Arm Position and Blood Pressure Readings: The ARMS Crossover Randomized Clinical Trial.

Importance: Guidelines for blood pressure (BP) measurement recommend arm support on a desk with the midcuff positioned at heart level. Still, nonstandard positions are used in clinical practice (eg, with arm resting on the lap or unsupported on the side). Objective: To determine the effect of different arm positions on BP readings. Design, Setting, and Participants: This crossover randomized clinical trial recruited adults between the ages of 18 and 80 years in Baltimore, Maryland, from August 9, 2022, to June 1, 2023. Intervention: Participants were randomly assigned to sets of triplicate BP measurements with the arm positioned in 3 ways: (1) supported on a desk (desk 1; reference), (2) hand supported on lap (lap), and (3) arm unsupported at the side (side). To account for intrinsic BP variability, all participants underwent a fourth set of BP measurements with the arm supported on a desk (desk 2). Main Outcomes and Measures: The primary outcomes were the difference in differences in mean systolic BP (SBP) and diastolic BP (DBP) between the reference BP (desk 1) and the 2 arm support positions (lap and side): (lap or side - desk 1) - (desk 2 - desk 1). Results were also stratified by hypertensive status, age, obesity status, and access to health care within the past year. Results: The trial enrolled 133 participants (mean [SD] age, 57 [17] years; 70 [53%] female); 48 participants (36%) had SBP of 130 mm Hg or higher, and 55 participants (41%) had a body mass index (calculated as weight in kilograms divided by height in meters squared) of 30 or higher. Lap and side positions resulted in statistically significant higher BP readings than desk positions, with the difference in differences as follows: lap, SBP Δ 3.9 (95% CI, 2.5-5.2) mm Hg and DBP Δ 4.0 (95% CI, 3.1-5.0) mm Hg; and side, SBP Δ 6.5 (95% CI, 5.1-7.9) mm Hg and DBP Δ 4.4 (95% CI, 3.4-5.4) mm Hg. The patterns were generally consistent across subgroups. Conclusion and Relevance: This crossover randomized clinical trial showed that commonly used arm positions (lap or side) resulted in substantial overestimation of BP readings and may lead to misdiagnosis and overestimation of hypertension. Trial Registration: ClinicalTrials.gov Identifier: NCT05372328.

Public support for logbooks during the supervised practice driving phase of graduated driver licensing: a national survey of teens and parents in the USA.

BACKGROUND: Verification of the completion of supervised practice driving hours for teenagers is challenging. Electronic logbooks could provide an objective alternative to paper logbooks. Factors influencing the adoption of electronic logbooks are poorly understood. We conducted a survey of a nationally representative sample of teenagers and parents in the USA to address these gaps in understanding. METHODS: The survey was fielded to teenagers who were currently learning to drive or had a full driver's licence, and parents of teenager with a learner's permit or a driver's licence. We measured (1) support for supervised practice driving requirements and logbook requirements, (2) preferences between paper and electronic logbooks and (3) features that would make an electronic logbook useful. RESULTS: Most parents and teenagers supported both supervised practice driving and logbook requirements. The overwhelming majority of teenagers and parents preferred an electronic logbook over paper. Electronic logbooks that provide (1) summary information about completed drives, (2) parent certification of drives and (3) automatic trip detection were features that were rated most useful by respondents. DISCUSSION: This is the first study to measure teen and parent support for the logbook format to track supervised practice driving. Public support for electronic logbooks is high, suggesting that policy makers could consider adding an electronic logbook requirement to graduated driver licensing systems to objectively measure completed practice driving hours. Driver educators could also promote the use electronic logbooks to track practice and calibrate behind-the-wheel lessons to the amount of practice driving that has been completed.

Prevalence and Use of Driver Monitoring Systems: A National Survey in the United States.

The purpose of this study was to measure the prevalence of use of driver monitoring systems among U.S. adults, and factors influencing their adoption. One in five U.S. adults has used driver monitoring, primarily to obtain a discount on insurance. Safety benefits and financial incentives are likely to influence adoption.

The Effect of Racial, Ethnic, and Socioeconomic Differences on Visual Impairment before Cataract Surgery.

PURPOSE: To compare the associations of race, ethnicity, and socioeconomic status (SES) with visual impairment (VI) before surgical removal of cataracts across 2 health systems in the United States Mid-Atlantic region. DESIGN: Multi-institutional cross-sectional study. PARTICIPANTS: Patients ≥ 65 years of age who underwent cataract surgery at Johns Hopkins Hospital (JHH) and Kaiser Permanente (KP) between January 1, 2017, and December 31, 2019. METHODS: Covariates included patient age, sex, smoking status, surgery laterality, Charlson comorbidity index, and ocular comorbidities. Multivariable generalized estimating equation models were used to examine the association of race, ethnicity, and area deprivation index (ADI) with visual acuity. MAIN OUTCOME MEASURES: Visual acuity before cataract surgery was assessed using logarithm of minimum angle of resolution values. Race, ethnicity, and ADI were the main exposures of interest. RESULTS: At JHH, 11 509 patients (17 731 eyes) were included, whereas KP included 7143 patients (10 542 eyes). After adjusting for covariates, Black patients (ß = 0.49), Asian patients (ß = 0.83), and Hispanic patients (ß = 0.95) were more likely to have worse visual acuity at JHH (P < 0.001 for all) compared with White patients. Similarly, at KP, Black patients (ß = 0.56), Asian patients (ß = 0.70), and Hispanic patients (ß = 0.89) were more likely to have worse visual acuity (P < 0.001 for all) compared with White patients. Compared with those living in the least disadvantaged neighborhoods at JHH, higher ADI quartiles (more deprived) were more likely to have worse visual acuity (ß = 0.27 [P < 0.001] for quartile 2; ß = 0.40 [P = 0.001] for quartile 3; ß = 0.95 [P < 0.001] for quartile 4). No significant association was found between ADI and VI at KP. CONCLUSIONS: Among older adults, non-White race or ethnicity was associated independently with VI secondary to cataracts in 2 large health systems in the United States Mid-Atlantic region, after adjustment for ADI. Area deprivation also was associated with VI but only in the JHH system. Our study suggests that non-White patients and those with lower SES are at greater risk of VI secondary to cataracts possibly because of social, structural, and institutional barriers. FINANCIAL DISCLOSURE(S): Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.

Prevalence and Profiles of Risky Driving Behavior Among US Teenagers.

This survey study updates prevalence data on risky driving behaviors in a nationally representative sample of young people in the US and characterizes profiles of drivers according to the types of risky behaviors they engaged in.

Upper-Extremity Nerve Transfers for Sensation: A Systematic Review.

PURPOSE: Sensory nerve transfers may be performed to restore protective sensation and tactile perception after peripheral nerve injury in the upper extremity. There is a paucity of literature on the available donor-recipient configurations for sensory nerve transfers. This article presents a systematic review of reported sensory nerve transfers in the upper extremity. METHODS: Original articles published between 1982 and 2022 were searched in MEDLINE and EMBASE. Articles describing a sensory nerve transfer were included if patient sensory outcomes were reported. Outcomes were categorized according to the modified British Medical Research Council scale, with an outcome of S3 or better defined as satisfactory. RESULTS: Of 1,049 articles, 39 met inclusion and quality criteria. Twenty-seven articles were primary research studies reporting on 197 patients who underwent 11 unique nondigital sensory donor nerve transfers and 24 unique digital donor nerve transfer procedures. The most reliable recipient nerve for restoring sensation to the ulnar border of the small finger was proper ulnar digital nerve of the small finger (38 patients, 89% satisfactory sensory outcome). The best available donors for transfer into the proper ulnar digital nerve of the small finger were proper ulnar digital nerve of the long finger (16 patients, 87.5% good sensory outcome) and palmar cutaneous branch of the median nerve (15 patients, 100% good sensory outcome). To restore sensation along the ulnar border of the thumb and radial aspect of the index finger, the best available donor was the superficial branch of the radial nerve, regardless of transfer into common digital nerve 1 (38 patients, success rate 63%) or directly to proper ulnar digital nerve of the thumb or proper radial digital nerve of the index finger (nine patients, success rates 67%). CONCLUSIONS: Outcomes after sensory nerve transfers are generally good. Surgeons should transfer into a digital nerve recipient when attempting to reconstruct sensation. TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic IV.

Perspectives on Application and Interview Capping in Residency Selection of Surgical Subspecialties.

OBJECTIVE: With the advent of virtual interviews, the potential for interview hoarding by applicants became of greater concern due to lack of financial constraints associated with in-person interviewing. Simultaneously, the average number of applications submitted each year is rising. Currently there is no cap to the number of applications or interviews an applicant may complete when applying to residency, with the exception of ophthalmology with a cap of 15 interviews. No studies have assessed the applicants' perspectives on an application or interview cap. We assessed the attitudes of surgical subspecialty applicants towards capping, which may be useful when considering innovations in residency selection. DESIGN/SETTING/PARTICIPANTS: About 1841 applicants to the Johns Hopkins' ophthalmology, urology, plastic surgery, and orthopedic surgery residency programs from the 2022-2023 cycle were invited to respond to a 22-item questionnaire. Statistical analyses of aggregate data were conducted using R. RESULTS: Of the 776/1841 (42%) responses, 288 (40%) were in support of an application cap, while 455 (63%) were in support of an interview cap. Specialty (p < 0.001), gender (p < 0.001), taking a gap year (p = 0.02), medical school region (p = 0.04), and number of interviews accepted off of a waitlist (p = 0.01) were all significantly associated with a difference in opinion regarding an application cap. Specialty (p < 0.001), USMLE Step 1 score (p = 0.004), number of interviews (p < 0.001), and number of programs ranked (p < 0.001) were all significantly associated with a difference in opinion regarding an interview cap. Of those applicants who were in support of the respective caps they believed that on average a cap should consist of 48.1 (16.1) applications and 16.0 (8.0) interviews. CONCLUSIONS: Our findings highlight the desire for interview caps among the majority of applicants to surgical subspecialties and thus this innovation may be considered by other specialties in the era of virtual interviews.

Mortality risk prediction for primary appendiceal cancer.

BACKGROUND: Accurately predicting survival in patients with cancer is crucial for both clinical decision-making and patient counseling. The primary aim of this study was to generate the first machine-learning algorithm to predict the risk of mortality following the diagnosis of an appendiceal neoplasm. METHODS: Patients with primary appendiceal cancer in the Surveillance, Epidemiology, and End Results database from 2000 to 2019 were included. Patient demographics, tumor characteristics, and survival data were extracted from the Surveillance, Epidemiology, and End Results database. Extreme gradient boost, random forest, neural network, and logistic regression machine learning models were employed to predict 1-, 5-, and 10-year mortality. After algorithm validation, the best-performance model was used to develop a patient-specific web-based risk prediction model. RESULTS: A total of 16,579 patients were included in the study, with 13,262 in the training group (80%) and 3,317 in the validation group (20%). Extreme gradient boost exhibited the highest prediction accuracy for 1-, 5-, and 10-year mortality, with the 10-year model exhibiting the maximum area under the curve (0.909 [±0.006]) after 10-fold cross-validation. Variables that significantly influenced the predictive ability of the model were disease grade, malignant carcinoid histology, incidence of positive regional lymph nodes, number of nodes harvested, and presence of distant disease. CONCLUSION: Here, we report the development and validation of a novel prognostic prediction model for patients with appendiceal neoplasms of numerous histologic subtypes that incorporate a vast array of patient, surgical, and pathologic variables. By using machine learning, we achieved an excellent predictive accuracy that was superior to that of previous nomograms.

Public Support for Vehicle Technology to Prevent Operation by Impaired Drivers.

This survey study measures public support for vehicle impairment prevention technology in the US.

CEO duality and firm performance during the 2020 coronavirus outbreak.

Stewardship theory suggests that CEO duality can provide strong leadership and facilitate the development and coordination of firm strategy. These benefits should affect firm risk and financial performance, particularly when the firm has high information-gathering costs. We use the 2020 coronavirus outbreak as a natural experiment to determine whether CEO duality is beneficial during crisis periods. We find that in 2020, S&P 1500 firms with CEO duality exhibit smaller increases in default probability risk than firms with non-duality in the presence of high information costs. Firms with CEO duality experience a smaller decrease in profitability when information costs are high. We also find that firms with CEO duality offer cumulative abnormal returns significantly higher than those of other firms. CEO duality is more valuable in firms with higher information costs. Our results indicate that CEO duality is valuable during crisis periods, particularly when information costs are high. These results are consistent with stewardship theory and indicate that the concentration of power from CEO duality is beneficial during crisis periods.

Predictors of COVID-19 vaccination rate in USA: A machine learning approach.

In this study, we examine state-level features and policies that are most important in achieving a threshold level vaccination rate to curve the effects of the COVID-19 pandemic. We employ CHAID, a decision tree algorithm, on three different model specifications to answer this question based on a dataset that includes all the states in the United States. Workplace travel emerges as the most important predictor; however, the governors' political affiliation (PA) replaces it in a more conservative feature set that includes economic features and the growth rate of COVID-19 cases. We also employ several alternative algorithms as a robustness check. Results from these checks confirm our original findings regarding workplace travels and political affiliation. The accuracy under different model specifications ranges from 80%-88%, whereas the sensitivity is between 92.5%-100%. Our findings provide actionable policy insights to increase vaccination rates and combat the COVID-19 pandemic.