Effect of a surgical observership on the perceptions and career choices of preclinical medical students: a mixed-methods study.

BACKGROUND: Medical students are increasingly choosing nonsurgical specialties; observership programs can address factors influencing them toward surgical careers by allowing preclerkship exposure and mentorship, and correcting misconceptions. The aims of this study were to assess the influence of a peer-led observership program at the Université de Montréal on the career choices of preclinical medical students and to determine the factors associated with a positive observership experience. METHODS: We used a quasi-experimental convergent mixed-methods questionnaire design. From Nov. 19 to Dec. 31, 2018, and Mar. 1 to Apr. 4, 2019, all medical students participating in the observership program were eligible for the study; there were no ineligibility criteria. Using a prospective purposive sampling method, we recruited students via the email sent to confirm their observership. In the week after their observership, we invited the students by email to complete a postintervention survey. We used nonparametric tests to evaluate the impact of the observership on participants' career choices and an inductive data-driven thematic analysis to analyze their responses. RESULTS: Of the 204 students who participated, 157 provided consent, of whom 85 (54.1%) completed questionnaires both before and after the observership. The majority of participants were interested in a surgical specialty before (72 [85%]) and after (68 [84%]) the observership. There was no significant change in the students' choices of surgical specialties after the observership. However, most (68 [81%]) reported being more interested in a surgical career as a result of the observership, which allowed them to see that the type of practice they considered was congruent with a surgical career. Their perceptions of the field of surgery became positive, particularly regarding its pace and atmosphere and the humanistic patient-doctor relationship it required. The experience was influenced by surgeons' and teams' attitudes toward students, knowledge-sharing and quality of exposure. Participants mentioned that their willingness to participate was in part responsible for the success of their experience. CONCLUSION: This observership program allowed an early, positive introduction of students to surgery while challenging stereotypes. It provided a better understanding of surgery, enabling participants to consider this field and potentially influencing their residency application.

Assessment of the effectiveness of radon screening programs in reducing lung cancer mortality.

The present study was aimed at assessing the health consequences of the presence of radon in Quebec homes and the possible impact of various screening programs on lung cancer mortality. Lung cancer risk due to this radioactive gas was estimated according to the cancer risk model developed by the Sixth Committee on Biological Effects of Ionizing Radiations. Objective data on residential radon exposure, population mobility, and tobacco use in the study population were integrated into a Monte-Carlo-type model. Participation rates to radon screening programs were estimated from published data. According to the model used, approximately 10% of deaths due to lung cancer are attributable to residential radon exposure on a yearly basis in Quebec. In the long term, the promotion of a universal screening program would prevent less than one death/year on a province-wide scale (0.8 case; IC 99%: -3.6 to 5.2 cases/year), for an overall reduction of 0.19% in radon-related mortality. Reductions in mortality due to radon by (1) the implementation of a targeted screening program in the region with the highest concentrations, (2) the promotion of screening on a local basis with financial support, or (3) the realization of systematic investigations in primary and secondary schools would increase to 1%, 14%, and 16.4%, respectively, in the each of the populations targeted by these scenarios. Other than the battle against tobacco use, radon screening in public buildings thus currently appears as the most promising screening policy for reducing radon-related lung cancer.