. Education [(OR) = 0.3, 95%CI = 0.1-0.6)] and race (OR = 0.4, 95%CI = 0.2-0.8) were significant predictors of influenza vaccine acceptance among participants. The majority had favorable attitudes toward influenza vaccination and reported that physician recommendation would influence their vaccination decisions. Seven themes were identified in qualitative analysis: “Protecting others” (109, 24.0%), “Protecting self” (105, 23.1%), “Vaccine accessibility” (94, 20.7%), “Education/messaging” (71, 15.6%), “Policies/requirements” (15, 3.3%), “Reminders” (9, 2.0%), and “Incentives” (3, 0.7%). Our findings could facilitate the development of effective influenza vaccination promotion messages and programs for employers, and workplace vaccination programs for other diseases such as COVID-19, by public health authorities.

PMID:36136345 | DOI:10.1080/21645515.2022.2122379

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Use and Reporting of Patient-Reported Outcomes in Trials of Palliative Radiotherapy: A Systematic Review

JAMA Netw Open. 2022 Sep 1;5(9):e2231930. doi: 10.1001/jamanetworkopen.2022.31930.

ABSTRACT

IMPORTANCE: Approximately 50% of all patients with cancer have an indication for radiotherapy, and approximately 50% of radiotherapy is delivered with palliative intent, with the aim of alleviating symptoms. Symptoms are best assessed by patient-reported outcomes (PROs), yet their reliable interpretation requires adequate reporting in publications.

OBJECTIVE: To investigate the use and reporting of PROs in clinical trials of palliative radiotherapy.

EVIDENCE REVIEW: This preregistered systematic review searched PubMed/Medline, EMBASE, and the Cochrane Center Register of Controlled Trials for clinical trials of palliative radiotherapy published from 1990 to 2020. Key eligibility criteria were palliative setting, palliative radiotherapy as treatment modality, and clinical trial design (per National Institutes of Health definition). Two authors independently assessed eligibility. Trial characteristics were extracted and standard of PRO reporting was assessed in adherence to the Consolidated Standards of Reporting Trials (CONSORT) PRO extension. The association of the year of publication with the use of PROs was assessed by logistic regression. Factors associated with higher CONSORT-PRO adherence were analyzed by multiple regression. This study is reported following the PRISMA guidelines.

FINDINGS: Among 7377 records screened, 225 published clinical trials representing 24 281 patients were eligible. Of these, 45 trials (20%) used a PRO as a primary end point and 71 trials (31%) used a PRO as a secondary end point. The most prevalent PRO measures were the Numeric Rating Scale/Visual Analogue Scale (38 trials), European Organization for the Research and Treatment of Cancer Quality of Life Questionnaire C30 (32 trials), and trial-specific unvalidated measures (25 trials). A more recent year of publication was significantly associated with a higher chance of PROs as a secondary end point (odds ratio [OR], 1.04 [95% CI, 1.00-1.07]; P = .03) but not as primary end point. Adherence to CONSORT-PRO was poor or moderate for most items. Mean (SD) adherence to the extension adherence score was 46.2% (19.6%) for trials with PROs as primary end point and 31.8% (19.8%) for trials with PROs as a secondary end point. PROs as a primary end point (regression coefficient, 9.755 [95% CI, 2.270-17.240]; P = .01), brachytherapy as radiotherapy modality (regression coefficient, 16.795 [95% CI, 5.840-27.751]; P = .003), and larger sample size (regression coefficient, 0.028 [95% CI, 0.006-0.049]; P = .01) were significantly associated with better PRO reporting per extension adherence score.

CONCLUSIONS AND RELEVANCE: In this systematic review of palliative radiotherapy trials, the use and reporting of PROs had room for improvement for future trials, preferably with PROs as a primary end point.

PMID:36136335 | DOI:10.1001/jamanetworkopen.2022.31930