Physician uncertainty aversion impacts medical decision making for older patients with acute myeloid leukemia: results of a national survey.

Elderly patients with acute myeloid leukemia can be treated with intensive chemotherapy, low-intensity therapy such as low-dose aracytine or hypomethylating agents, or best supportive care. The choice between these treatments is a function of many patient-related and disease-related factors. We investigated how physicians' behavioral characteristics affect medical decision-making between intensive and non-intensive therapy in this setting. A nationwide cross-sectional online survey of hematologists collected data on medical decision-making for 6 clinical vignettes involving older acute myeloid leukemia patients that were representative of routine practice. Questionnaires elicited physicians' demographic and occupational characteristics along with their individual behavioral characteristics according to a decision theory framework. From the pattern of responses to the vignettes, a K-means clustering algorithm was used to distinguish those who were likely to prescribe more intensive therapy and those who were likely to prescribe less intensive or no therapy. Multivariate analyses were used to identify physician's characteristics predictive of medical decision-making. We obtained 230 assessable answers, which represented an adjusted response rate of 45.4%. A multivariate model (n=210) revealed that physicians averse to uncertainty recommend significantly more intensive chemotherapy: Odds Ratio (OR) [95% Confidence Interval (CI)]: 1.15 [1.01;1.30]; P=0.039. Male physicians who do not conform to the expected utility model (assumed as economically irrational) recommend more intensive chemotherapy [OR (95% CI) = 3.45 (1.34; 8.85); P=0.01]. Patient volume per physician also correlated with therapy intensity [OR (95% CI)=0.98 (0.96; 0.99); P=0.032]. The physicians' medical decision-making was not affected by their age, years of experience, or hospital facility. The significant association between medical decision and individual behavioral characteristics of the physician identifies a novel non-biological factor that may affect acute myeloid leukemia patients' outcomes and explain variations in clinical practice. It should also encourage the use of validated predictive models and the description of novel bio-markers to best select patients for intensive chemotherapy or low-intensity therapy.

Comparing GPs' risk attitudes for their own health and for their patients' : a troubling discrepancy?

BACKGROUND: In this paper, we report the results of risk attitudes elicitation of a French general practitioners national representative sample (N=1568). METHODS: Willingness to take risks in four different domains (daily life, financial matters, own health and patient health) was collected through a large-scale telephone interview of GPs using self-reported 11-point Likert scale questions. RESULTS: We uncover some specificities of the GPs population regarding their attitudes towards risk. In particular, we detect an important positive gap between their willingness to take risks in the domain of their own health and in the domain of the heath of their patients. This "patient-regarding" risk aversion is discussed with respect to its important consequences regarding medical behavior bias. CONCLUSIONS: We confirm the self-other discrepancy found in the medical literature on physicians' behaviors and emphasize the utility of the study and measures of personality traits such as "risk attitudes" for the medical professions and for the population they address.

Mastery Is Associated With Weight Status, Food Intake, Snacking, and Eating Disorder Symptoms in the NutriNet-Santé Cohort Study.

Mastery is a psychological resource that is defined as the extent to which individuals perceive having control over important circumstances of their lives. Although mastery has been associated with various physical and psychological health outcomes, studies assessing its relationship with weight status and dietary behavior are lacking. The aim of this cross-sectional study was to assess the relationship between mastery and weight status, food intake, snacking, and eating disorder (ED) symptoms in the NutriNet-Santé cohort study. Mastery was measured with the Pearlin Mastery Scale (PMS) in 32,588 adults (77.45% female), the mean age was 50.04 (14.53) years. Height and weight were self-reported. Overall diet quality and food group consumption were evaluated with ≥3 self-reported 24-h dietary records (range: 3-27). Snacking was assessed with an ad-hoc question. ED symptoms were assessed with the Sick-Control-One-Fat-Food Questionnaire (SCOFF). Linear and logistic regression analyses were conducted to assess the relationship between mastery and weight status, food intake, snacking, and ED symptoms, controlling for sociodemographic and lifestyle characteristics. Females with a higher level of mastery were less likely to be underweight (OR: 0.88; 95%CI: 0.84, 0.93), overweight [OR: 0.94 (0.91, 0.97)], or obese [class I: OR: 0.86 (0.82, 0.90); class II: OR: 0.76 (0.71, 0.82); class III: OR: 0.77 (0.69, 0.86)]. Males with a higher level of mastery were less likely to be obese [class III: OR: 0.75 (0.57, 0.99)]. Mastery was associated with better diet quality overall, a higher consumption of fruit and vegetables, seafood, wholegrain foods, legumes, non-salted oleaginous fruits, and alcoholic beverages and with a lower consumption of meat and poultry, dairy products, sugary and fatty products, milk-based desserts, and sweetened beverages. Mastery was also associated with lower snacking frequency [OR: 0.89 (0.86, 0.91)] and less ED symptoms [OR: 0.73 (0.71, 0.75)]. As mastery was associated with favorable dietary behavior and weight status, targeting mastery might be a promising approach in promoting healthy behaviors. Clinical Trial Registry Number: NCT03335644 at Clinicaltrials.gov.

The impact of physician's characteristics on decision-making inhead and neck oncology: Results of a national survey.

OBJECTIVES: The aim of this study was to identify the socio-professional and behavioral factors influencing decision-making between surgical and non-surgical treatment in Upper AeroDigestive Tract (UADT) oncology among surgeons and oncologists. MATERIALS AND METHODS: We conducted a nationwide online survey among surgeons and medical or radiation oncologists treating head and neck cancer patients in France. The questionnaire collected physicians' demographics, type of practice, individual behavioral characteristics (attitudes toward risk and uncertainty) and data on decision-making via clinical case scenarios. RESULTS: In total, 197 questionnaires were usable. Clinical case scenarios were grouped into three categories according to the prognostic and functional impact of the choice between surgical or non-surgical treatment. For clinical case scenarios where evidence-based medicine considered surgery as the best option, surgeons were significantly more likely to offer surgery in multivariable analysis. When surgery and non-surgical treatment were equivalent, multivariable analysis showed that the tendency to offer surgery increased with the physician's age, and decreased as the number of patients treated per year increased. When non-surgical treatment was the best option because of very high surgical morbidity, multivariable analysis showed a higher propensity to opt for surgery for the age group 40 - 59 versus 25 - 39, and a lower likelihood of choosing surgery among oncologists. CONCLUSION: This study sheds light on the physicians' socio-professional and behavioral factors influencing decision-making in UADT oncology. These mechanisms, poorly studied and probably underestimated, partly explain the variability of the decisions taken when confronted with clinical situations that are subject to debate. CLINICALTRIALS: gov ID: NCT03663985.

Physician practice variation in head and neck cancer therapy: Results of a national survey.

OBJECTIVES: Choice between surgical or medical treatments in head and neck cancer depends of many patient-related and disease-related factors. We investigated how patients' socioeconomic status and practitioners' specialty could affect medical decision-making. MATERIALS AND METHODS: We conducted a cross-sectional online, nationwide survey, send to surgeons, oncologists and radiotherapists specialized in head and neck oncology. We collected data on medical decision-making for seven clinical scientific scenarios involving head and neck carcinoma and physicians' demographic data. Patients' gender and socioeconomic position were distributed across scientific scenarios using a Latin square design. The scientific scenarios were grouped into several categories according to the prognostic and functional impact of the therapeutic choice. RESULTS: We obtained 206 assessable answers. Surgeons seemed to propose surgery in 49% of cases, whereas oncologists and radiotherapists opted for it in 34% of cases only. This was particularly relevant when the oncological result of surgery and the medical approach were equivalent, and when the surgery appeared to be superior in terms of curative potential but was burdened by a large functional impact. Patient's socioeconomic position also influence therapeutic decision. Among surgeons, the "single male manager" had significantly more chance of being offered surgery than the "married male blue-collar worker". Among oncologists and radiotherapists, the "single male blue-collar worker" had the lowest probability of being proposed surgery. Regarding gender, surgeons tended to offer surgical management more to women regardless of their clinical profile. CONCLUSIONS: Patients' sex, marital status, socioeconomic status, practitioners' specialty affect therapeutic management decisions in head and neck oncology.

Predicting medical practices using various risk attitude measures.

This paper investigates the predictive power of several risk attitude measures on a series of medical practices. We elicit risk preferences on a sample of 1500 French general practitioners (GPs) using two different classes of tools: scales, which measure GPs' own perception of their willingness to take risks between 0 and 10; and lotteries, which require GPs to choose between a safe and a risky option in a series of hypothetical situations. In addition to a daily life risk scale that measures a general risk attitude, risk taking is measured in different domains for each tool: financial matters, GPs' own health, and patients' health. We take advantage of the rare opportunity to combine these multiple risk attitude measures with a series of self-reported or administratively recorded medical practices. We successively test the predictive power of our seven risk attitude measures on eleven medical practices affecting the GPs' own health or their patients' health. We find that domain-specific measures are far better predictors than the general risk attitude measure. Neither of the two classes of tools (scales or lotteries) seems to perform indisputably better than the other, except when we concentrate on the only non-declarative practice (prescription of biological tests), for which the classic money-lottery test works well. From a public health perspective, appropriate measures of willingness to take risks may be used to make a quick, but efficient, profiling of GPs and target them with personalized communications, or interventions, aimed at improving practices.

Cross-sectional survey: risk-averse French general practitioners are more favorable toward influenza vaccination.

OBJECTIVES: We tested the following hypotheses: (i) risk-averse general practitioners (GPs) are more likely to be vaccinated against influenza; (ii) and risk-averse GPs recommend influenza vaccination more often to their patients. In risk-averse GPs, the perceived benefits of the vaccine and/or the perceived risks of the infectious disease might indeed outweigh the perceived risks of the vaccine. PATIENTS/METHODS: In 2010-2012, we conducted a cross-sectional survey of a nationwide French representative sample of 1136 GPs. Multivariate analyses adjusted for four stratification variables (age, gender, urban/suburban/rural practice location and annual patient consultations) and for GPs' characteristics (group/solo practice, and occasional practice of alternative medicine, e.g., homeopathy) looked for associations between their risk attitudes and self-reported vaccination behavior. Individual risk attitudes were expressed as a continuous variable, from 0 (risk-tolerant) to 10 (risk-averse). RESULTS: Overall, 69% of GPs reported that they were very favorable toward vaccination in general. Self-reported vaccination coverage was 78% for 2009/2010 seasonal influenza and 62% for A/H1N1 pandemic influenza. Most GPs (72%) reported recommending the pandemic influenza vaccination to at-risk young adults in 2009, but few than half (42%) to young adults not at risk. In multivariate analyses, risk-averse GPs were more often vaccinated against seasonal (marginal effect=1.3%, P=0.02) and pandemic influenza (marginal effect=1.5%, P=0.02). Risk-averse GPs recommended the pandemic influenza vaccination more often than their more risk-tolerant colleagues to patients without risk factors (marginal effect=1.7%, P=0.01), but not to their at-risk patients and were more favorable toward vaccination in general (marginal effect=1.5%, P=0.04). CONCLUSION: Individual risk attitudes may influence GPs' practices regarding influenza vaccination, both for themselves and their patients. Our results suggest that risk-averse GPs may perceive the risks of influenza to outweigh the potential risks related to the vaccine.

Cross-sectional survey: risk-averse French GPs use more rapid-antigen diagnostic tests in tonsillitis in children.

OBJECTIVES: We tested the following hypotheses: (1) risk-averse general practitioners (GPs) might use more Rapid Antigen Diagnostic Tests (RADTs) in tonsillitis in children, probably to decrease their diagnostic uncertainty regarding the aetiology of the disease (viral vs due to group A Streptococcus); and (2) GPs not using RADT might prescribe more antibiotics when they are risk averse. DESIGN, SETTING AND PARTICIPANTS: We conducted a cross-sectional survey of a nationwide French representative sample of 1093 GPs in 2012. OUTCOME MEASURES: Multivariate analyses adjusted on the four stratification variables (age, gender, location and volume of activity, ie, the number of annual consultations) were performed to identify the risk domains associated with indicators of good or poor practice. RESULTS: 69.4% of GPs were aware of national guidelines regarding tonsillitis and declared that they had taken these guidelines into account for their last paediatric tonsillitis case. 59.1% declared they used RADT in their last patient aged between 3 and 16 years presenting with tonsillitis; 29.7% of these tests were positive. Among the GPs who used RADT, 30.7% prescribed an antibiotic; 98.3% did either prescribe an antibiotic because of a positive RADT result, or did not prescribe an antibiotic in view of a negative result. Among the GPs who did not use RADT, 50.7% prescribed an antibiotic. In multivariate analyses, risk-averse GPs declared being more aware of and compliant with guidelines (OR=1.56, p<0.01), and used RADTs more often for their last patient (OR=1.30, p<0.05). Among GPs not using RADT in their last patient, risk-averse GPs prescribed more antibiotics compared with risk-tolerant doctors (OR=1.18, p<0.05). CONCLUSIONS: Individual risk attitudes influenced GPs' practices in tonsillitis, particularly the use of RADTs and antibiotic prescriptions.