Measurement of Three-Dimensional Back Shape of Normal Adults Using a Novel Three-Dimensional Imaging Mobile Surface Topography System (MSTS): An Intra- and Inter-Rater Reliability Study.

Postural and spinal deformities are major contributing factors to musculoskeletal (MSK) disorders. Posture screening and assessment can help to identify early morphological deformities, thereby preventing progression and reducing or correcting them with effective treatments. The study evaluates both intra- and inter-repeatability of using a mobile structured light sensor with a structured light pattern for building an accurate 3D human model and its use in postural screening. 16 young males (age: 25 ± 5.6 years, height: 172 ± 5.3 cm, mass: 69 ± 8.6 kg) participated without any musculoskeletal pain or pre-existing leg or spinal abnormalities. An iPad-based 3D mobile scanning tool, Structure SensorTM (2018 version), was used to capture the participants' back and whole-body shape. The collected data (3D model) were realigned and processed in the open-source software, Netfabb BasicTM (7.2 version). For each participant, five trained raters individually measured three trials of standing back and body posture on two separate occasions to calculate both intra- and inter-rater reliability. With the use of this software, nine postural variables and angular displacements were individually measured by the raters. The results indicated good to excellent intra-rater and good to moderate inter-rater reliability for measuring 78% (7 out of 9) of postural variables with an ICC ranging from 0.70 to 0.98. The remaining 22% of variables (2 out of 9; lateral pelvic tilt and right frontal knee angle) showed moderate to low inter- and intra-rater reliability, with ICCs ranging from 0.26 to 0.79.

Enhancing upper-limb neurorehabilitation in chronic stroke survivors using combined action observation and motor imagery therapy.

Introduction: For people who have had a stroke, recovering upper-limb function is a barrier to independence. When movement is difficult, mental practice can be used to complement physical therapy. In this within-participants study we investigated the effects of combined action observation and motor imagery (AO + MI) therapy on upper-limb recovery in chronic stroke survivors. Methods: A Graeco-Latin Square design was used to counterbalance four mental practice conditions (AO + MI, AO, MI, Control) across four cup-stacking tasks of increasing complexity. Once a week, for five consecutive weeks, participants (n = 10) performed 16 mental practice trials under each condition. Each trial displayed a 1st person perspective of a cup-stacking task performed by an experienced model. For AO, participants watched each video and responded to an occasional color cue. For MI, participants imagined the effort and sensation of performing the action; cued by a series of still-images. For combined AO + MI, participants observed a video of the action while they simultaneously imagined performing the same action in real-time. At three time points (baseline; post-test; two-week retention test) participants physically executed the three mentally practiced cup-stacking tasks, plus a fourth unpractised sequence (Control), as quickly and accurately as possible. Results: Mean movement execution times were significantly reduced overall in the post-test and the retention test compared to baseline. At retention, movement execution times were significantly shorter for combined AO + MI compared to both MI and the Control. Individual participants reported clinically important changes in quality of life (Stroke Impact Scale) and positive qualitative experiences of AO + MI (social validation). Discussion: These results indicate that when physical practice is unsuitable, combined AO + MI therapy could offer an effective adjunct for neurorehabilitation in chronic stroke survivors.

Major adverse cardiac events after elective infrarenal endovascular aortic aneurysm repair.

OBJECTIVE: There is a significant cardiac morbidity and mortality after endovascular aneurysm repair (EVAR). However, information about long-term risk of cardiac events after EVAR and potential predictors is lacking. Therefore, the aim of this study was to determine incidence and predictors of major adverse cardiac events (MACE) at 1 and 5 years after elective EVAR for infrarenal abdominal aortic aneurysms. METHODS: Baseline, perioperative, and postoperative information of 320 patients was evaluated. The primary outcome was the incidence of MACE after EVAR, which was defined as acute coronary syndrome, unstable angina pectoris, de novo atrial fibrillation, hospitalization for heart failure, mitral valve insufficiency, revascularization (including percutaneous coronary intervention and coronary artery bypass grafting), as well as cardiovascular and noncardiovascular death. Kaplan-Meier analyses were performed to determine incidences of MACE, MACE excluding noncardiovascular death and cardiac events by excluding noncardiovascular and vascular death from MACE. Predictors of MACE were identified using univariate and multivariate binary regression analysis. RESULTS: Through 1 and 5 years of follow-up after EVAR, freedom from MACE was 89.4% (standard error [SE], 0.018) and 59.8% (SE, 0.033), freedom from MACE excluding noncardiovascular death was 94.7% (SE, 0.013) and 77.5% (SE, 0.030) and freedom from cardiac events was 96.0% (SE, 0.011) and 79.1% (SE, 0.030), respectively. Predictors for MACE within 1 year were American Society of Anesthesiologists (ASA) score of III or IV (odds ratio [OR], 3.17; 95% confidence interval [CI], 1.52-6.59) and larger abdominal aortic diameter (OR, 1.04; 95% CI, 1.01-1.08). A history of atrial fibrillation (OR, 0.14; 95% CI, 0.03-0.60) was a negative predictor factor. Predictors for MACE through 5 years were a history of heart failure (OR, 4.10; 95% CI 1.36-12.32) and valvular heart disease (OR, 2.31; 95% CI, 0.97-5.51), American Society of Anesthesiologists score of 3 or 4 (OR, 1.66; 95% CI, 0.96-2.88), and older age (OR, 1.04; 95% CI, 1.01-1.08). CONCLUSIONS: MACE is a common complication during the first 5 years after elective EVAR. Cardiac diseases at baseline are strong predictors for long-term MACE and potentially helpful in optimizing future postoperative long-term follow-up.

Evidence-informed practice: simplifying and applying the concept for nursing students and academics.

BACKGROUND: Nurses' ability to apply evidence effectively in practice is a critical factor in delivering high-quality patient care. Evidence-based practice (EBP) is recognised as the gold standard for the delivery of safe and effective person-centred care. However, decades following its inception, nurses continue to encounter difficulties in implementing EBP and, although models for its implementation offer stepwise approaches, factors, such as the context of care and its mechanistic nature, act as barriers to effective and consistent implementation. It is, therefore, imperative to find a solution to the way evidence is applied in practice. Evidence-informed practice (EIP) has been mooted as an alternative to EBP, prompting debate as to which approach better enables the transfer of evidence into practice. Although there are several EBP models and educational interventions, research on the concept of EIP is limited. This article seeks to clarify the concept of EIP and provide an integrated systems-based model of EIP for the application of evidence in clinical nursing practice, by presenting the systems and processes of the EIP model. Two scenarios are used to demonstrate the factors and elements of the EIP model and define how it facilitates the application of evidence to practice. The EIP model provides a framework to deliver clinically effective care, and the ability to justify the processes used and the service provided by referring to reliable evidence.

A neural signature for combined action observation and motor imagery? An fNIRS study into prefrontal activation, automatic imitation, and self-other perceptions.

INTRODUCTION: Research indicates that both observed and imagined actions can be represented in the brain as two parallel sensorimotor representations. One proposal is that higher order cognitive processes would align these two hypothetical action simulations. METHODS: We investigated this hypothesis using an automatic imitation paradigm, with functional near-infrared spectroscopy recordings over the prefrontal cortex during different motor simulation states. On each trial, participants (n = 14) observed a picture of a rhythmical action (instructed action) followed by a distractor movie showing the same or different action. Participants then executed the instructed action. Distractor actions were manipulated to be fast or slow, and instructions were manipulated during distractor presentation: action observation (AO), combined action observation and motor imagery (AO+MI) and observe to imitate (intentional imitation). A pure motor imagery (MI) condition was also included. RESULTS: Kinematic analyses showed that although distractor speed effects were significant under all instructions (shorter mean cycle times in execution for fast compared to slow trials), this imitation bias was significantly stronger for combined AO+MI than both AO and MI, and stronger for intentional imitation than the other three automatic imitation conditions. In the left prefrontal cortex, cerebral oxygenation was significantly greater for combined AO+MI than all other instructions. Participants reported that their representation of the self overlapped with the observed model significantly more during AO+MI than AO. CONCLUSION: Left prefrontal activation may therefore be a neural signature of AO+MI, supporting attentional switching between concurrent representations of self (MI, top-down) and other (AO, bottom-up) to increase imitation and perceived closeness.

Evidence-informed practice versus evidence-based practice educational interventions for improving knowledge, attitudes, understanding, and behavior toward the application of evidence into practice: A comprehensive systematic review of UG student.

Background: To produce graduates with strong knowledge and skills in the application of evidence into healthcare practice, it is imperative that all undergraduate health and social care students are taught, in an efficient manner, the processes involved in applying evidence into practice. The two main concepts that are linked to the application of evidence into practice are "evidence-based practice" and "evidence-informed practice." Globally, evidence-based practice is regarded as the gold standard for the provision of safe and effective healthcare. Despite the extensive awareness of evidence-based practice, healthcare practitioners continue to encounter difficulties in its implementation. This has generated an ongoing international debate as to whether evidence-based practice should be replaced with evidence-informed practice, and which of the two concepts better facilitate the effective and consistent application of evidence into healthcare practice. Objectives: The primary objective of this systematic review was to evaluate and synthesize literature on the effectiveness of evidence-informed practice versus evidence-based practice educational interventions for improving knowledge, attitudes, understanding, and behavior of undergraduate health and social care students toward the application of evidence into practice. Specifically, we planned to answer the following research questions: (1) Is there a difference (i.e., difference in content, outcome) between evidence-informed practice and evidence-based practice educational interventions? (2) Does participating in evidence-informed practice educational interventions relative to evidence-based practice educational interventions facilitate the application of evidence into practice (as measured by, e.g., self-reports on effective application of evidence into practice)? (3) Do both evidence-informed practice and evidence-based practice educational interventions targeted at undergraduate health and social care students influence patient outcomes (as measured by, e.g., reduced morbidity and mortality, absence of nosocomial infections)? (4) What factors affect the impact of evidence-informed practice and evidence-based practice educational interventions (as measured by, e.g., course content, mode of delivery, multifaceted interventions, standalone intervention)? Search Methods: We utilized a number of search strategies to identify published and unpublished studies: (1) Electronic databases: we searched Academic Search Complete, Academic search premier, AMED, Australian education index, British education index, Campbell systematic reviews, Canada bibliographic database (CBCA Education), CINAHL, Cochrane Library, Database of Abstracts of Reviews on Effectiveness, Dissertation Abstracts International, Education Abstracts, Education complete, Education full text: Wilson, ERIC, Evidence-based program database, JBI database of systematic reviews, Medline, PsycInfo, Pubmed, SciELO (Scientific Electronic Library Online), and Scopus; (2) A web search using search engines such as Google and Google scholar; (3) Grey literature search: we searched OpenGrey (System for Information on Grey Literature in Europe), System for information on Grey Literature, the Society for Research on Educational Effectiveness, and Virginia Henderson Global Nursing e-Repository; (4) Hand searching of journal articles; and (5) Tracking bibliographies of previously retrieved studies. The searches were conducted in June 2019. Selection Criteria: We planned to include both quantitative (including randomized controlled trials, non-randomized controlled trials, quasi-experimental, before and after studies, prospective and retrospective cohort studies) and qualitative primary studies (including, case series, individual case reports, and descriptive cross-sectional studies, focus groups, and interviews, ethnography, phenomenology, and grounded theory), that evaluate and compare the effectiveness of any formal evidence-informed practice educational intervention to evidence-based practice educational intervention. The primary outcomes were evidence-informed practice and evidence-based practice knowledge, attitudes, understanding, and behavior. We planned to include, as participants, undergraduate pre-registration health and social care students from any geographical area. Data Collection and Analysis: Two authors independently screened the search results to assess articles for their eligibility for inclusion. The screening involved an initial screening of the title and abstracts, and subsequently, the full-text of selected articles. Discrepancies were resolved through discussion or consultation with a third author. We found no article eligible for inclusion in this review. Main Results: No studies were found which were eligible for inclusion in this review. We evaluated and excluded 46 full-text articles. This is because none of the 46 studies had evaluated and compared the effectiveness of evidence-informed practice educational interventions with evidence-based practice educational interventions. Out of the 46 articles, 45 had evaluated solely, the effectiveness of evidence-based practice educational interventions and 1 article was on evidence-informed practice educational intervention. Hence, these articles were excluded as they did not meet the inclusion criteria. Authors' Conclusions: There is an urgent need for primary studies evaluating the relative effectiveness of evidence-informed practice and evidence-based practice educational interventions targeted at improving undergraduate healthcare students' competencies regarding the application of evidence into practice. Such studies should be informed by current literature on the concepts (i.e., evidence-informed practice and evidence-based practice) to identify the differences, similarities, as well as appropriate content of the educational interventions. In this way, the actual effect of each of the concepts could be determined and their effectiveness compared.

Using an electronic health record alert to prompt blood-borne virus testing in primary care.

BACKGROUND: Late diagnosis of HIV, hepatitis B (HBV) and hepatitis C (HCV) remains relatively common in the UK and many people who present late have missed opportunities for testing in primary care. The objective was to assess the effectiveness and acceptance of a prototype application (BBV_TP1), embedded in a primary care electronic health record (EHR), to increase real-time blood-borne virus (BBV) testing. METHODS: This prospective cohort study assessed BBV_TP1 in 14 general practices in North East England, in comparison with 54 similar practices in 2019. Rates of HIV, hepatitis B virus (HBV) and hepatitis C virus (HCV) testing in practices were measured before and after the application was activated. Patient and clinician acceptance of the technology was assessed by surveys. RESULTS: In the 6 months following the intervention, HIV testing rates increased 555% and combined HBV/HCV testing rates increased 362%. No significant differences were observed for any BBV testing rates in the nonintervention practices over the same period. Monthly testing rates declined towards baseline after initial increases. Clinician's perceptions of the prompt system were positive, with average additional time required for BBV test discussion in consultations estimated at 2 min. The patient survey also showed high acceptance of the technology. CONCLUSION: This pilot study demonstrated that BBV_TP1 increased BBV testing rates in primary care via targeted screening, although testing rates subsequently fell whilst the application remained active. Such systems can potentially reduce late diagnoses, while having high acceptance by clinicians and patients. Larger studies with longer follow-up are needed to demonstrate efficacy and cost-effectiveness.

Autonomous vehicles: How perspective-taking accessibility alters moral judgments and consumer purchasing behavior.

In preparation for unavoidable collisions, autonomous vehicle (AV) manufacturers could program their cars with utilitarian ethical algorithms that maximize the number of lives saved during a crash. However, recent research employing hypothetical AV crash scenarios reveals that people are not willing to purchase a utilitarian AV despite judging them to be morally appropriate (Bonnefon, Shariff, & Rahwan, 2016). This important result, indicating evidence for a social dilemma, has not yet been psychologically explored by behavioral scientists. In order to address the psychological underpinnings of this phenomenon, we developed and tested a novel theoretical proposal - perspective-taking accessibility (PT accessibility). Accordingly, we established that providing participants with access to both situational perspectives (AV buyers can be passengers or pedestrians) in crash scenarios, eliminated the behavioral inconsistency between their utilitarian judgments of moral appropriateness and non-utilitarian purchasing behavior. Moreover, our full PT accessibility induced respondents' utilitarian prosocial judgments and purchasing behavior (Experiments 1a and 1b) and consistent utilitarian preferences across judgment tasks (Experiment 2). Crucially, with full PT accessibility, participants' utilitarian purchasing behavior as well as their willingness to buy and ride utilitarian AVs were informed by their utilitarian moral judgments. Full PT accessibility provides the participants with even odds of being a pedestrian or passenger in crash scenarios, and thus impartiality. It could be argued that full PT accessibility is a new type of 'veil of ignorance', which is not based on purposely induced self-interest and uneven risk options (as in Huang, Greene, & Bazerman, 2019), but rather is based on even odds of being a passenger or pedestrian, and therefore with even 50/50 chance to die/live as passenger or pedestrian. Under these circumstances one can measure utilitarian preferences.

A randomised experiment of health, cost and social norm message frames to encourage acceptance of swaps in a simulation online supermarket.

Offering lower-energy food swaps to customers of online supermarkets could help to decrease energy (kcal) purchased and consumed. However, acceptance rates of such food swaps tend to be low. This study aimed to see whether framing lower-energy food swaps in terms of cost savings or social norms could improve likelihood of acceptance relative to framing swaps in terms of health benefits. Participants (n = 900) were asked to shop from a 12-item shopping list in a simulation online supermarket. When a target high-energy food was identified in the shopping basket at check-out, one or two lower-energy foods would be suggested as an alternative (a "swap"). Participants were randomised to only see messages emphasising health benefits (fewer calories), cost benefits (lower price) or social norms (others preferred this product). Data were analysed for 713 participants after exclusions. Participants were offered a mean of 3.17 swaps (SD = 1.50), and 12.91% of swaps were accepted (health = 14.31%, cost = 11.49%, social norms = 13.18%). Swap acceptance was not influenced by the specific swap frame used (all p > .170). Age was significantly and positively associated with swap acceptance (b = 0.02, SE = 0.00, p < .001), but was also associated with smaller decreases in energy change (b = 0.46, SE = .19, p = .014). Overall, offering swaps reduced both energy (kcal) per product (b = -9.69, SE = 4.07, p = .017) and energy (kcal) per shopping basket (t712 = 11.09, p < .001) from pre- to post-intervention. Offering lower-energy food swaps could be a successful strategy for reducing energy purchased by customers of online supermarkets. Future research should explore alternative solutions for increasing acceptance rates of such swaps.

Using behavioural insights to reduce sugar in primary school children's packed lunches in derby; A cluster randomised controlled trial.

Children's packed lunches contain more sugar than school-provided meals. Interventions to improve the provision of healthier packed lunches have modest effects on lunch contents. This cluster randomised controlled trial tested an intervention to encourage healthier provision of packed lunches by parents of primary school children in Derby. Schools were randomised to intervention (n = 8) or control (n = 9) using blocked random allocation. In the intervention group, parents of children who brought packed lunches to school in years 3-6 (age 7-11 years) received three bundles of materials (including packed lunch planner, shopping list, information on sugar content of popular lunchbox items and suggestions for healthier swap alternatives) in bookbags/lunchboxes over a 4-week period. Control parents received no materials. Photos of lunchbox contents were taken at baseline, immediately post-intervention and at three-month follow-up. A parental survey aimed to assess capability, opportunity and motivation for packing a healthier lunchbox. No intervention effects were observed for primary outcomes (presence and number of sugary snacks or chilled sugary desserts). The intervention had a significant impact on one secondary outcome (increased number of healthier "swap" items suggested in intervention materials) immediately post-intervention, but this effect had disappeared at three-month follow-up. No intervention effects were found on survey variables. Parent comments revealed that materials were either received positively (as they reinforced existing behaviours) or negatively (as they were not perceived to be helpful or appropriate). The results of this study suggest that providing educational materials and resources to parents of primary school children in Derby was not sufficient to increase provision of healthier packed lunches. Future research should investigate how behavioural science can support families to improve the nutritional content of primary school children's lunchboxes.

Embolization of the false lumen using IMPEDE-FX embolization plugs as part of treatment of an infrarenal post-dissection aneurysm: a case report.

BACKGROUND: This case report demonstrates the value of IMPEDE-FX plugs in an embolization procedure of a false lumen of an infrarenal post-dissection aneurysm. CASE PRESENTATION: A 69-year-old patient was treated with mitral valve replacement, complicated by a Stanford type-A dissection. After 9 years he presented with an enlarging infrarenal post-dissection aneurysm. The false lumen was embolized using multiple IMPEDE-FX plugs as part of the treatment in addition to embolization of the inferior mesenteric artery and overstenting of the re-entry in the right iliac artery. At 15 months the CTA showed a fully thrombosed false lumen and remodeling of the true lumen. CONCLUSIONS: The false lumen of an infrarenal post-dissection aneurysm can successfully be embolized using IMPEDE-FX embolization plugs as part of the treatment strategy. Prospective trials on patients with non-thrombosed false lumina are indicated.

The effects of exergaming on pain, postural control, technology acceptance and flow experience in older people with chronic musculoskeletal pain: a randomised controlled trial.

BACKGROUND: Older people with chronic musculoskeletal pain are at risk of falls. This study aimed to investigate the effects of exergaming on pain and postural control in older people with chronic musculoskeletal pain. Secondary outcomes were technology acceptance, flow experience, perceived physical exertion, expended mental effort and heart rate. METHODS: Fifty four older adults (age: 71 ± 5 years) with chronic musculoskeletal pain were randomised into 2 groups. Group 1 received exergaming training using the Interactive Rehabilitation and Exercise System (IREX®). Group 2 undertook traditional gym-based exercise (TGB). Both groups completed twice weekly 40-min exercise sessions for 6 weeks. Perceived pain was measured using a numeric pain rating scale and the Multidimensional Affect and Pain Survey questionnaire. Postural control was measured as sway using a Kistler™ force platform. Technology acceptance was measured with the Unified Theory of Acceptance and Use of Technology questionnaire and flow experience with the Flow State Scale. Physiological measures of perceived physical exertion, expended mental effort and heart rate were recorded during all sessions. RESULTS: The exergaming group demonstrated significant reductions in pain intensity and thermal pain including a near significant approach in physical engagement in comparison to TGB group. Although no intervention effects on postural control were found, the exergaming group showed significant improvements in three sway measures (AP SD, ML SD and AP range) over time whereas significant improvements in ML range were found in the TGB group. Relating to technology acceptance, significant intervention effects on social influence and behavioural intention were found in the TGB group instead, although both groups demonstrated increases of acceptance over time. Regarding flow experience, concentration at task was significantly influenced in the TGB group and significant increases in flow variables over time were observed in both groups. Significant increases over time in perceived physical exertion and expended mental effort were found in both groups. CONCLUSION: Our findings support the potential of exergaming to alleviate pain and improve balance in older people with chronic musculoskeletal pain. Both forms of exercise are acceptable, intrinsically motivating and show evidence of benefit to older people with chronic musculoskeletal pain. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT04029285 (retrospectively registered, July 23, 2019).

Designing an electronic blood-borne virus risk alert to improve uptake of testing.

The primary aim of the current study was to test the effect of the presentation design of a test alert system on healthcare workers' (HCWs') decision-making regarding blood-borne virus (BBV) testing. The secondary aim was to determine HCWs' acceptance of the system. An online survey used a within-subjects research design with four design factors as independent variables. The dependent variable was clinical decision. Ten realistic descriptions of hypothetical patients were presented to participants who were asked to decide whether to request BBV testing. The effect of a pre-set course of action to request BBV testing was significant when additional information (cost-effectiveness, date of last BBV test or risk assessment) was not presented, with a 16% increase from 30 to 46% accept decisions. When risk assessment information was presented without a pre-set course of action, the effects of cost-effectiveness (27% increase) and last test date (23% decrease) were significant. The main reason for declining to test was insufficient risk. HCWs' acceptance of the test alert system was high and resistance was low. We make recommendations from the results for the design of a subsequent real-world trial of the test alert system.

PROTOCOL: Exercise interventions to improve back shape/posture, balance, falls and fear of falling in older adults with hyperkyphosis: A systematic review.

Aim: The aim of this systematic review is to evaluate and synthesize published and unpublished literature on the effectiveness of a diverse range of exercise programs on back shape/posture, balance, falling and fear of falling in older people with hyperkyphosis. Objectives: The objective of this systematic review is to determine the effects of difference exercise programs on back shape/posture, balance, falling and fear of falling in older adults with hyperkyphosis.

Total Endovascular Repair of the Aortic Arch: Initial Experience in the Netherlands.

BACKGROUND: We report procedural and early results in the Netherlands of the Relay Branch device (Terumo Aortic, Sunrise, FL) for total endovascular repair of the aortic arch. METHODS: Between 2014 and 2018, all consecutive patients who received the Aortic Relay double-branched stent graft in the Netherlands were included in a multicenter, retrospective registry. RESULTS: The Relay Branch device was used in 11 patients to treat saccular (n = 4), fusiform (n = 5), or false aneurysms (n = 2) in the aortic arch. Patients were deemed unfit or extreme high-risk for open (redo) surgery. The brachiocephalic trunk and left common carotid artery were branched using a retrograde approach in all cases. Additional surgical left subclavian artery revascularization was performed in 8 patients. The main device and the branches were successfully introduced, positioned, and deployed with complete exclusion of the aortic pathology in all patients (100% technical success). There was no retrograde type A dissection or conversion to open surgery. Two procedure-related deaths occurred, both caused by perioperative or postoperative strokes. There were 2 minor strokes with full recovery. One patient recovered from transient paraplegia after spinal fluid drainage. No permanent paraplegia was observed. Follow-up imaging showed persistent adequate exclusion of aortic arch pathology. Mean follow-up was 17 months (range, 3-42 months). CONCLUSIONS: Total endovascular aortic arch repair using the Relay Branch device is technically feasible and effective in excluding aortic arch pathology. The observed stroke rate in the initial experience, however, was considerable. Although appealing, this new less-invasive technique should be carefully introduced and its progress thoroughly evaluated.

Preference reversals during risk elicitation.

Understanding human behavior from the perspective of normative and descriptive theories depends on human agents having stable and coherent decision-making preferences. Both utility theory (expected rational behavior; von Neumann & Morgenstern, 1947) and prospect theory, with its certainty equivalent (CE) method (expected irrational behavior; Tversky & Kahneman, 1992), assume stable behavioral patterns of risk preferences. In contrast, our research pursues the opposite proposal: Human preferences (rational or irrational) are not stable; variations in the decision context during risk elicitation determine people's preferences even when the utilities of choice options are available. Accordingly, we found evidence that decision makers reverse their risk preferences between CE tasks with logarithmically spaced certainty (unequal number of risk-averse and risk-seeking sure options) and linearly spaced certainty (equal number of risk-averse and risk-seeking sure options). The results revealed that the effect of probability range (low and high) on preferences, predicted by prospect theory, is an artifact of the logarithmically spaced sure options. When the sure options were linearly spaced, the probability range no longer influenced risk preferences, indicating a preference reversal between decision tasks. Our findings highlight a need to investigate how the predictions of descriptive decision-making theories are shaped by their risk elicitation methods. (PsycINFO Database Record (c) 2020 APA, all rights reserved).

Choice Under Risk: How Occupation Influences Preferences.

In the last decade, a number of studies in the behavioral sciences, particularly in psychology and economics, have explored the complexity of individual risk behavior and its underlying factors. Most previous studies have examined the influences of various socio-economic, cognitive, biological and psychological factors on human decision-making, however, the relationship between the decision-makers' risk preferences and occupational background has not received much empirical attention. Accordingly, in the current study, we investigated how occupational background, together with decision-making framing (e.g., variations in decision domain, context, presentation of risk, and utility ratios), influence participants' risk preferences for decision options with equivalent expected utility. Our novel findings indicate that risk preferences may vary among individuals from different occupational backgrounds. As such, when the task was framed in gain terms, participants who mostly deal with health/safety-related risks on a day-to-day basis (high-risk occupations) were predominantly risk-averse (avoiding risky options), while participants who mostly deal with financial/social risks (white-collar occupations) were prone to risk-seeking behavior (avoiding certain options). Specifically, in "high-risk" occupations, participants' pattern of choices changed from risk-averse in gain scenarios to risk-seeking in loss scenarios. However, the opposite pattern of risk preferences was found in participants with "white-collar" occupations. Our findings indicate that decision-makers' occupational backgrounds influence risk preferences under some circumstances.

Explainable statistical learning in public health for policy development: the case of real-world suicide data.

BACKGROUND: In recent years, the availability of publicly available data related to public health has significantly increased. These data have substantial potential to develop public health policy; however, this requires meaningful and insightful analysis. Our aim is to demonstrate how data analysis techniques can be used to address the issues of data reduction, prediction and explanation using online available public health data, in order to provide a sound basis for informing public health policy. METHODS: Observational suicide prevention data were analysed from an existing online United Kingdom national public health database. Multi-collinearity analysis and principal-component analysis were used to reduce correlated data, followed by regression analyses for prediction and explanation of suicide. RESULTS: Multi-collinearity analysis was effective in reducing the indicator set of predictors by 30% and principal component analysis further reduced the set by 86%. Regression for prediction identified four significant indicator predictors of suicide behaviour (emergency hospital admissions for intentional self-harm, children leaving care, statutory homelessness and self-reported well-being/low happiness) and two main component predictors (relatedness dysfunction, and behavioural problems and mental illness). Regression for explanation identified significant moderation of a well-being predictor (low happiness) of suicide behaviour by a social factor (living alone), thereby supporting existing theory and providing insight beyond the results of regression for prediction. Two independent predictors capturing relatedness needs in social care service delivery were also identified. CONCLUSIONS: We demonstrate the effectiveness of regression techniques in the analysis of online public health data. Regression analysis for prediction and explanation can both be appropriate for public health data analysis for a better understanding of public health outcomes. It is therefore essential to clarify the aim of the analysis (prediction accuracy or theory development) as a basis for choosing the most appropriate model. We apply these techniques to the analysis of suicide data; however, we argue that the analysis presented in this study should be applied to datasets across public health in order to improve the quality of health policy recommendations.

The Information Needs of Adolescent Idiopathic Scoliosis Patients and Their Parents in the UK: An Online Survey.

Patients' involvement in decision-making regarding their own health care is considered to be of great importance. However, their information needs are frequently reported to be unfulfilled. Few studies have investigated the knowledge, information and support needs of adolescent idiopathic scoliosis (AIS) patients and their families. Furthermore, previous studies have predominantly focussed on information needs relating to surgery. No previous studies have been conducted to specifically identify the information needs of AIS patients and their families. An online survey consisting of 18 questions was conducted to investigate the information needs of AIS patients and their families. Completed surveys of 83 participants (76 female, 7 male) from 44 differing postcode areas were analysed. The mean age of the respondents with scoliosis was 13.3 years (SD = 1.9; range = 10-18). Participants identified with feelings including worry, anxiety and being upset. The main information needs related to the cause and prognosis of the condition. Where participants had received information, there were contrasting views of the quality. The findings of this study stress the necessity for information materials to be accurate and applicable to each individual patient. Furthermore, the information should be presented in such a way as to be easily understandable, yet contain the necessary information required by AIS patients and their families.