W boson mass measurement is sensitive to QED radiative corrections due to virtual photon loops and real photon emission. The largest shift in the measured mass, which depends on the transverse momentum spectrum of the charged lepton from the boson decay, is caused by the emission of real photons from the final-state lepton. There are a number of calculations and codes available to model the final-state photon emission. We perform a detailed study, comparing the results from horace and photos implementations of the final-state multiphoton emission in the context of a direct measurement of W boson mass at Tevatron. Mass fits are performed using a simulation of the CDF II detector.

Cancer screening decisions in older adults can be complex due to the unclear cancer-specific mortality benefits of screening and several known harms including false positives, overdiagnosis, and procedural complications from downstream diagnostic interventions. In this review, we provide a framework for individualized cancer screening decisions among older adults, involving accounting for overall health and life expectancy, individual values, and the risks and benefits of specific cancer screening tests. We then discuss strategies for effective communication of recommendations during clinical visits that are considered more effective, easy to understand, and acceptable by older adults and clinicians.

Purpose of review

We summarize the evidence of benefits, harms, and tools to assist in individualized decisions among older adults in screening for breast, prostate, colon, lung, and cervical cancer.

Recent findings

The benefits of cancer screening in older adults remain unclear due to minimal inclusion of adults > 75 years old in most randomized controlled trials. Indirect evidence suggests that the benefits of screening seen in younger adults (< 70 years old) can be extrapolated to older adults when they have an estimated life expectancy of at least 10 years. However, older adults, especially those with limited life expectancy, may be at increased risk for experiencing harms of screening, including overdiagnosis of clinically unimportant diseases, complications from diagnostic procedures, and distress after false positive test results. We provide a framework to integrate key factors such as health status, risks and benefits of specific tests, and patient preferences to guide clinicians in cancer screening decisions in older adults.

BACKGROUND: Social isolation is common in the last years of life, especially among individuals with cognitive impairment (CI), but it is unknown if social isolation is related to end-of-life health care use. METHODS: We used nationally-representative 2006-2018 Health and Retirement Study (HRS) data linked to Medicare claims, including adults age ≥65 interviewed in the last 4 years of life (N = 2380). We used a validated social isolation scale and three social isolation subscales: (1) household contacts (marital status, household size, nearby children), (2) social network interaction (with children, family, and friends), and (3) community engagement. End-of-life health outcomes included 2+ emergency department (ED) visits in the last month of life, hospitalizations or ICU stays in the last 6 months of life, and any hospice use. CI was defined using the validated Langa-Weir methodology. We used logistic regression to test the association of each social isolation measure with each end-of-life outcome, adjusted for sociodemographic covariates, and tested for interaction terms with CI (p < 0.2). RESULTS: The mean age of our sample of decedents was 81.2 (SD = 9.9), 53% were female, 8% Black, and 4% Hispanic. Overall, social isolation and the community engagement subscale were not associated with end-of-life health care use. Fewer household contacts were associated with lower hospice use (aOR = 0.74, p = 0.005). There were significant interaction terms between the social network interaction subscale and CI for ED use (p = 0.009) and hospitalizations (p = 0.04), and a trend for ICU stays (p = 0.15); individuals with both low social network interaction and CI had lower health care use across all three outcomes compared to other groups. CONCLUSIONS: Individuals with fewer household contacts had lower hospice use, and cognitively impaired individuals with low social network interaction had fewer end-of-life ED visits, hospitalizations, and ICU stays. Clinicians should consider mobilizing external support services to ensure access to goal-concordant care for older adults with limited end-of-life social contact when needed.

This article draws on investigations by its authors, and from American and Italian interventions to provide recommendations for decreasing social isolation in older adults for policy makers, researchers, and other professionals committed to supporting the improved social integration of older adults. The article argues that to mitigate social isolation it is critical to foster a sense of belonging (personal involvement in a system or environment so people feel they are an integral part of that system or environment). Suggestions are provided on how to leverage systematic interventions to foster isolated older adults' sense of belonging to their communities.

Background

Homebound older adults have heightened risks for isolation and negative health consequences, but it is unclear how COVID-19 has impacted them. We examine social contact and mood symptoms among previously homebound older adults during the COVID-19 pandemic.

Design/setting

Cross-sectional analysis using data from the National Health and Aging Trends Study (NHATS), a nationally-representative longitudinal study of aging in the USA.

Participants

A total of 3,112 community-dwelling older adults in 2019 who completed the COVID-19 survey in the summer/fall of 2020.

Measurements

Homebound status was defined via self-report as rarely/never leaving home or leaving the house with difficulty or help in the prior month. We measured limited social contact during COVID-19 (in-person, telephone, video or email contacts ResultsAmong homebound older adults, 13.2% experienced limited social contact during COVID-19 vs. 6.5% of the non-homebound. Differences in social contact were greatest for contacts via email/text/social media: 54.9% of the homebound used this DiscussionIsolation among homebound older adults increased during COVID-19, partially due to differences in technology use. We must ensure that homebound persons have the connection and care they need including new technologies for communication during and beyond COVID-19.

We consider diverse examples of science goals that provide a framework to assess luminosity goals for a future 100-TeV proton-proton collider.

Telemedicine has the potential to improve access to cancer care, particularly for patients with functional limitations, high symptom burdens, or financial or geographic constraints. However, there is also a risk that telemedicine can widen healthcare disparities among patients facing systemic disadvantages like those with technological barriers, poor digital literacy, older age, or non-English language preferences. To optimize telemedicine usage, we must implement practical strategies like video onboarding programs, user-friendly technology platforms, optimizing the clinicians environment, and best practices for using interpreters. Policy changes such as state licensing requirements, controlled substance prescribing requirements, and payment parity are also crucial. This Perspective highlights these practical strategies and policy recommendations to ensure accessible and equitable cancer care augmented by telemedicine.

BACKGROUND: With an aging population, older adults are increasingly serving as caregivers to others, which may increase their risk of adverse interpersonal experiences. OBJECTIVE: To investigate the prevalence and types of elder mistreatment experienced by older caregiving adults. DESIGN: Cross-sectional analysis PARTICIPANTS: National sample of community-dwelling US adults over age 60 in 2015-2016. MAIN MEASURES: Caregiving (assisting another adult with day-to-day activities) was assessed by interviewer-administered questionnaires. Experience of elder mistreatment was assessed by participant-reported questionnaire in three domains: emotional, physical, and financial. Multivariable logistic regression models examined associations between caregiving status and each domain of elder mistreatment, adjusting for age, race, ethnicity, gender, education, marital status, concomitant care-receiving status, overall physical and mental health, and cognitive function. Additional logistic regression models examined associations between being the primary caregiver (rather than a secondary caregiver) and each domain of mistreatment among older caregivers. KEY RESULTS: Of the 1898 participants over age 60 (including 1062 women and 836 men, 83% non-Hispanic white, and 64% married or partnered), 14% reported serving as caregivers for other adults, including 8% who considered themselves to be the primary caregiver. Among these older caregivers, 38% reported experiencing emotional, 32% financial, and 6% physical mistreatment after age 60. In multivariable models, caregiving was associated with experiencing both emotional mistreatment (AOR 1.61, 95% CI 1.15-2.25) and financial mistreatment (AOR 1.72, 95% CI 1.18-2.50). In analyses confined to caregiving older adults, those who served as primary rather than secondary caregivers for other adults had an over two-fold increased odds of emotional mistreatment (AOR 2.17, 95% CI 1.07, 4.41). CONCLUSION: In this national cohort of older community-dwelling adults, caregiving was independently associated with experiencing emotional and financial mistreatment after age 60. Findings suggest that efforts to prevent or mitigate elder mistreatment should put more emphasis on vulnerable older caregivers.

This paper describes the evaluation of a longitudinal peer-support program developed to address loneliness and isolation among low-income, urban community-dwelling older adults in San Francisco. Our objective was to determine barriers, challenges, and successful strategies in implementation of the program. In-depth qualitative interviews with clients (n = 15) and peers (n = 6) were conducted and analyzed thematically by program component. We identified barriers and challenges to engagement and outlined strategies used to identify clients, match them with peers, and provide support to both peers and clients. We found that peers played a flexible, non-clinical role and were perceived as friends. Connections to community resources helped when clients needed additional support. We also documented creative strategies used to maintain inter-personal connections during the COVID-19 pandemic. This study fills a gap in understanding how a peer-support program can be designed to address loneliness and social isolation, particularly in low-income, urban settings.