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Nevin Manimala Statistics

A systematic literature review of predicting patient discharges using statistical methods and machine learning

Health Care Manag Sci. 2024 Jul 22. doi: 10.1007/s10729-024-09682-7. Online ahead of print.

ABSTRACT

Discharge planning is integral to patient flow as delays can lead to hospital-wide congestion. Because a structured discharge plan can reduce hospital length of stay while enhancing patient satisfaction, this topic has caught the interest of many healthcare professionals and researchers. Predicting discharge outcomes, such as destination and time, is crucial in discharge planning by helping healthcare providers anticipate patient needs and resource requirements. This article examines the literature on the prediction of various discharge outcomes. Our review discovered papers that explore the use of prediction models to forecast the time, volume, and destination of discharged patients. Of the 101 reviewed papers, 49.5% looked at the prediction with machine learning tools, and 50.5% focused on prediction with statistical methods. The fact that knowing discharge outcomes in advance affects operational, tactical, medical, and administrative aspects is a frequent theme in the papers studied. Furthermore, conducting system-wide optimization, predicting the time and destination of patients after discharge, and addressing the primary causes of discharge delay in the process are among the recommendations for further research in this field.

PMID:39037567 | DOI:10.1007/s10729-024-09682-7

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Nevin Manimala Statistics

Gd-GQDs as nanotheranostic platform for the treatment of HPV-positive oropharyngeal cancer

Med Oncol. 2024 Jul 22;41(8):205. doi: 10.1007/s12032-024-02431-4.

ABSTRACT

In this study, we developed new gadolinium-graphene quantum dot nanoparticles (Gd-GQDs) as a theranostic platform for magnetic resonance imaging and improved the efficiency of radiotherapy in HPV-positive oropharyngeal cancer. Based on cell toxicity results, Gd-GQD NPs were nontoxic for both cancer and normal cell lines up to 25 µg/ml. These NPs enhance the cytotoxic effect of radiation only on cancer cells but not on normal cells. The flow cytometry analysis indicated that cell death mainly occurred in the late phase of apoptosis. The immunocytochemical analysis was used to evaluate apoptosis pathway proteins. The Bcl-2 and p53 protein levels did not differ statistically significantly between radiation alone group and those that received irradiation in combination with NPs. In contrast, the combination group exhibited a significant increase in Bax protein expression, suggesting that cells could undergo apoptosis independent of the p53 pathway. Magnetic resonance (MR) imaging showed that Gd-GQD NPs, when used at low concentrations, enhanced T1-weighted signal intensity resulting from T1 shortening effects. At higher concentrations, the T2 shortening effect became predominant and was able to decrease the signal intensity. Gd-GQD appears to offer a novel approach for enhancing the effectiveness of radiation treatment and facilitating MR imaging for monitoring HPV-positive tumors.

PMID:39037549 | DOI:10.1007/s12032-024-02431-4

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Nevin Manimala Statistics

Comparison of endoscopic decompression to open laminectomy in patients with thoracic ossified ligamentum flavum – a systematic review and meta-analysis

Neurosurg Rev. 2024 Jul 22;47(1):345. doi: 10.1007/s10143-024-02591-x.

ABSTRACT

In recent years, there has been growing interest in an alternative approach for treating TOLF, such as endoscopic decompression, which minimizes the disruption of surrounding tissues. It is important to understand the advantages, disadvantages, and potential differences in outcomes associated with each approach. This comparative study aims to evaluate and contrast the effectiveness, safety, and outcomes of these two surgical techniques, open laminectomy and endoscopic decompression, in the management of thoracic OLF. The literature review was conducted on Embase, PubMed, Scopus and Google Scholar databases. After a thorough screening of all search results, 14 studies were shortlisted, from which data was extracted, and statistical analysis was done. Pooled analysis was done to ascertain the intra-operative and post-operative outcomes after surgery for TOLF. Overall, 351 patients were included in the study for evaluation. 174 patients were operated on by open laminectomy, and 177 patients were seen in the endoscopy group. Decreased operative time was seen in the endoscopic subgroup. The mean length of hospital stay of 6.6 days. Both groups showed improvement in mJOA and VAS score. The recovery rate for the reported study cohort was 66.8%, with the Endoscopic surgical approach showing a positive correlation with the mean recovery rate. The dural tear was the most common complication, with a rate of 6.6%. The mean estimated infection rate was 2.7% and postoperative CSF leak was 3.7%, with a trend of significantly higher rates in the open subgroup. Both of the groups showed improvement in functional scores, VAS scores, and cross-sectional area. However, the Endoscopic decompression group experienced reduced hospital stays, operating times, and intraoperative blood loss. The most frequent side effects were CSF leak and dural tear. A few cases showed revision and infection. None of the problems differed between the groups.

PMID:39037535 | DOI:10.1007/s10143-024-02591-x

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Nevin Manimala Statistics

Phylogeny predicts sensitivity in aquatic animals for only a minority of chemicals

Ecotoxicology. 2024 Jul 22. doi: 10.1007/s10646-024-02791-7. Online ahead of print.

ABSTRACT

There are substantial gaps in our empirical knowledge of the effects of chemical exposure on aquatic life that are unlikely to be filled by traditional laboratory toxicity testing alone. One possible alternative of generating new toxicity data is cross-species extrapolation (CSE), a statistical approach in which existing data are used to predict the effect of a chemical on untested species. Some CSE models use relatedness as a predictor of chemical sensitivity, but relatively little is known about how strongly shared evolutionary history influences sensitivity across all chemicals. To address this question, we conducted a survey of phylogenetic signal in the toxicity data from aquatic animal species for a large set of chemicals using a phylogeny inferred from taxonomy. Strong phylogenetic signal was present in just nine of thirty-six toxicity datasets, and there were no clear shared properties among those datasets with strong signal. Strong signal was rare even among chemicals specifically developed to target insects, meaning that these chemicals may be equally lethal to non-target taxa, including chordates. When signal was strong, distinct patterns of sensitivity were evident in the data, which may be informative when assembling toxicity datasets for regulatory use. Although strong signal does not appear to manifest in aquatic toxicity data for most chemicals, we encourage additional phylogenetic evaluations of toxicity data in order to guide the selection of CSE tools and as a means to explore the patterns of chemical sensitivity across the broad diversity of life.

PMID:39037520 | DOI:10.1007/s10646-024-02791-7

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Nevin Manimala Statistics

Current Status of Hospitalist Practice and Factors Influencing Job Satisfaction in Korea

J Gen Intern Med. 2024 Jul 22. doi: 10.1007/s11606-024-08910-8. Online ahead of print.

ABSTRACT

BACKGROUND: Although the roles and responsibilities of hospitalists have grown considerably in recent years, research on the current job status and satisfaction levels of Korean hospitalists is lacking.

OBJECTIVE: We investigate the present state of Korean hospitalists and the factors influencing their job satisfaction 6 years after the pilot program’s launch.

DESIGN: This cross-sectional analysis was based on an online survey conducted from January 30 to February 18, 2023.

PARTICIPANTS: Korean hospitalists (N = 303) MAIN MEASURES: The survey encompassed participant demographics, hospital information, education, clinical practice, research involvement, and job satisfaction. We employed multiple logistic regression analyses to identify determinants of satisfaction as a hospitalist.

KEY RESULTS: The analysis was based on 79 hospitalists’ responses (response rate 26%). Respondents had a median age of 39 years; approximately half were male internal medicine specialists, possessing over 3 years of hospitalist experience. Most respondents were interested in clinical work (94.4%), with only 21.5% interested in research and evidence-based medicine. Over two-thirds indicated that non-clinical duties occupied less than 20% of their time. Overall, job satisfaction among hospitalists averaged 51.9%. Notably, the availability of a research mentor was significantly associated with job satisfaction (P = .011). While hospitalists with more than 3 years of experience, more hospitalists per facility, and autonomy were associated with increased job satisfaction, these associations were not statistically significant. Furthermore, there was no association between night shift work, work type, or work hours and job satisfaction.

CONCLUSIONS: Although Korean hospitalists primarily focus on clinical practice, our study underscores the positive impact of mentorship from research mentors on job satisfaction, supported by comprehensive univariate and multivariate analyses. These findings signal a progressive transformation in the role of Korean hospitalists, as they increasingly engage in research alongside patient care.

PMID:39037519 | DOI:10.1007/s11606-024-08910-8

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Nevin Manimala Statistics

Cross-disciplinary advance care planning in oncology and palliative care amidst a pandemic: a best practice implementation project

JBI Evid Implement. 2024 Jul 23. doi: 10.1097/XEB.0000000000000445. Online ahead of print.

ABSTRACT

INTRODUCTION: Advance care planning (ACP) ensures that patients receive medical care aligned with their values, goals, and preferences, especially regarding end-of-life decisions in serious chronic illnesses.

OBJECTIVE: This project aimed to introduce and promote evidence-based ACP in oncology and palliative care at a midsized hospital near Berlin, Germany, during the COVID-19 pandemic.

METHODS: This project was guided by the JBI Evidence Implementation Framework and used a mixed methods audit cycle. A baseline audit was conducted using qualitative interviews and workshops with representatives from all the health care disciplines involved in oncology and palliative care at the hospital. The findings were compared with eight best practice recommendations. Targeted strategies aimed at the key stakeholders involved in ACP practice were then implemented. Finally, a semi-quantitative questionnaire was used in a follow-up audit with the same participants as in the baseline audit.

RESULTS: The baseline audit revealed a high level of familiarity with the concept of ACP. However, there was a lack of a uniformly accepted definition and understanding of ACP among the health care professionals, leading to a lack of coordination in task distribution. The follow-up audit revealed improvements with regard to education and training in ACP (Criterion 1: 50% to 100%) and organizational support to facilitate ACP conversations (Criterion 3: 87.5% to 100%). Other audit criteria compliance rates remained unchanged.

CONCLUSION: Clinical education and team-based process analysis can facilitate ACP implementation across disciplines in oncology and palliative care facilities. However, the project did not succeed in implementing lasting changes in clinical processes and best practice ACP due to the COVID-19 pandemic. Such an endeavor would demand considerable resources and time, both of which were constrained during the pandemic.

SPANISH ABSTRACT: http://links.lww.com/IJEBH/A236.

PMID:39036875 | DOI:10.1097/XEB.0000000000000445

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Nevin Manimala Statistics

Risk Factors of Poststroke Cognitive Impairment: A Meta-Analysis

Vasc Endovascular Surg. 2024 Jun 18:15385744241259700. doi: 10.1177/15385744241259700. Online ahead of print.

ABSTRACT

OBJECTIVE: To explore the potential risk factors of post stroke cognitive impairment (PSCI) by conducting a meta-analysis.

METHODS: Literature search was performed in databases (PubMed, Embase, Web of Science, CNKI) using keywords of PSCI. Cochrane ROB tool was adopted for evaluating the quality of the included studies. Afterwards, data was independently extracted by 2 investigators. Heterogeneity was quantified across studies by Chi-squared-based Q statistic test and I2 statistic. The random-effects model or fixed-effects model was employed to compute the pooled estimates depends on whether the heterogeneity was significant (I2 > 50% or P < .05) or not. Publication bias was evaluated by the funnel plot and Egger’s test. Sensitivity analysis was accomplished through eliminating studies 1 at a time to evaluate the stability of the pooled estimates.

RESULTS: 23 high-quality studies with 13322 patients were included. Compared with patients with no cognitive impairment, PSCI was more likely to develop in the elderly (pooled MD = 3.58, 95% CI = [1.82, 5.34]), female (pooled RR = 1.23, 95% CI = [1.07, 1.41]), or less-educated (pooled MD = -1.63, 95% CI = [-2.96, -.31]) patients with a history of hypertension (pooled RR = 1.07, 95% CI = [1.03, 1.11]), diabetes mellitus (pooled RR = 1.10, 95% CI = [1.03, 1.17]), atrial fibrillation (pooled RR = 1.38, 95% CI = [1.10, 1.74]), or stroke (pooled RR = 1.36, 95% CI = [1.09, 1.70]). Smoking did not affect the development of PSCI in patients (pooled RR = .96, 95% CI = [.78, 1.19]). Ischemic heart disease and region represented the sources of significant heterogeneity across studies. The pooled estimates were robust, and no publication bias was seen.

CONCLUSION: Age, gender, education, hypertension, diabetes mellitus, atrial fibrillation, and stroke were the risk factors of PSCI. Controlling these risk factors can help prevent PSCI.

PMID:39036866 | DOI:10.1177/15385744241259700

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Nevin Manimala Statistics

Bipedalism or bipedalisms: The os coxae of StW 573

J Anat. 2024 Jul 22. doi: 10.1111/joa.14106. Online ahead of print.

ABSTRACT

There has been a long debate about the possibility of multiple contemporaneous species of Australopithecus in both eastern and southern Africa, potentially exhibiting different forms of bipedal locomotion. Here, we describe the previously unreported morphology of the os coxae in the 3.67 Ma Australopithecus prometheus StW 573 from Sterkfontein Member 2, comparing it with variation in ossa coxae in living humans and apes as well as other Plio-Pleistocene hominins. Statistical comparisons indicate that StW 573 and 431 resemble humans in their anteroposteriorly great iliac crest breadth compared with many other early australopiths, whereas Homo ergaster KNM WT 15000 surprisingly also has a relatively anterioposteriorly short iliac crest. StW 573 and StW 431 appear to resemble humans in having a long ischium compared with Sts 14 and KNM WT 15000. A Quadratic Discriminant Function Analysis of morphology compared with other Plio-Pleistocene hominins and a dataset of modern humans and hominoids shows that, while Lovejoy’s heuristic model of the Ardipithecus ramidus os coxae falls with Pongo or in an indeterminate group, StW 573 and StW 431 from Sterkfontein Member 4 are consistently classified together with modern humans. Although clearly exhibiting the classic “basin shaped” bipedal pelvis, Sts 14 (also from Sterkfontein), AL 288-1 Australopithecus afarensis, MH2 Australopithecus sediba and KNM-WT 15000 occupy a position more peripheral to modern humans, and in some analyses are assigned to an indeterminate outlying group. Our findings strongly support the existence of two species of Australopithecus at Sterkfontein and the variation we observe in os coxae morphology in early hominins is also likely to reflect multiple forms of bipedality.

PMID:39036860 | DOI:10.1111/joa.14106

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Nevin Manimala Statistics

Adverse Childhood Experiences Among Adolescents With Body Dysmorphic Disorder: Frequency and Clinical Correlates

Clin Psychol Psychother. 2024 Jul-Aug;31(4):e3028. doi: 10.1002/cpp.3028.

ABSTRACT

Increasing empirical attention has been given to the role of adverse childhood experiences (ACEs) in the development and maintenance of body dysmorphic disorder (BDD). Yet, current research has predominantly focused on adult and nonclinical BDD samples, and little is known about relevance of ACEs in adolescent BDD. The present study examined (a) the frequency of ACEs in adolescents with a primary diagnosis of BDD (n = 50) versus obsessive compulsive disorder (OCD) (n = 50) and (b) the clinical profile of ACE-exposed youth with BDD. ACEs were ascertained through a systematic search of electronic patient records, as well as through a parent- and self-report screening item for exposure to traumatic events. Results showed higher rate of peer victimisation (74% vs. 38%) and child maltreatment (44% vs. 24%) among BDD versus OCD youths; sexual abuse was the most common type of child maltreatment documented in the BDD group (28%) according to patient records. Parent-reported exposure to traumatic events was also significantly higher in the BDD than the OCD group (40% vs. 18%, respectively). Clinical presentation and treatment outcomes did not differ between those with versus without a history of ACEs. The current study is the first to demonstrate that a range of ACEs are common in adolescent BDD. Our findings highlight the importance of screening for these experiences. Although further research is needed, our findings also indicate that adolescents with BDD who have a history of ACEs are broadly similar in their clinical presentation to those without, and benefit from BDD-focused treatment.

PMID:39036850 | DOI:10.1002/cpp.3028

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Nevin Manimala Statistics

Enhancing GaN Nanowires Performance Through Partial Coverage with Oxide Shells

Small. 2024 Jul 22:e2401139. doi: 10.1002/smll.202401139. Online ahead of print.

ABSTRACT

Core-shell gallium nitride (GaN)-based nanowires offer noteworthy opportunities for innovation in high-frequency opto- and microelectronics. This work delves deeply into the physical properties of crystalline GaN nanowires with aluminum and hafnium oxide shells. Particular attention is paid to partial coverage of nanowires, resulting with exceptional properties. First, the crystal lattice relaxation is observed by X-ray diffraction, photoluminescence, and Raman spectroscopy measurements. A high potential of partial coverage for optoelectronic applications is revealed with photo- and cathodoluminescence spectra along with an exploration of their temperature dependency. Next, the study focuses on understanding the mechanisms behind the observed enhancement of the luminescence efficiency. It is confirmed that nanowires are effectively protected against photoadsorption using partial coatings. This research advances the frontiers of nanotechnology, investigating the benefits of partial coverage, and shedding light on its complex interaction with cores.

PMID:39036823 | DOI:10.1002/smll.202401139