Category: Statistics

Vascular. 2023 Aug 4:17085381231193494. doi: 10.1177/17085381231193494. Online ahead of print.

ABSTRACT

OBJECTIVES: Peripheral arterial disease (PAD) results from the systemic atherosclerotic process. In this study, we aimed to determine the relationship between plasma atherogenic index (AIP), a ratio of molar concentrations of triglycerides to HDL-cholesterol, and long-term outcomes after endovascular therapy (EVT) in patients with superficial femoral artery (SFA) stenosis.

METHODS: We retrospectively evaluated 673 patients who underwent EVT for PAD in our tertiary center between January 2015 and December 2020. In the receiver operating characteristic (ROC) curve analysis, the AIP value with the optimum cutoff value was determined as 0.576 to detect the presence of major adverse limb events (MALEs). Patients were divided into two groups according to low AIP (<0.576 as group 1) and high AIP (>0.576 as group 2).

RESULTS: Among the major endpoints, long-term restenosis rates were significantly higher in patients in the high-AIP group than in the low-AIP group (p<.001). The lower extremity amputation rate was not statistically significant between the two groups. All-cause mortality rate (54 (31.6) versus 117 (68.4), p<.001) was significantly higher in patients in the high-AIP group than in the low-AIP group. In addition, the MALE rate (94 (29.2) versus 218 (62.1), p<.001) was significantly higher in patients in the high-AIP group than in those in the low-AIP group.

CONCLUSIONS: In conclusion, we found that AIP is a significant independent predictor of long-term MALE in patients who underwent EVT for SFA.

PMID:37540809 | DOI:10.1177/17085381231193494

Psychiatry. 2023 Aug 4:1-8. doi: 10.1080/00332747.2023.2238573. Online ahead of print.

ABSTRACT

ObjectiveFew investigations have focused specifically on engaging Spanish-speaking patients in early post-injury comparative effectiveness trials. The goal of this study was to identify and categorize hospitalized Spanish-speaking injury survivors’ posttraumatic concerns. Method: A secondary analysis of baseline data collected as part of a larger randomized comparative effectiveness trial was conducted. Participants were 22 male and female Spanish, non-English, speaking survivors of intentional and unintentional injuries, ages ≥ 18. At baseline, while hospitalized, each patient was asked to describe the nature and severity of their post-injury concerns. Patient concern narratives were audio-recorded and later transcribed. Raters coded patients’ transcribed concerns into content domains. The associations between patient self-reported concern severity and posttraumatic stress disorder symptoms assessed with the PTSD Checklist and depressive symptoms assessed with the PHQ-9 were also ascertained. Results: The concerns of Spanish-speaking patients were reliably categorized into previously described content domains (i.e., work and finance, physical health, social, psychological, medical, and legal domains). The composite Kappa statistic across domains was 0.83 (95% Confidence Interval = 0.74, 0.92). Spanish-speaking patients also expressed novel concerns, including immigration, discriminatory experiences, and Coronavirus pandemic, related concerns. The number of severe patient concerns was highly correlated with PHQ-9 depressive symptom levels (r = 0.52, p < .05). Conclusions: The concerns of Spanish-speaking trauma survivors can be readily elicited and reliably interpreted. Future research could integrate concern narrative elicitation and amelioration into stepped care intervention procedures in order to engage diverse Spanish-speaking injury survivors and advance equitable trauma care system service delivery.

PMID:37540791 | DOI:10.1080/00332747.2023.2238573

Chem Biodivers. 2023 Aug 4:e202300650. doi: 10.1002/cbdv.202300650. Online ahead of print.

ABSTRACT

The Lauraceae is a botanical family known for its anti-inflammatory potential. However, several species have not yet been studied. Thus, this work aimed to screen the anti-inflammatory activity of this plant family and to build statistical prediction models. The methodology was based on the statistical analysis of high-resolution liquid chromatography coupled with mass spectrometry data and the ex vivo anti-inflammatory activity of plant extracts. The ex vivo results demonstrated significant anti-inflammatory activity for several of these plants for the first time. The sample data were applied to build anti-inflammatory activity prediction models, including the partial least square acquired, artificial neural network, and stochastic gradient descent, which showed adequate fitting and predictive performance. Key anti-inflammatory markers, such as aporphine and benzylisoquinoline alkaloids were annotated with confidence level 2. Additionally, the validated prediction models proved to be useful for predicting active extracts using metabolomics data and studying their most bioactive metabolites.

PMID:37540773 | DOI:10.1002/cbdv.202300650

ACS Nano. 2023 Aug 4. doi: 10.1021/acsnano.3c01365. Online ahead of print.

ABSTRACT

Quantum liquids, systems exhibiting effects of quantum mechanics and quantum statistics at macroscopic levels, represent one of the most exciting research frontiers of modern physical science and engineering. Notable examples include Bose-Einstein condensation (BEC), superconductivity, quantum entanglement, and a quantum liquid. However, quantum liquids are usually only stable at cryogenic temperatures, significantly limiting fundamental studies and device development. Here we demonstrate the formation of stable electron-hole liquid (EHL) with the quantum statistic nature at temperatures as high as 700 K in monolayer MoS₂ and elucidate that the high-temperature EHL exists as droplets in sizes of around 100-160 nm. We also develop a thermodynamic model of high-temperature EHL and, based on the model, compile an exciton phase diagram, revealing that the ionized photocarrier drives the gas-liquid transition, which is subsequently validated with experimental results. The high-temperature EHL provides a model system to enable opportunities for studies in the pursuit of other high-temperature quantum liquids. The results can also allow for the development of quantum liquid devices with practical applications in quantum information processing, optoelectronics, and optical interconnections.

PMID:37540772 | DOI:10.1021/acsnano.3c01365

Intern Med J. 2023 Aug 4. doi: 10.1111/imj.16182. Online ahead of print.

ABSTRACT

BACKGROUND: The Victorian prison population is growing and ageing. Little has been documented about this group’s cancer incidence, presentation or treatment.

AIMS: To conduct a retrospective review of Victorian prisoners with cancer, including assessment of change over 15 years and adequacy of treatment delivery.

METHODS: Detailed demographic, cancer and treatment data were collected for all prisoners with malignancy treated at St Vincent’s Hospital Melbourne from 2002 to 2017. Detailed analysis of adherence to Optimal Care Guidelines was undertaken for a subset. Descriptive statistics were used.

RESULTS: We identified 200 cancers in 191 prisoners. The population was predominantly male (185 of 191, 93%), with a median age of 54 years. Rates of cigarette smoking (118 of 191, 59%), mental illness (92 of 191, 46%) and intravenous drug use (59 of 191, 29.5%) were high. Exposure-related cancers predominated (nonmelanoma skin cancer, lung cancer and hepatoma). Most were symptomatic (154 of 191, 77%) and almost one-third had incurable disease at diagnosis (64 of 191, 32%). The number of prisoners with cancer increased over time (2002-2006 [T1], n = 31 vs 2012-2016 [T3], n = 101), as did the median age (45 years in T1 vs 55 years in T3) and rates of mental illness (10 of 31 [32%] in T1 vs 55 of 101 [54%] in T3). Delayed treatment initiation occurred in eight of 12 (66%) assessable patients, largely because of nonattendance.

CONCLUSIONS: Victorian prisoners with cancer are at risk of poor outcomes because of late presentation, delayed treatment initiation and medical comorbidities. Tailored interventions are urgently required to improve the provision of timely, comprehensive cancer care to this vulnerable and growing population.

PMID:37540770 | DOI:10.1111/imj.16182

Am J Occup Ther. 2023 Jul 1;77(4):7704205140. doi: 10.5014/ajot.2023.050150.

ABSTRACT

IMPORTANCE: Outcomes research on the impact of seating and mobility services delivered using a short-term medical mission (STMM) model is limited.

OBJECTIVE: To evaluate the impact of seating and mobility services on the occupational performance of individuals with disabilities in El Salvador.

DESIGN: One-group retrospective pretest-posttest.

SETTING: Clinical (El Salvador).

PARTICIPANTS: Individuals with disabilities in El Salvador.

OUTCOMES AND MEASURES: Survey and the standardized Wheelchair Outcome Measure (WhOM) for those who received a wheelchair as their mobility device.

METHOD: Participants rated satisfaction with performance of preferred in-home and out-of-home occupations on the WhOM before and after receiving seating and mobility services.

RESULTS: For most survey questions assessing the impact on activities of daily living, more than 86% of the respondents selected agree or strongly agree. Nearly half of the respondents reported that questions regarding work and education were not applicable. Participants’ WhOM scores (n = 86) demonstrated a statistically significant improvement in performance satisfaction for both in-home (p < .001; d > 1) and out-of-home (p < .001; d > 1) occupations after they received services, with a huge effect size (d > 2).

CONCLUSIONS AND RELEVANCE: The findings suggest that seating and mobility services provided by rehabilitation professionals in El Salvador improved occupational performance for people with disabilities. Compared with STMMs that solely provide equipment, the findings emphasize the importance of professional service provision with education and training as best practice. What This Article Adds: Seating and mobility services delivered through a STMM model may improve occupational performance for individuals with disabilities. However, STMMs should be carefully planned in collaboration with in-country partners, provide customized seating systems, and include education and training from licensed rehabilitation professionals.

PMID:37540763 | DOI:10.5014/ajot.2023.050150

Am J Occup Ther. 2023 Jul 1;77(4):7704345010. doi: 10.5014/ajot.2023.050247.

ABSTRACT

IMPORTANCE: The coronavirus disease 2019 (COVID-19) pandemic disrupted participation in routines and daily activities. It is unclear how children reengaged in activities during the pandemic, particularly as a new school year began. Differences in school instruction mode (in person, hybrid, or remote) during the pandemic could further affect activity participation.

OBJECTIVE: To examine changes in sedentary and nonsedentary activity participation in children and to determine whether school instruction mode was associated with participation.

SETTING: Home-based survey of U.S. residents.

PARTICIPANTS: Parents of 208 children (46.2% female) between ages 5 and 18 yr were surveyed at two waves: March through April 2020 and October 2020.

OUTCOMES AND MEASURES: Frequency of sedentary (indoor play, electronic device usage) and nonsedentary (outdoor play, leisure and extracurriculars) activity participation was observed. Descriptive and inferential statistics of the changes from Wave 1 to Wave 2 and linear regression were used to determine statistically significant variables associated with activity participation.

RESULTS: Nonsedentary activity participation increased and sedentary activity decreased from Wave 1 to Wave 2. Instruction mode was statistically associated with nonsedentary, but not sedentary, participation. Negative mood, local COVID-19 severity, and household income were also associated with nonsedentary and sedentary participation.

CONCLUSIONS AND RELEVANCE: Children’s participation in sedentary and nonsedentary activities normalized during the new school year; however, many factors likely contributed to these changes. What This Article Adds: Despite differences in school instruction mode and the influence of mental health early in the pandemic, children’s nonsedentary activity participation increased. Occupational therapy practitioners can reinforce the importance of reengaging in activities and regular routines to promote health and well-being during challenging situations.

PMID:37540762 | DOI:10.5014/ajot.2023.050247

Sci Adv. 2023 Aug 4;9(31):eadf3984. doi: 10.1126/sciadv.adf3984. Epub 2023 Aug 4.

ABSTRACT

The glioblastoma (GBM) stem cell-like cells (GSCs) are critical for tumorigenesis/therapeutic resistance of GBM. Mounting evidence supports tumor-promoting function of long noncoding RNAs (lncRNAs), but their role in GSCs remains poorly understood. By combining CRISPRi screen with orthogonal multiomics approaches, we identified a lncRNA DARS1-AS1-controlled posttranscriptional circuitry that promoted the malignant properties of GBM cells/GSCs. Depleting DARS1-AS1 inhibited the proliferation of GBM cells/GSCs and self-renewal of GSCs, prolonging survival in orthotopic GBM models. DARS1-AS1 depletion also impaired the homologous recombination (HR)-mediated double-strand break (DSB) repair and enhanced the radiosensitivity of GBM cells/GSCs. Mechanistically, DARS1-AS1 interacted with YBX1 to promote target mRNA binding and stabilization, forming a mixed transcriptional/posttranscriptional feed-forward loop to up-regulate expression of the key regulators of G₁-S transition, including E2F1 and CCND1. DARS1-AS1/YBX1 also stabilized the mRNA of FOXM1, a master transcription factor regulating GSC self-renewal and DSB repair. Our findings suggest DARS1-AS1/YBX1 axis as a potential therapeutic target for sensitizing GBM to radiation/HR deficiency-targeted therapy.

PMID:37540752 | DOI:10.1126/sciadv.adf3984

Contemp Nurse. 2023 Aug 4:1-18. doi: 10.1080/10376178.2023.2238095. Online ahead of print.

ABSTRACT

BACKGROUND: As Artificial Intelligence and social robots are increasingly used in health and social care, it is imperative to explore the training needs of the workforce, factoring in their cultural background.

OBJECTIVES: Explore views on perceived training needs among professionals around the world and how these related to country cultures.

DESIGN: Cross-sectional, descriptive, mixed-methods international online survey.

METHODS: Descriptive statistical analysis explored the ranking across countries and relationships with three Hofstede cultural dimensions. Thematic analysis was conducted on an open-ended text responses.

RESULTS: A sample of N = 1284 participants from eighteen countries. Knowing the capabilities of the robots was ranked as the top training need across all participating countries and this was also reflected in the thematic analysis. Participants’ culture, expressed through three Hofstede’s dimensions, revealed statistically significant ranking differences.

CONCLUSIONS: Future research should further explore other factors such as the level of digital maturity of the workplace.

IMPACT STATEMENT: Training needs of health and social care staff to use robotics are fast growing and preparation should factor in patient safety and be based on the principles of person- and culture-centred care.

PMID:37540738 | DOI:10.1080/10376178.2023.2238095

PLoS One. 2023 Aug 4;18(8):e0289704. doi: 10.1371/journal.pone.0289704. eCollection 2023.

ABSTRACT

Photoacoustic and absorption spectroscopy imaging are safe and non-invasive molecular quantification techniques, which do not utilize ionizing radiation and allow for repeated probing of samples without them being contaminated or damaged. Here we assessed the potential of these techniques for measuring biochemical parameters. We investigated the statistical association between 31 time and frequency domain features derived from photoacoustic and absorption spectroscopy signals and 19 biochemical blood parameters. We found that photoacoustic and absorption spectroscopy imaging features are significantly correlated with 14 and 17 individual biochemical parameters, respectively. Moreover, some of the biochemical blood parameters can be accurately predicted based on photoacoustic and absorption spectroscopy imaging features by polynomial regression. In particular, the levels of uric acid and albumin can be accurately explained by a combination of photoacoustic and absorption spectroscopy imaging features (adjusted R-squared > 0.75), while creatinine levels can be accurately explained by the features of the photoacoustic system (adjusted R-squared > 0.80). We identified a number of imaging features that inform on the biochemical blood parameters and can be potentially useful in clinical diagnosis. We also demonstrated that linear and non-linear combinations of photoacoustic and absorption spectroscopy imaging features can accurately predict some of the biochemical blood parameters. These results demonstrate that photoacoustic and absorption spectroscopy imaging systems show promise for future applications in clinical practice.

PMID:37540721 | DOI:10.1371/journal.pone.0289704