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BACKGROUND: Validating new algorithms, such as methods to disentangle intrinsic treatment risk from risk associated with experiential learning of novel treatments, often requires knowing the ground truth for data characteristics under investigation. Since the ground truth is inaccessible in real world data, simulation studies using synthetic datasets that mimic complex clinical environments are essential. We describe and evaluate a generalizable framework for injecting hierarchical learning effects within a robust data generation process that incorporates the magnitude of intrinsic risk and accounts for known critical elements in clinical data relationships. METHODS: We present a multi-step data generating process with customizable options and flexible modules to support a variety of simulation requirements. Synthetic patients with nonlinear and correlated features are assigned to provider and institution case series. The probability of treatment and outcome assignment are associated with patient features based on user definitions. Risk due to experiential learning by providers and/or institutions when novel treatments are introduced is injected at various speeds and magnitudes. To further reflect real-world complexity, users can request missing values and omitted variables. We illustrate an implementation of our method in a case study using MIMIC-III data for reference patient feature distributions. RESULTS: Realized data characteristics in the simulated data reflected specified values. Apparent deviations in treatment effects and feature distributions, though not statistically significant, were most common in small datasets (n

This research reports an exploratory study of 22 pre-service teachers involved in the Religious Education courses offered by The University of Notre Dame Australia, as part of the university's accreditation to teach religious education. The study examined the influence of key factors on how confident these pre-service teachers perceived themselves to be to engage with the necessary knowledge to effectively teach religious education in a Catholic school. The pre-service teachers were surveyed pre and post their final-year internship, and subsequently, six of these were interviewed at the end of their first term of employment. Results indicated that out of the five compulsory courses, the two teaching method courses were found to be most influential in developing confidence to teach. Family, religious background, schooling, and mentoring were found to be influential in confidence development. In addition, confidence improved across the timeframe.

Background and Objective: Most evidence about difficult‐to‐treat and severe asthma (DTTA) comes from clinical trials and registries. We aimed to identify people with DTTA from a large nationally representative asthma population and describe their characteristics and healthcare utilization compared with people whose asthma was not 'difficult‐to‐treat'. Methods: We conducted a cross‐sectional survey of Australians aged ≥18 years with current asthma from large web‐based survey panels. Enrolment was stratified by gender, age‐group and state/territory based on national population data for people with asthma. Difficult‐to‐treat or severe asthma was defined by poor symptom control, exacerbations and/or oral corticosteroid/biologic use despite medium/high‐dose inhaled therapy. Outcomes included exacerbations, healthcare utilization, multimorbidity, quality of life and coronavirus disease of 2019 (COVID‐19)‐related behaviour. Weighted data were analysed using SAS version 9.4. Results: The survey was conducted in February–March 2021. The weighted sample comprised 6048 adults with current asthma (average age 47.3 ± SD 18.1 years, 59.9% female), with 1313 (21.7%) satisfying ≥1 DTTA criteria. Of these, 50.4% had very poorly controlled symptoms (Asthma Control Test ≤15), 36.2% were current smokers, and 85.4% had ≥1 additional chronic condition, most commonly anxiety/depression. More than twice as many participants with DTTA versus non‐DTTA had ≥1 urgent general practitioner (GP) visit (61.4% vs. 27.5%, OR 4.8 [4.2–5.5, p < 0.0001]), or ≥1 emergency room visit (41.9% vs. 17.9%, OR 3.8 [3.3–4.4, p < 0.0001]) in the previous 12 months. Conclusion: Our findings emphasize the burden of uncontrolled symptoms, current smoking, multimorbidity and healthcare utilization in people with DTTA in the community, who may be under‐represented in registries or clinical trials. In this cross‐sectional study of a nationally‐representative population of 6048 adults with current asthma, 21.7% had difficult‐to‐treat asthma. Burden for patients and health system was seen in poor general health status, poor asthma symptom control, frequent urgent GP and emergency department (ED)/hospital visits and high prevalence of multimorbidity, particularly anxiety and/or depression. See relatededitorial [ABSTRACT FROM AUTHOR]

Simple Summary: Congenital malformations of the equine caudal cervical vertebrae (C6 and C7) were first reported in the 1800s. However, by the 21st century these findings were no longer incidental, especially with studies reporting breed percentages as high as 38%. Therefore, this study examined the association between C6 osseous specimens (n = 85) demonstrating the congenital malformation of either a partial unilateral or bilateral absent ventral process and the transposition on the ventral surface of sequential C7s (44/85). The aim was to determine if the absent morphology on C6 corresponded to the transposition on C7 and in some cases replication of a transverse foramen (33/44). Findings revealed the larger morphological absence on C6 generated a stronger dependency for transposition on C7 that included the replication of a transverse foramen. The transposition on C7 was characterized by either a complete or incomplete likeness of the C6 ventral process. Complete transpositions on C7 appeared as a normal C6 ventral process, while incomplete transpositions appeared in most as a cranial ventral tubercle (CrVT). When complete bilateral transpositions were demonstrated, the morphology of C7 resembled C6. These findings are relevant to the reading of radiographic images and potential clinical findings. In recent years, equine complex vertebral malformation (ECVM) has been of concern in the equine community, with studies identifying numerous associative morphological variations. Here, we examine the morphological association between C6 and C7 for dependency in ECVM cases, where the partially absent ventral process of C6 transposes on the ventral surface of C7. A C6 ventral process presents two tubercles, one cranial (CrVT) and one caudal (CVT). In this study, the C6 osseous specimens (n = 85) demonstrated a partial or completely absent CVT (aCVT) graded 1–4 that often extended cranially creating a partially absent cranial ventral tubercle (aCrVT) graded 1–3. In the 85 C6 osseous specimens examined, the corresponding C7s demonstrated either a complete or incomplete transposition of the ventral process from C6 in 44/85, with 30/44 replicating a transverse foramen. A strong statistical dependency existed between C6 grade 4 aCVTs and grades 1–3 aCrVTs and C7 transpositions with replicated transverse foramen. Sidedness was also demonstrated, where a left sided absent C6 associated with transposition on the left ventral surface of C7. This likewise applied to right sidedness and most bilateral cases. These findings might benefit practitioners when radiographing the extent of the ECVM configuration in patients presenting caudal cervical pain. [ABSTRACT FROM AUTHOR]

Introduction The pitfalls of label leakage, contamination of model input features with outcome information, are well established. Unfortunately, avoiding label leakage in clinical prediction models requires more nuance than the common advice of applying "no time machine rule." Framework We provide a framework for contemplating whether and when model features pose leakage concerns by considering the cadence, perspective, and applicability of predictions. To ground these concepts, we use real-world clinical models to highlight examples of appropriate and inappropriate label leakage in practice. Recommendations Finally, we provide recommendations to support clinical and technical stakeholders as they evaluate the leakage tradeoffs associated with model design, development, and implementation decisions. By providing common language and dimensions to consider when designing models, we hope the clinical prediction community will be better prepared to develop statistically valid and clinically useful machine learning models. [ABSTRACT FROM AUTHOR]

Background and Objective: Breathlessness is prevalent and associated with medical consequences. Obesity is related to breathlessness. However, the magnitude of its contribution has not been clearly documented. This investigation aimed to determine the contribution of obesity to breathlessness by estimating the population attributable fraction (PAF) in a representative sample of Australian adults. Methods: A cross‐sectional, nationally representative survey of Australian residents aged ≥18 years was conducted in October 2019. Breathlessness was defined as modified Medical Research Council (mMRC) dyspnoea scale grade ≥2. BMI was calculated from self‐reported height and weight. Adjusted relative risks (aRRs) were estimated using a generalized linear model with Poisson distribution, adjusted for age group and/or participant‐reported diagnosed illnesses. Adjusted PAFs were estimated using aRR and obesity prevalence in Australian adults. Results: Among those who completed the National Breathlessness Survey, 9769 participants (51.4% female) were included in the analysis; 28.1% of participants were obese. The prevalence of breathlessness was 9.54%. The aRR of obesity for breathlessness was 2.04, adjusted for age. Adjusting for various co‐morbid conditions, the aRR was slightly attenuated to around 1.85–1.98. The PAF, adjusted only for age, was 24.6% (95% CI 20.1–29.1) and after further adjustment for co‐morbid conditions, the PAF ranged from 21.1% to 23.6%. Obesity accounted for a higher proportion of breathlessness in women than in men. Conclusion: Our results demonstrate that obesity accounts for around a quarter of breathlessness symptoms in Australian adults. This has important implications for health policy in light of the global trend in increasing obesity. [ABSTRACT FROM AUTHOR]

This research reports an exploratory study of 22 pre-service teachers involved in the Religious Education courses offered by The University of Notre Dame Australia, as part of the university's accreditation to teach religious education. The study examined the influence of key factors on how confident these pre-service teachers perceived themselves to be to engage with the necessary knowledge to effectively teach religious education in a Catholic school. The pre-service teachers were surveyed pre and post their final-year internship, and subsequently, six of these were interviewed at the end of their first term of employment. Results indicated that out of the five compulsory courses, the two teaching method courses were found to be most influential in developing confidence to teach. Family, religious background, schooling, and mentoring were found to be influential in confidence development. In addition, confidence improved across the timeframe. [ABSTRACT FROM AUTHOR]

Educational practices to reduce negative attitudes toward persons with substance use disorders (SUD) are urgently needed for undergraduate nursing students, but few studies have examined their long term effectiveness. In this pilot, consenting students completed the Drug and Drug Problems Perception Questionnaire (DDPPQ) anonymously online, before and 1 year after integrated curricular content about SUD. Pretest scores were significantly higher than posttest, indicating higher negative attitudes toward persons with SUD before the integrated content. Time main effect was statistically significant. To our knowledge, this is the first report examining long-term effects of an educational intervention with reinforcement in multiple courses over time upon the attitudes of undergraduate nursing students toward persons with SUD. [ABSTRACT FROM AUTHOR]

The historical evolution of the rehabilitation profession is addressed, and current issues facing rehabilitation educators and professionals are identified. Clearly, both our practice environments and our consumers are continuously evolving and becoming more diverse. Simultaneously, a need exists to be seen as a stable, unified profession. Specific issues including the continuing development of private rehabilitation licensure and accreditation, increasing consumer diversity, and movement toward evidence-based practices are identified as critical issues for rehabilitation educators and professionals. [ABSTRACT FROM AUTHOR]