Match Performance Statistics Related to Winning of Chinese Super League Under Different Match Stages

This paper aims to determine relationships between 160 matches statistics and the match results in two match stages of 2020 CSL under the COVID-19 pandemic prevention and control. A team's winning probability was evaluated by a two-standard-deviation increase in the value of each variable. The smallest worthwhile change was used to evaluate nonclinical magnitude-based inferences. The results showed that for group round robin stage, nine match statistics had clearly positive effects on the probability of winning (Shot, Shot on Target, Shot from Set Piece, Cross Accuracy, Counterattack, Won Challenge, Tackle Gaining, HIR Distance in BP, Sprinting Distance in BP), two had obviously negative effects (Distance Covered in Penalty Area, Sprinting Distance Out of BP), other twenty-three statistics had either trivial or unclear effects. While for the knockout stage, the effects of nine match statistics (Pass Accuracy, Forward Pass Accuracy, Delivery into Attacking Third, Delivery into Penalty Area, Dribble into Attacking Third, Corner, Foul Committed, Yellow Card, Distance Covered in Attacking Third) turned to clearly positive, the effects of Won Challenge, Cross Accuracy turned to trivial and clearly negative, respectively. Coaches and players should take these different aspects into account when planning practices and competitions for their teams. © 2023 SPIE.

The Virtual Interview Experience for MATCH 2021: A Pilot Survey of General Surgery Residency Program Directors.

BACKGROUND: Virtual interviews (VIs) for the 2020 residency application season were mandated as a result of the COVID-19 pandemic. We aimed to determine the perspectives of general surgery (GS) program directors (PDs) on the benefits and drawbacks of VIs. METHODS: A 14-item survey was emailed to all GS PDs from programs identified on the American Council for Graduate Medical Education website. Program directors were asked about the cost-time benefit of VIs, its ability to assess candidates, and their thoughts on the future of VIs for evaluating residency applicants. RESULTS: 60 PDs responded corresponding to a response rate of 21%. While 93% agreed/strongly agreed that VIs were less expensive, only 35% found VIs to be less time-consuming. 75% and 67%, respectively, disagreed/strongly disagreed that VIs allowed for an easier assessment of an applicant's fit, and personality and communication skills. Almost one-half of our survey respondents suggested that VIs made the selection committee rely more heavily on objective applicant data. Almost two-thirds of GS PDs suggested that they would adopt both VI and in-person interview formats for future application cycles. The median [interquartile range] cost saved through the implementation of VIs was US$ 4500 [1625 - 10 000]. CONCLUSION: Remarkably, VIs have been swiftly imbibed by all residency programs and many aspects of the VI experience were positive. While MATCH 2021 has definitely proved to be one of its kind, the implementation of VIs has been met with overall broad success and a promising future awaits this novel modality of resident selection to GME programs in the United States.

The Importance of General Surgery Residency Program's Online Presence Varies Among Applicant Groups.

INTRODUCTION: The COVID-19 pandemic necessitated an exclusively virtual 2021 residency application cycle. We hypothesized that residency programs' online presence would have increased utility and influence for applicants. METHODS: Substantial surgery residency website modifications were undertaken in the summer of 2020. Page views were gathered by our institution's information technology office for comparison across years and programs. An anonymous, voluntary, online survey was sent to all interviewed applicants for our 2021 general surgery program match. Five-point Likert-scale questions evaluated applicants' perspective on the online experience. RESULTS: Our residency website received 10,650 page views in 2019 and 12,688 in 2020 (P = 0.14). Page views increased with a greater margin compared to a different specialty residency program's (P < 0.01). From 108 interviewees, 75 completed the survey (69.4%). Respondents indicated our website was satisfactory or very satisfactory compared to other programs (83.9%), and none found it unsatisfactory. Applicants overall stated our institution's online presence impacted their decision to interview (51.6%). Programs' online presence impacted the decision to interview for nonWhite applicants (68%) but significantly less for white applicants (31%, P < 0.03). We observed a trend that those with fewer than this cohort's median interviews (17 or less) put more weight on online presence (65%), compared to those with 18 or greater interviews (35%). CONCLUSIONS: Applicants utilized program websites more during the 2021 virtual application cycle; our data show most applicants depend on institutions' websites to supplement their decision-making; however, there are subgroup differences in the influence online presence has on applicant decisions. Efforts to enhance residency webpages and online resources for candidates may positively influence prospective surgical trainees, and especially those underrepresented in medicine, to decide to interview.

The 2022 and 2023 Emergency Medicine Residency Match: A Cautionary Tale.

Introduction The emergency medicine (EM) match has undergone significant shifts in 2022 and 2023. While variation in specialty fill rates is expected over time, EM programs noted a significant increase in open positions starting in 2022. Utilizing National Resident Matching Program (NRMP) data over a 10-year period, we identified significant deviations in the emergency medicine match. Methods Shewhart control charts were used to plot the match results over time. A 10-year sample was used to establish the baseline value. From this value, the upper and lower control limits were established. Residency program expansion, decreasing applicant numbers, and changing applicant types were evaluated to detect any non-random changes to the process. Results While the number of EM PGY-1 positions added over time was within the expected range, both the number of unmatched positions and the change in the number of total US MD applicants were outside of this range and are considered to be "out of control." Conclusion It is not yet clear which contributing causes may underlie this sudden change. Several potential etiologies exist, including mismatches in supply and demand for positions, changes in perceptions of the specialty, the effects of COVID-19, and changing workforce needs. Historically similar experiences affecting other specialties, including anesthesia and radiation oncology, are analyzed. Potential solutions for returning to the necessary and usual success of the emergency medicine specialty match are explored.

A Canadian survey of residency applicants' and interviewers' perceptions of the 2021 CaRMS R1 virtual interviews.

BACKGROUND: All Canadian Residency Matching Service (CaRMS) R1 interviews were conducted virtually for the first time in 2021. We explored the facilitators, barriers, and implications of the virtual interview process for the CaRMS R1 match and provide recommendations for improvement. METHODS: We conducted a cross-sectional survey study of CaRMS R1 residency applicants and interviewers across Canada in 2021. Surveys were distributed by email to the interviewers, and by email, social media, or newsletter to the applicants. Inductive thematic analysis was used for open-ended items. Recommendations were provided as frequencies to demonstrate strength. Close-ended items were described and compared across groups using Chi-Square Fisher's Exact tests. RESULTS: A total of 127 applicants and 400 interviewers, including 127 program directors, responded to the survey. 193/380 (50.8%) interviewers and 90/118 (76.3%) applicants preferred virtual over in-person interview formats. Facilitators of the virtual interview format included cost and time savings, ease of scheduling, reduced environmental impact, greater equity, less stress, greater reach and participation, and safety. Barriers of the virtual interview format included reduced informal conversations, limited ability for applicants to explore programs at different locations, limited ability for programs to assess applicants' interest, technological issues, concern for interview integrity, limited non-verbal communication, and reduced networking. The most helpful media for applicants to learn about residency programs were program websites, the CaRMS/AFMC websites, and recruitment videos. Additionally, panel interviews were preferred by applicants for their ability to showcase themselves and build connections with multiple interviewers. Respondents provided recommendations regarding: (1) dissemination of program information, (2) the use of technology, and (3) the virtual interview format. CONCLUSIONS: Perceptions of 2021 CaRMS R1 virtual interviews were favourable among applicants and interviewers. Recommendations from this study can help improve future iterations of virtual interviews.

The Neurosurgery Match: COVID Comparison and Bibliometric Analysis.

INTRODUCTION: Because of the effect of COVID on academic opportunities, as well as limitations on travel, away rotations and in-person interviews, COVID-related changes could impact the neurosurgical resident demographics. Our aim was to retrospectively review the demographics of the previous four years of neurosurgery residents, provide bibliometric analysis of successful applicants, and analyze for the effects of COVID on the match cycle. METHODS: All AANS residency program websites were examined for a list of demographic characteristics for current post-graduate year (PGY) 1 to 4. Gathered information included gender, undergraduate and medical institution and state, medical degree status, and prior graduate programs. RESULTS: A total of 114 institutions and 946 residents were included in the final review. 676 (71.5%) of the residents included in the analysis were male. Of the 783 who studied within the United States, 221 (28.2%) residents stayed within the same state of his or her medical school. 104 of 555 (18.7%) residents stayed within the same state of his or her undergraduate school. Demographic information as well as geographic switching relative to medical school, undergraduate school, and hometown showed no significant changes between pre-COVID and COVID-matched cohorts overall. The median number of publications per resident significantly increased for the COVID-matched cohort (median, 1; interquartile range (IQR), 0-4.75) when compared to the non-COVID-matched cohort (median, 1; IQR, 0-3, p = 0.004) as did first author publications (median, 1; IQR, 0-1 vs median, 1; IQR, 0-1; p = 0.015), respectively. The number of residents matching into the same region in the Northeast relative to undergraduate degree was significantly greater after COVID (56 (58%) vs 36 (42%), p = 0.026). The West demonstrated a significant increase in the mean number of total publications (4.0 ± 8.5 vs 2.3 ± 4.2, p = 0.02) and first author publications (1.24 ± 2.33 vs 0.68 ± 1.47, p = 0.02) after COVID, with the increase in first author publications being significant in a test of medians. CONCLUSION: Herein we characterized the most recently matched neurosurgery applicants, paying particular attention to changes over time in relation to the onset of the pandemic. Apart from publication volume, characteristics of residents and geographical preferences did not change with the influence of COVID-induced changes in the application process.

Rapidly Increasing Number and Cost of Residency Applications in Surgery.

BACKGROUND: Surgical specialties represent the most competitive residency positions to obtain, and applicants for these spots may apply to increasingly more programs in an attempt to match. We describe trends in residency applications across all surgical specialties from 2017 to 2021 application cycles. MATERIALS AND METHODS: This review of the 2017, 2018, 2019, 2020, and 2021 surgical residency application cycles used the American Association of Medical Colleges' Electronic Residency Application Service (ERAS) databases. Data from a total of 72,171 applicants to United States surgical residencies during the study's time period were included. The 2021 ERAS fee schedule was used to calculate the cost of applications. RESULTS: The number of applicants across the study interval remains unchanged. Trends suggest more women and underrepresented minorities in medicine are applying to surgical residencies today compared to 5 years ago. The mean number of applications per applicant increased 32.0% from 39.3 in 2017 to 51.8 in 2021, resulting in an increased application fee cost of $329 per applicant. Mean total cost for application fees alone in 2021 were $1211 per applicant. In 2021, the cost of applying to surgical residency for all applicants was over $26 million, a nearly $8 million increase from 2017. CONCLUSIONS: There has been an increase in the number of applications per applicant in the past 5 residency application cycles. Increased applications create barriers and burdens for applicants, and residency program personnel. These rapid increases are unsustainable and require intervention, although a viable solution has yet to be elucidated.

Covid-19, HLA, and race common link: A novel hypothesis.

The novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) accountable for the coronavirus disease 2019 (Covid-19) prompted a catastrophic pandemic striking millions of people with diverse presentations, from asymptomatic to severe, potentially lethal disease requiring unprecedented levels of specialized care and extraordinary resources that have overwhelmed healthcare systems around the world. In this detailed communication we postulating a novel hypothesis, based on the viral replication and transplantation immunology. This based on reviewing published journal articles and text book chapters to account for variable mortality and degrees of morbidity among various race and origins. Homo sapiens evolution over millions of years, for that the matter the origin of any biologic form of life form initiated by microorganisms. The entire body of a human has several millions of bacterial and viral genomes incorporated over millions of years. Perhaps the answer or a clue lies how compatible a foreign genomic sequence fits into three billion copies of human genome.

Evaluation of Virtual Vitreoretinal Surgery Fellowship Interview and Match Experience.

Purpose: To evaluate applicants' and programs' experiences during the 2019 and 2020 fellowship application seasons. Methods: An anonymous survey of vitreoretinal surgery fellowship program directors (PDs) (n = 21) and applicants from the 2019 traditional (n = 24) and 2020 virtual (n = 17) match cycles (before and during COVID-19 pandemic, respectively) was conducted. The questions assessed demographics, interview experiences, and overall interview costs. Statistical significance was determined using unpaired and paired 2-sided t tests for applicants and PDs, respectively (P < .05). Results: In 2020, 17.6% of applicants and 15.8% of PDs strongly agreed that they were able to convey themselves well during the interview compared with 50% and 73.7%, respectively, in 2019 (P = .002 and P < .001, respectively). In 2020, 5.9% of applicants and 10.5% of PDs strongly agreed that they gained a good understanding of their counterpart compared with 41.7% and 47.4%, respectively, in 2019 (P < .001 and P = .01, respectively). Regarding cost, 83.3% of applicants and 21.1% of programs spent more than $2000 in 2019, whereas 17.6% of applicants and no program did so in 2020. Conclusions: Although virtual interviews allowed fellowship recruitment to continue during the pandemic, both applicants and PDs expressed uncertainty regarding their abilities to portray themselves and gauge those with whom they interviewed. The benefits of virtual interviews, including decreased cost, increased efficiency, and convenience, must be weighed against these factors.

Virtual interviewing in the MedPhys match: Experiences of applicants and programs.

PURPOSE: The purpose of this survey study is to compare the experiences of programs and applicants in the MedPhys Match (MPM) in the 2020-21 match cycle with experiences reported from previous match cycles. The 2020-21 match cycle was unique in that recruitment and interviewing were almost exclusively virtual during the COVID-19 pandemic. METHODS: A survey was sent to all applicants and programs registered for the 2020-21 MPM. Survey questions asked about the pre-interview screening, interview, ranking, and post-match stages of the residency match process. Survey data were analyzed using graphical methods and spreadsheet tools. RESULTS: Advantages and disadvantages to the virtual interviewing experience were reported by applicants and program directors (PDs). The advantages included reduced cost and greater scheduling flexibility with fewer scheduling conflicts, allowing applicants to consider more programs. These advantages greatly outweighed the disadvantages such as the inability to meet faculty/staff and current residents in person and gauge the feel of the program. PDs recognized the advantages of minimal costs and time savings for applicants. Programs reported it was difficult to convey workplace culture and the physical environment and to gauge personality and interpersonal skills of the applicants. CONCLUSION: The virtual interviewing environment for residency recruitment in medical physics is strongly preferred by applicants over required in-person interviews. The advantages identified by applicants outweigh the disadvantages, allowing applicants to feel confident in their ranking decisions and overall satisfied with their match results. PDs acknowledge the greater equity of access to interviews for applicants in the virtual environment, however, they are overall less satisfied with their ability to showcase their program's strengths and to assess the personality of applicants. Caution is urged when considering a hybrid interview model to ensure fair assessments that do not depend on whether an applicant chooses to accept an optional in-person interview or site visit.

Modelling the Delta Covid-19 Wave in Mumbai

Using agent based simulator (ABS), we attempt to explain the infectiousness of the delta variant through scenario analysis to best match the observed fatality data in Mumbai, where the variant initially spread. Our somewhat prescient conclusion, based on analysis conducted in March-April 2021 was that the new variant was 2-2.5 times more infectious than the original Wuhan variant. We also observed then that certain performance measures such as timings of peaks and troughs were quite robust to the variations in model parameters and hence can be reliably projected even in presence of model uncertainties. Furthermore, we introduce enhancements to help model variants, vaccinations, basic and effective reproduction number in ABS. Our analysis suggests an interesting observation - although slums have around half of Mumbai population and are much more dense and have higher prevalence, the effective reproduction number between slums and non-slums equalises early on and largely moves together thereafter. © 2022 IEEE.

Postgraduate-Year-1 Residents' Perceptions of Social Media and Virtual Applicant Recruitment: Cross-sectional Survey Study.

BACKGROUND: The dissemination of information about residency programs is a vital step in residency recruitment. Traditional methods of distributing information have been printed brochures, websites, in-person interviews, and increasingly, social media. Away rotations and in-person interviews were cancelled, and interviews were virtual for the first time during the COVID-19 pandemic. OBJECTIVE: The purpose of our study was to describe postgraduate-year-1 (PGY1) residents' social media habits in regard to residency recruitment and their perceptions of the residency programs' social media accounts in light of the transition to virtual interviews. METHODS: A web-based 33-question survey was developed to evaluate personal social media use, perceptions of social media use by residency programs, and perceptions of the residency program content. Surveys were sent in 2021 to PGY1 residents at Mayo Clinic in Arizona, Florida, and Minnesota who participated in the 2020-2021 interview cycle. RESULTS: Of the 31 program directors contacted, 22 (71%) provided permission for their residents to complete the survey. Of 219 residents who received the survey, 67 (30%) completed the survey. Most respondents applied to a single specialty, and greater than 61% (41/67) of respondents applied to more than 30 programs. The social media platforms used most regularly by the respondents were Instagram (42/67, 63%), Facebook (36/67, 54%), and Twitter (22/67, 33%). Respondents used the program website (66/67, 99%), residents (47/67, 70%), and social media (43/67, 64%) as the most frequent resources to research programs. The most commonly used social media platforms to research programs were Instagram (38/66, 58%), Twitter (22/66, 33%), and Doximity (20/66, 30%). The type of social media post ranked as most interesting by the respondents was "resident life outside of the hospital." In addition, 68% (39/57) of the respondents agreed or strongly agreed that their perception of a program was positively influenced by the residency program's social media account. CONCLUSIONS: In this multispecialty survey of PGY1 residents participating in the 2020-2021 virtual interview season, respondents preferred Instagram to Twitter or Facebook for gathering information on prospective residency programs. In addition, the program website, current residents, and social media platforms were the top-ranked resources used by prospective applicants. Having an up-to-date website and robust social media presence, particularly on Instagram, may become increasingly important in the virtual interview environment.

Fate of Research Articles Reported by Ophthalmology Residency Applicants: What Happens to "Submitted" and "In Preparation" Articles?

OBJECTIVE: As coronavirus disease 2019 affects clinical training opportunities and with the transition of U.S. Medical Licensing Examination Step 1 to pass-fail, research may become increasingly important for evaluating ophthalmology residency applicants. Though publication misrepresentation has been studied among ophthalmology residency applicants, eventual publication rates of incomplete articles remain unknown. We aimed to determine publication rates for manuscripts listed as "submitted" or "in preparation" on ophthalmology residency applications and identify factors associated with unpublished manuscripts. DESIGN: San Francisco Match applications to the Wilmer Eye Institute for the 2019 ophthalmology residency cycle were retrospectively reviewed. Each applicant's number of "published," "submitted," and "in preparation" manuscripts was recorded, then verified 1.5 years later through PubMed, Google Scholar, or journal websites. Unverifiable manuscripts were deemed "unpublished." SETTING: Single academic institution (Wilmer Eye Institute, Baltimore, MD, USA) PARTICIPANTS: All 458 medical students who applied to the Wilmer Eye Institute for the 2019 ophthalmology residency cycle through the San Francisco Match. RESULTS: A total of 458 applications were reviewed. Of 428 "submitted" publications, 126 (29.4%) remained unpublished after 1.5 years. Of 324 manuscripts "in preparation," 215 (66.4%) remained unpublished. In a multivariate model, AOA was associated with not having an unpublished manuscript compared to applicants without AOA (OR: 0.423, p = 0.0163). Gender, Step 1 score, additional degrees, and a research year had no association. CONCLUSIONS: Nearly two-thirds of manuscripts listed as "in preparation" remained unpublished. Specific guidance from research mentors may help applicants better represent their publications in residency applications.

Understanding the Urology Program Directors Perspective on the Current Resident Selection Process: The Society of Academic Urologists National Survey of Urology Program Directors.

OBJECTIVE: The traditional residency selection process was altered dramatically by the SARS CoV-2 (COVID-19) pandemic. For the 2020-2021 application cycle in-person interviews were transitioned to the virtual format. What was thought to be a temporary transition has now become the new standard with continued endorsement from the Association of American Medical Colleges (AAMC) and the Society of Academic Urologists (SAU) for virtual interviews (VI). We sought to assess the perceived efficacy and satisfaction of the VI format from the urology residency program director's (PDs) perspective. DESIGN: A designated SAU Taskforce on "Optimizing the Applicant Experience in the Virtual Interview Era" developed and refined a survey composed of 69 questions on VI and was distributed to all urology program directors (PD) of member institutions of the SAU. The survey focused on candidate selection, faculty preparation, and interview day logistics. PDs were also asked to reflect on the impact of VI on their match results, recruitment of underrepresented minorities and female gender, and what their preference would be for future applications cycles. PARTICIPANTS: Urology residency PDs (84.7% response rate) between January 13, 2022 - February 10, 2022 were included in the study. RESULTS: Most programs interviewed a total of 36 to 50 applicants (80%), with an average of 10 to 20 applicants per interview day. The top 3 ranked criteria for interview selection reported by urology PDs surveyed included letters of recommendation, clerkship grades, and USMLE Step 1 score. The most common areas of formal training for faculty interviewers were diversity, equity and inclusion (55%), implicit bias (66%), and review of the SAU guidelines on illegal questions (83%). Over half (61.4%) of PDs believed that they were able to accurately represent their training program through the virtual platform, while 51% felt that VI did not afford similar assessments of applicant as in-person interviews. Two-thirds of PDs believed the VI platform improve access for all applicants to attend interviews. Focusing on the impact of the VI platform for recruitment of underrepresented minorities (URM) and female gender applicants, 15% and 24% reported improved visibility respectively for their program, and 24% and 11% reported increased ability to interview URM and female gender applicants respectively. Overall, in-person interviews were reported to be preferred by 42%, and 51% of PDs desired VIs to be included in future years. CONCLUSIONS: PDs opinion and role of the VIs into the future is variable. Despite uniform agreement of cost savings and belief that VI platform improves access for all, only half of PDs expressed interest of the VI format being continued in some form. PDs note limitation of VI in the ability to comprehensively assess applicants as well as the in-person format. Many programs have begun to incorporate vital training in the areas of diversity equity and inclusion bias, and illegal questions. There is a role for continued development and research on ways to optimize virtual interviews.

No Geographic Distribution Change Among Residency Applicants in the Neurology Match During COVID-19.

Objectives The COVID-19 pandemic posed a novel challenge for the 2020-2021 Match cycle resulting in a virtual interview season. The advent of virtual interviews raised concerns for both programs and medical students. The possibility of an impact on the application strategies for medical students resulting in students being more likely to remain in the region or state of their medical school was considered. We investigated whether there was a change in the geographic distribution of residency applicants for the class of 2025 (matched in 2021) as compared to the previous three application cycles (classes of 2022-2024) across all 168 neurology residency programs within the United States. Methods Publicly available data from neurology program websites were compiled to record the location of resident medical schools and matched programs for the residency classes of 2022-2025. Missing or ambiguous information was cross-referenced to social media, (e.g. LinkedIn and Twitter). Statistical analyses were conducted utilizing SPSS 26 (IBM SPSS 26 Statistics for Windows, Armonk, NY).  Results Across all four classes, regional retention (students matching in the same region) was 70.2% for the Northeast, 59.6% for the Midwest, 52.9% for the South, and 59.4% for the West. No significant change between the residency class of 2025 and the previous three classes was present. Discussion No significant change to the geographic trends for candidates was seen with the virtual interview process for the 2020-2021 neurology Match. As has been seen in other fields, a strong regional preference, with the majority of residents matching to programs in the same regions as their medical school, was seen for neurology.

The use of virtual interviews and new trends in orthopedic surgery residency match.

This retrospective cross-sectional study sought to determine if there was a change in geographical trends in the orthopedic surgery residency match with the use of virtual interviews. Due to the COVID-19 pandemic, visiting rotations at outside institutions were restricted and all residency interviews were conducted virtually for the 2021 match. Given these restrictions, it was hypothesized that applicants would match at a higher rate to their medical school-affiliated residency programs, or geographically nearby their medical school. Data was collected from residency program website and social media accounts to determine if the use of virtual interviews correlated with a decreased rate of matching at outside institutions. During the 2021 match, applicants who applied to orthopedic surgery in 2021 were more likely to match at their medical school-affiliated institution (OR, 1.46; 95% CI, 1.18-1.80; p < 0.01) compared to applicants during previous years. However, match rates were not different in terms of geographical regions. Virtual interviews are more cost-effective for both applicants and programs, however, this study demonstrates there are associated changes with this new interview structure. The utility of virtual interviews as a standard method in the future should take this change in trend into consideration.

The peptide link between pathogens and human centromere proteins

This work tested the hypothesis that infection causes unexplained production of anti-centromere protein antibodies (ACA) via autoimmune cross-reactivity. To further examine the clinical origin of ACA, the overlapped peptides between human pathogens, including viruses, bacteria and fungi and centromere proteins (CENP-A, CENP-B and CENP-C) were assessed. We found a broad overlap of pathogenetic peptides with human centromere proteins. These data indicate potential immune cross-reactivity between pathogens and human centromere proteins. Additionally, the current findings corroborate a molecular and mechanistic framework for autoimmune disorders related to infection. Moreover, preliminary evidence for a potential role of infection in ACA-related autoimmune diseases was presented. © 2022 The Scandinavian Foundation for Immunology.

The Student You Know: Orthopedic Surgery Home Program Match Rates and Geographic Relationships Before and After COVID-19.

OBJECTIVE: In March 2020, COVID-19 was declared a pandemic by the World Health Organization. This led to the outright cancellation of away rotations and in person residency interviews for the class of 2021. This study aims to identify the geographic relationships in the orthopedic match and further explore COVID-19's effect on these geographic relationships. Furthermore, we aim to compare the home program match rates before and after COVID-19. SETTING: Southern Illinois University School of Medicine, Department of Orthopedic Surgery (tertiary, university-based). DESIGN AND PARTICIPANTS: Residency websites and social media sites were used to record basic residency information as well as each resident's year, matriculated medical school, and matriculated medical school geographic data. This information was used to evaluate the proportion of orthopedic residents from "home program" medical schools and evaluate the geographic relationship of matched orthopedic residents. 202 Orthopedic residencies were initially identified and 134 allopathic and nonmilitary residency programs met the inclusion criteria. In all, 3253 of the 3931 (82.7%) current U.S orthopedic residents were included in the analysis. RESULTS: In the 4 orthopedic surgery residency classes before the pandemic (2017-2020), 21.8% of residency slots were filled by home program students. During the pandemic match cycle (2021), this number jumped to 28.2% (p < 0.0006). The increase was observed consistently across residency subgroup analysis: class size, doximity rank, and doximity research rank. Correspondingly, there was a statistically significant increase from 34.7% (2017-2020) to 39.3% (2021) (p = 0.0318) in residencies matching with same state medical students. Regional trends stayed consistent. Our study showed that residency programs matched applicants who went to same region medical schools during the 2020 to 2021 cycle at nearly the exact same rate as they did pre-pandemic (63.6%, up from 63.3%). CONCLUSIONS: Our study demonstrates that despite widespread virtual away rotations and virtual open houses, residency programs showed an increased preference for their home program students. This trend was significant and widespread, highlighting the generalized nationwide hesitation of both residency programs and students on the virtual interview process.