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Effect of Yoga on Frailty in Older Adults: A Systematic Review: Annals of Internal Medicine: Vol 176, No 4
Background: Yoga, a multicomponent mind–body practice, improves several domains of physical and psychological health and may affect frailty in older adults. Purpose: To evaluate the available trial evidence on the effect of yoga-based interventions on frailty in older adults. Data Sources: MEDLINE, EMBASE, and Cochrane Central from their inception to 12 December 2022. Study Selection: Randomized controlled trials evaluating the effect of yoga-based interventions, including at least 1 session of physical postures, on a validated frailty scale or single-item markers of frailty in adults aged 65 years or older. Data Extraction: Two authors independently screened articles and extracted data; 1 author assessed risk of bias with review from a second author. Disagreements were resolved through consensus and as-needed input from a third author. Data Synthesis: Thirty-three studies (n = 2384 participants) were identified in varied populations, including community dwellers, nursing home residents, and those with chronic disease. Yoga styles were primarily based on Hatha yoga and most often included Iyengar or chair-based methods. Single-item frailty markers included measures of gait speed, handgrip strength, balance, lower-extremity strength and endurance, and multicomponent physical performance measures; no studies included a validated definition of frailty. When compared with education or inactive control, there was moderate-certainty evidence that yoga improved gait speed and lower-extremity strength and endurance, low-certainty evidence for balance and multicomponent physical function measures, and very low-certainty evidence for handgrip strength. Limitation: Heterogeneity in study design and yoga style, small sample sizes, and reporting deficiencies leading to concerns for selection bias. Conclusion: Yoga may affect frailty markers that are associated with clinically meaningful outcomes in older adult populations but may not offer benefit over active interventions (for example, exercise). Primary Funding Source: None. (PROSPERO: CRD42020130303)
Effects of Cognitive Behavioral Therapy and Cash Transfers on Older Persons Living Alone in India: A Randomized Trial: Annals of Internal Medicine: Vol 176, No 5
Background: A growing number of older persons in developing countries live entirely alone and are physically, mentally, and financially vulnerable. Objective: To determine whether phone-based cognitive behavioral therapy (CBT) or a cash transfer reduce functional impairment, depression, or food insecurity in this population. Design: Randomized controlled trial. (ClinicalTrials.gov: NCT04225845; American Economic Association RCT Registry: AEARCTR-0007582). Setting: Tamil Nadu, India, 2021. Participants: 1120 people aged 55 years and older and living alone. Interventions: A 6-week, phone-based CBT and a 1-time cash transfer of 1000 rupees (U.S. $12 at market exchange rates) were evaluated in a factorial design. Measurements: The World Health Organization Disability Assessment Schedule (WHODAS), the Geriatric Depression Scale, and food security, all measured 3 weeks after CBT for 977 people and 3 months after for 932. Surveyors were blind to treatment assignment. Results: The WHODAS score (scale 0 to 48, greater values representing more impairment) decreased between baseline and the 3-week follow-up by 2.92 more (95% CI, −5.60 to −0.23) in the group assigned cash only than in the control group, and the depression score (ranging from 0 to 15, higher score indicating more depressive symptoms) decreased by 1.01 more (CI, −2.07 to 0.06). These effects did not persist to the 3-month follow-up, and CBT alone and the 2 together had no significant effects. There were no effects on food security. Limitations: The study cannot say whether more sustained or in-person therapy would have been effective, how results would translate outside of the COVID-19 period, or whether results in the consented sample differ from those in a larger population. Primary outcomes were self-reported. Conclusion: Among older people living alone, a small cash transfer was effective in alleviating short-term (3 weeks) functional impairment, produced a small but not clinically or statistically significant reduction in depression, and had no effect on food security. There were no short-term effects from CBT or the 2 interventions together. None of the interventions showed any effect at 3 months. Primary Funding Source: National Institute on Aging (NIA).
Would You Recommend a Statin to This Patient for Primary Prevention of Cardiovascular Disease?: Grand Rounds Discussion From Beth Israel Deaconess Medical Center: Annals of Internal Medicine: Vol 175, No 6
Cardiovascular disease (CVD) is the leading cause of death in the United States. Hypercholesterolemia is a principal modifiable risk factor for the primary prevention of CVD. In addition to lifestyle modification, statins are an important tool to reduce risk for CVD in selected patients. A useful strategy to identify candidates for statins is to estimate the 10-year risk for CVD through the use of a validated risk calculator. Commonly used calculators include the Framingham risk score and the pooled cohort equation. Multiple randomized controlled trials have shown that statins reduce the risk for CVD in patients without known CVD. Two recent guidelines have proposed an approach to the use of statins in primary prevention of CVD. The American College of Cardiology/American Heart Association and the U.S. Department of Veterans Affairs guidelines form the basis for this discussion. The guidelines differ on the use of advanced testing to modify the 10-year CVD risk estimate and on the need for low-density lipoprotein cholesterol targets to establish the efficacy of statins. Advanced testing with coronary artery calcium measurement may be helpful for patients who are potentially eligible for statin therapy but who are uncertain if they wish to take a statin. In this paper, 2 experts, a preventive cardiologist and a general internist, discuss their approach to the use of statins for primary prevention of CVD and how they would apply the guidelines to an individual patient.
Periconception Red Blood Cell Folate and Offspring Congenital Heart Disease: Nested Case–Control and Mendelian Randomization Studies: Annals of Internal Medicine: Vol 175, No 9
Background: Periconception folic acid supplementation has been suggested to protect against congenital heart disease (CHD), but the association between maternal red blood cell (RBC) folate, the gold-standard biomarker of folate exposure, and subsequent offspring CHD risk is lacking. Objective: To quantify the association between periconception maternal RBC folate and offspring CHD risk. Design: Prospective, nested, case–control study and 1-sample Mendelian randomization. (ClinicalTrials.gov: NCT02737644) Setting: 29 maternity institutions in 12 districts of Greater Shanghai, China. Participants: All 197 mothers of offspring with CHD and 788 individually matched mothers of unaffected offspring from the SPCC (Shanghai Preconception Cohort). Measurements: Maternal RBC folate was measured before or at early pregnancy. Odds ratios [ORs] were estimated using conditional logistic regression after adjustment for covariates. Mendelian randomization was done using the methylenetetrahydrofolate reductase (MTHFR) C677T as the genetic instrument. Results: Case patients had lower median maternal RBC folate concentrations than control participants (714 nmol/L [interquartile range, 482 to 1008 nmol/L] vs. 788 nmol/L [557 to 1094 nmol/L]). Maternal RBC folate concentrations were inversely associated with offspring CHD (adjusted OR per 100 nmol/L, 0.93 [95% CI, 0.89 to 0.99]). The adjusted OR for mothers with periconception RBC folate of 906 nmol/L or more (vs. <906 nmol/L) was 0.61 (CI, 0.40 to 0.93). Mendelian randomization showed that each 100-nmol increase in maternal RBC folate concentrations was significantly associated with reduced offspring CHD risk (OR, 0.75 [CI, 0.61 to 0.92]). Limitation: Potential confounding due to unmeasured covariates in the nested case–control study. Conclusion: Higher maternal RBC folate is associated with reduced offspring CHD risk. For primary CHD prevention, higher target RBC folate levels than currently recommended for neural tube defect prevention may be needed and warrant further study. Primary Funding Source: National Key Research and Development Program of China, National Natural Science Foundation of China, China Postdoctoral Science Foundation, and Chinese Academy of Medical Sciences Innovation Fund for Medical Sciences.
How the Gender Wage Gap for Primary Care Physicians Differs by Compensation Approach: A Microsimulation Study: Annals of Internal Medicine: Vol 175, No 8
Background: The physician gender wage gap may be due, in part, to productivity-based compensation models that undervalue female practice patterns. Objective: To determine how primary care physician (PCP) compensation by gender differs when applying existing productivity-based and alternative compensation models. Design: Microsimulation. Setting: 2016 to 2019 national clinical registry of 1222 primary care practices. Participants: Male and female PCPs matched on specialty, years since medical school graduation, practice site, and sessions worked. Measurements: Net annual, full-time-equivalent compensation for male versus female PCPs, under productivity-based fee-for-service, panel size–based capitation without or with risk adjustment, and hybrid payment models. Microsimulation inputs included patient and visit characteristics and overhead expenses. Results: Among 1435 matched male (n = 881) and female (n = 554) PCPs, female PCP panels included patients who were, on average, younger, had lower diagnosis-based risk scores, were more often female, and were more often uninsured or insured by Medicaid rather than by Medicare. Under productivity-based payment, female PCPs earned a median of $58 829 (interquartile range [IQR], $39 553 to $120 353; 21%) less than male PCPs. This gap was similar under capitation ($58 723 [IQR, $42 141 to $140 192]). It was larger under capitation risk-adjusted for age alone ($74 695 [IQR, $42 884 to $152 423]), for diagnosis-based scores alone ($114 792 [IQR, $49 080 to $215 326] and $89 974 [IQR, $26 175 to $173 760]), and for age-, sex-, and diagnosis-based scores ($83 438 [IQR, $28 927 to $129 414] and $66 195 [IQR, $11 899 to $96 566]). The gap was smaller and nonsignificant under capitation risk-adjusted for age and sex ($36 631 [IQR, $12 743 to $73 898]). Limitation: Panel attribution based on office visits. Conclusion: The gender wage gap varied by compensation model, with capitation risk-adjusted for patient age and sex resulting in a smaller gap. Future models might better align with primary care effort and outcomes. Primary Funding Source: None.
A Framework for the Development of Living Practice Guidelines in Health Care
Background: Living practice guidelines are increasingly being used to ensure that recommendations are responsive to rapidly emerging evidence. Objective: To develop a framework that characterizes the processes of development of living practice guidelines in health care. Design: First, 3 background reviews were conducted: a scoping review of methods papers, a review of handbooks of guideline-producing organizations, and an analytic review of selected living practice guidelines. Second, the core team drafted the first version of the framework. Finally, the core team refined the framework through an online survey and online discussions with a multidisciplinary international group of stakeholders. Setting: International. Participants: Multidisciplinary group of 51 persons who have experience with guidelines. Measurements: Not applicable. Results: A major principle of the framework is that the unit of update in a living guideline is the individual recommendation. In addition to providing definitions, the framework addresses several processes. The planning process should address the organization's adoption of the living methodology as well as each specific guideline project. The production process consists of initiation, maintenance, and retirement phases. The reporting should cover the evidence surveillance time stamp, the outcome of reassessment of the body of evidence (when applicable), and the outcome of revisiting a recommendation (when applicable). The dissemination process may necessitate the use of different venues, including one for formal publication. Limitation: This study does not provide detailed or practical guidance for how the described concepts would be best implemented. Conclusion: The framework will help guideline developers in planning, producing, reporting, and disseminating living guideline projects. It will also help research methodologists study the processes of living guidelines. Primary Funding Source: None.