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1.
South Med J ; 115(2): 139-143, 2022 02.
Article in English | MEDLINE | ID: mdl-35118504

ABSTRACT

OBJECTIVE: To examine associations between bedside rounding (BSR) and other rounding strategies (ORS) with resident evaluations of teaching attendings and self-reported attending characteristics. METHODS: Faculty from three academic medical centers who attended resident teaching services for ≥4 weeks during the 2018-2019 academic year were invited to complete a survey about personal and rounding characteristics. The survey instrument was iteratively developed to assess rounding strategy as well as factors that could affect choosing one rounding strategy over another. Survey results and teaching evaluation scores were linked, then deidentified and analyzed in aggregate. Included evaluation items assessed resident perceptions of autonomy, time management, professionalism, and teaching effectiveness, as well as a composite score (the numeric average of each attending's scores for all of the items at his or her institution). BSR was defined as spending >50% of rounding time in patients' rooms with the team. Hallway rounding and conference room rounding were combined into the ORS category and defined as >50% of rounding time in these settings. All of the scores were normalized to a 10-point scale to allow aggregation across sites. RESULTS: A total of 105 attendings were invited to participate, and 65 (62%) completed the survey. None of the resident evaluation scores significantly differed based on rounding strategy. Composite scores were similar for BSR and ORS (difference of <0.1 on a 10-point scale). Spearman correlation coefficients identified no statistically significant correlation between rounding strategy and evaluation scores. An exploratory analysis of variance model identified no single factor that was significantly associated with composite teaching scores (P > 0.45 for all) or the domains of teaching efficacy, professionalism, or autonomy (P > 0.13 for all). Having a formal educational role was significantly associated with better evaluation scores for time management, and the number of lectures delivered per year approached statistical significance for the same domain. CONCLUSIONS: Conducting BSR did not significantly affect resident evaluations of teaching attendings. Resident perception of teaching effectiveness based on rounding strategy should be neither a motivator nor a barrier to widespread institution of BSR.


Subject(s)
Education, Medical, Graduate/standards , Medical Staff, Hospital/education , Teaching Rounds/standards , Education, Medical, Graduate/methods , Humans , Internal Medicine/education , Internship and Residency/methods , Internship and Residency/standards , Internship and Residency/statistics & numerical data , Medical Staff, Hospital/psychology , Medical Staff, Hospital/statistics & numerical data , Surveys and Questionnaires , Teaching Rounds/methods , Teaching Rounds/statistics & numerical data
2.
South Med J ; 112(6): 338-343, 2019 06.
Article in English | MEDLINE | ID: mdl-31158889

ABSTRACT

OBJECTIVE: Academic medical centers face unique challenges in educating physician trainees in effective discharge practices to prevent readmissions. Meanwhile, residents must handle high workloads coupled with frequent rotations to different services. This study aimed to determine whether daily service census, service turnover, time of discharge, and day of discharge increase the risk of 30-day readmission. METHODS: All of the discharges from two academic general internal medicine teaching services between October 1, 2013 and September 30, 2014 were included in this observational data analysis. Variables were fit to a 30-day, all-cause readmission outcome using multiple logistic regression with inverse probability of treatment weighting and multiple imputations with chained equations. The following potential confounding variables were included in the model: health system utilization, demographics, laboratory values, and comorbidities. RESULTS: Among 1935 total discharges, 258 patients (13.3%) were readmitted within 30 days of the index discharge. Turnover, service census, weekend discharge, and time of discharge were not significantly associated with the risk of readmission. Patients discharged during holiday periods had higher odds of readmission (odds ratio 2.56, 95% confidence interval 2.01-3.25), whereas patients discharged on an intern switch day had lower odds of readmission (odds ratio 0.33, 95% confidence interval 0.27-0.41). CONCLUSIONS: Patients who are discharged during holiday periods are at a higher risk of readmission after adjusting for potential confounders. These results also suggest that discharge on an intern switch day had a protective effect on readmission. Further work is needed to examine whether these findings can be replicated, and, if confirmed, to determine to what extent these associations are causal.


Subject(s)
Continuity of Patient Care , Holidays , Internal Medicine , Patient Readmission/statistics & numerical data , Academic Medical Centers , Adult , Aged , Female , Humans , Male , Middle Aged , North Carolina , Risk Factors , Time Factors
3.
Med Educ Online ; 24(1): 1596708, 2019 Dec.
Article in English | MEDLINE | ID: mdl-30973089

ABSTRACT

BACKGROUND: Filming teaching sessions were reported in the medical literature in the 1980s and 1990s but appear to have been an underreported and/or underutilized teaching tool since that time. National faculty development programs, such as the Harvard Macy Institute (HMI) Program for Educators in Health Professions and the Stanford Faculty Development Center for Medical Teachers program, have attempted to bridge this gap in formal instruction in teaching skills through microteaching sessions involving videos for self- and peer-assessment and feedback. OBJECTIVE: Current video-feedback faculty development initiatives are time intensive and impractical to implement broadly at an institutional level. Further, results of peer feedback have not been frequently reported in the literature at the institutional level. Our research aims to propose a convenient and effective process for incorporating video analysis into faculty devleopment programs. DESIGN: Our work describes a novel technique using video-recorded, simulated teaching exercises to compile multi-dimensional feedback as an aid in faculty development programs that promote teaching-skill development. This research evaluated the effectiveness of a focused teaching practicum designed for faculty in multiple specialty departments with large numbers of older patients into a geriatrics-based faculty development program. Effectiveness of the practicum is evaluated using quantitative scoring and qualitative analysis of self-reflection as well as peer and trainee input. RESULTS: VOTE sessions demonstrate an important exportable product which enable faculty to receive a detailed 360-degree assessment of their teaching. CONCLUSION: This intervention can be easily replicated and revised, as needed, to fit into the educational curriculum at other academic medical centers.


Subject(s)
Education, Medical/organization & administration , Faculty, Medical/standards , Formative Feedback , Staff Development/organization & administration , Teaching/organization & administration , Curriculum , Education, Medical/standards , Humans , Program Development , Teaching/standards , Video Recording
4.
Med Clin North Am ; 102(3): 509-519, 2018 May.
Article in English | MEDLINE | ID: mdl-29650072

ABSTRACT

Bedside hospital rounds promote patient-centered care in teaching and nonteaching settings. Patients and families prefer bedside rounds and provider acceptance is increasing. Efficient bedside rounds with an interprofessional team or with learners requires preparation of the patient and the rounding team. Bedside "choreography" provides structure and sets expectations for time spent in the room. By using relationship-centered communication, rounds can be both patient proximate and patient centered. The clinical examination can be integrated into the flow of the presentation and case discussion. Patient and provider experience can be enhanced through investing time at the bedside.


Subject(s)
Patient-Centered Care/methods , Physical Examination , Teaching Rounds/methods , Attitude of Health Personnel , Clinical Competence/standards , Communication , Humans , Patient Care Team
5.
J Grad Med Educ ; 9(3): 338-344, 2017 Jun.
Article in English | MEDLINE | ID: mdl-28638514

ABSTRACT

BACKGROUND: Adults aged 65 years and older account for more than 33% of annual visits to internal medicine (IM) generalists and specialists. Geriatrics experiences are not standardized for IM residents. Data are lacking on IM residents' continuity experiences with older adults and competencies relevant to their care. OBJECTIVE: To explore patient demographics and the prevalence of common geriatric conditions in IM residents' continuity clinics. METHODS: We collected data on age and sex for all IM residents' active clinic patients during 2011-2012. Academic site continuity panels for 351 IM residents were drawn from 4 academic medical center sites. Common geriatric conditions, defined by Assessing Care of Vulnerable Elders measures and the American Geriatrics Society IM geriatrics competencies, were identified through International Classification of Disease, ninth edition, coded electronic problem lists for residents' patients aged 65 years and older and cross-checked by audit of 20% of patients' charts across 1 year. RESULTS: Patient panels for 351 IM residents (of a possible 411, 85%) were reviewed. Older adults made up 21% of patients in IM residents' panels (range, 14%-28%); patients ≥ 75 (8%) or 85 (2%) years old were relatively rare. Concordance between electronic problem lists and chart audit was poor for most core geriatric conditions. On chart audit, active management of core geriatric conditions was variable: for example, memory loss (10%-25%), falls/gait abnormality (26%-42%), and osteoporosis (11%-35%). CONCLUSIONS: The IM residents' exposure to core geriatric conditions and management of older adults was variable across 4 academic medical center sites and often lower than anticipated in community practice.


Subject(s)
Geriatrics/education , Internal Medicine/education , Internal Medicine/standards , Internship and Residency , Aged , Aged, 80 and over , Chronic Disease/epidemiology , Clinical Competence , Continuity of Patient Care , Humans , Outpatient Clinics, Hospital , Physicians , Prevalence , Primary Health Care , United States/epidemiology
6.
Gerontol Geriatr Educ ; 38(3): 346-353, 2017.
Article in English | MEDLINE | ID: mdl-26885576

ABSTRACT

The authors evaluated the feasibility of a 1-hour session to ensure competency in gait and falls risk assessment for medical students at their institution. The session included a history and exam with faculty and staff as standardized patients, gait recognition videos, and case evaluation for falls risk assessment and prevention. Student perceptions were evaluated using a retrospective pre-post survey, scored on a 5-point Likert-type scale. Wilcoxon signed-rank tests were used to assess change and Kruskal-Wallis tests were used to analyze differences by residency choice. A range of five to 11 faculty and staff certified 238 medical students during eight 1-hour sessions. Overall self-perception of competence in falls risk assessment and prevention improved (p ≤ .001), and did not differ by residency choice, both before and after the training program (p = .73 and p = .25). Feedback was positive. This session is a feasible way to teach and assess the competency for falls risk assessment with modest time commitment.


Subject(s)
Accidental Falls/prevention & control , Curriculum/standards , Education, Medical, Undergraduate , Geriatrics/education , Risk Assessment/methods , Adult , Aged , Clinical Competence , Education/methods , Education, Medical, Undergraduate/methods , Education, Medical, Undergraduate/standards , Educational Measurement/methods , Female , Humans , Male , Program Evaluation , Students, Medical
7.
Med Teach ; 39(1): 38-43, 2017 Jan.
Article in English | MEDLINE | ID: mdl-27636372

ABSTRACT

PURPOSE: Professionalism is a core physician competency and identifying students at risk for poor professional development early in their careers may allow for mentoring. This study identified indicators in the preclinical years associated with later professionalism concerns. METHODS: A retrospective analysis of observable indicators in the preclinical and clinical years was conducted using two classes of students (n = 226). Relationships between five potential indicators of poor professionalism in the preclinical years and observations related to professional concerns in the clinical years were analyzed. RESULTS: Fifty-three medical students were identified with at least one preclinical indicator and one professionalism concern during the clinical years. Two observable preclinical indicators were significantly correlated with unprofessional conduct during the clinical years: Three or more absences from attendance-required sessions (odds ratio 4.47; p=.006) and negative peer assessment (odds ratio 3.35; p=.049). CONCLUSIONS: We identified two significant observable preclinical indicators associated with later professionalism concerns: excessive absences and negative peer assessments. Early recognition of students at risk for future professionalism struggles would provide an opportunity for proactive professional development prior to the clinical years, when students' permanent records may be affected. Peer assessment, coupled with attention to frequent absences, may be a method to provide early recognition.


Subject(s)
Education, Medical, Undergraduate/standards , Professionalism/standards , Students, Medical , Absenteeism , Attitude of Health Personnel , Female , Humans , Male , Observation , Peer Group , Retrospective Studies , Risk Factors , Young Adult
8.
J Gerontol A Biol Sci Med Sci ; 70(6): 757-63, 2015 Jun.
Article in English | MEDLINE | ID: mdl-25326643

ABSTRACT

BACKGROUND: Cross-sectional studies suggest that low 25-hydroxyvitamin D (25[OH]D) may be a risk factor for depression; however, there are few prospective studies. We examined the association between 25(OH)D and depressive symptoms in community-dwelling persons aged 70-79 years in the Health, Aging, and Body Composition (Health ABC) Study (n = 2598). METHODS: Depressive symptoms were assessed using the Center for Epidemiologic Studies-Depression Scale (CES-D) at baseline and 2-, 3- and 4-year follow-up. Serum 25(OH)D was measured at 1-year follow-up and categorized as <20, 20-<30, and ≥30 ng/mL. Mixed models were used to examine change in CES-D scores according to 25(OH)D categories. The association between 25(OH)D categories and incident depression (CES-D short score ≥10 or antidepressant medication use) were assessed using Cox proportional hazards models. Analyses were adjusted for socio-demographic and behavioral characteristics, season, and chronic conditions. RESULTS: Thirty-three percent of participants had 25(OH)D <20ng/mL. Serum 25(OH)D was not associated with CES-D scores at baseline (p = .51); however, CES-D scores increased over time and were significantly associated with 25(OH)D at 2-year (p = .003) and 4-year follow-up (p < .001). Among 2,156 participants free of depression at the 1-year follow-up, the cumulative incidence of depression was 26.9%. Participants with 25(OH)D <20ng/mL were at greater risk of developing depression (HR [95% CI]: 1.65 [1.23-2.22]) over 4 years of follow-up compared with those with 25(OH)D ≥30ng/mL. CONCLUSION: Low 25(OH)D was independently associated with a greater increase in depressive symptom scores and incident depression in community-dwelling older adults.


Subject(s)
Depression/epidemiology , Vitamin D/analogs & derivatives , Aged , Aging , Antidepressive Agents/therapeutic use , Black People , Depression/blood , Depression/drug therapy , Female , Follow-Up Studies , Humans , Incidence , Male , Pennsylvania/epidemiology , Proportional Hazards Models , Prospective Studies , Tennessee/epidemiology , Vitamin D/blood , White People
9.
J Gen Intern Med ; 29(12): 1599-606, 2014 Dec.
Article in English | MEDLINE | ID: mdl-25127725

ABSTRACT

BACKGROUND: There are few rigorous studies to confirm or refute the commonly cited concern that control of blood pressure to lower thresholds may result in an increased risk of falls and fractures. OBJECTIVE: To compare falls and fractures in participants with type 2 diabetes in the intensive (targeting a systolic blood pressure of < 120 mmHg) and standard (targeting a systolic blood pressure of < 140 mmHg) blood pressure control arms of the Action to Control Cardiovascular Risk in Diabetes (ACCORD) randomized trial (N = 4,733). PARTICIPANTS: A subset of 3,099 participants self-reported annually on the occurrence of falls and non-spine fractures. Fractures were centrally adjudicated. MAIN MEASURES: The incidence of falls in the two treatment groups was compared using a random-effects negative binomial model, and fracture risk was compared using Cox proportional hazards models. KEY RESULTS: At enrollment in both groups, the mean age was 62 years, 44% were women, 25% were Black, and mean blood pressure was 138/75 mmHg. During follow-up, all classes of medications, particularly thiazide diuretics, were more commonly prescribed in the intensive group. After 1 year of follow-up, the mean systolic blood pressure was 133 ± 15 mmHg in the standard group and 119 ± 14 mmHg in the intensive group. The adjusted rate of falls did not differ in the intensive and standard groups (62.2/100 person-years vs. 74.1/100 person-years, RR = 0.84, 95% CI 0.54-1.29, p = 0.43). The risk of non-spine fractures was nonsignificantly lower in the intensive than in the standard blood pressure group (HR 0.79, 95% CI 0.62-1.01, p = 0.06). CONCLUSIONS: We conclude that intensive antihypertensive treatment that lowered mean systolic blood pressure to below 120 mmHg was not associated with an increased risk of falls or non-spine fractures in patients age 40 to 79 years with type 2 diabetes.


Subject(s)
Accidental Falls/statistics & numerical data , Antihypertensive Agents/adverse effects , Diabetes Mellitus, Type 2/complications , Fractures, Bone/etiology , Hypertension/drug therapy , Aged , Antihypertensive Agents/therapeutic use , Blood Pressure/drug effects , Blood Pressure/physiology , Diabetes Mellitus, Type 2/epidemiology , Drug Utilization/statistics & numerical data , Female , Fractures, Bone/epidemiology , Humans , Hypertension/epidemiology , Hypertension/physiopathology , Incidence , Male , Middle Aged , United States/epidemiology
10.
Gerontol Geriatr Educ ; 35(4): 409-20, 2014.
Article in English | MEDLINE | ID: mdl-24905192

ABSTRACT

Falls are a critical public health issue for older adults, and falls risk assessment is an expected competency for medical students. The aim of this study was to design an innovative method to teach falls risk assessment using community-based resources and limited geriatrics faculty. The authors developed a Fall Prevention Program through a partnership with Meals-on-Wheels (MOW). A 3rd-year medical student accompanies a MOW client services associate to a client's home and performs a falls risk assessment including history of falls, fear of falling, medication review, visual acuity, a Get Up and Go test, a Mini-Cog, and a home safety evaluation, reviewed in a small group session with a faculty member. During the 2010 academic year, 110 students completed the in-home falls risk assessment, rating it highly. One year later, 63 students voluntarily completed a retrospective pre/postsurvey, and the proportion of students reporting moderate to very high confidence in performing falls risk assessments increased from 30.6% to 87.3% (p < .001). Students also reported using most of the skills learned in subsequent clerkships. A single educational intervention in the MOW program effectively addressed geriatrics competencies with minimal faculty effort and could be adopted by many medical schools.


Subject(s)
Accidental Falls/prevention & control , Education, Medical, Undergraduate/methods , Food Services , Geriatrics/education , Risk Assessment/methods , Aged , Clinical Competence , Educational Measurement , Female , Humans , Male , United States
11.
J Am Geriatr Soc ; 62(6): 1155-60, 2014 Jun.
Article in English | MEDLINE | ID: mdl-24617296

ABSTRACT

To ensure that the healthcare workforce is adequately prepared to care for the growing population of older adults, minimum competencies in geriatrics have been published for medical students and primary care residents. Approaches to teaching and assessing these competencies are needed to guide medical schools, residencies, and continuing medical education programs. With sponsorship by the Education Committee and Teachers Section of the American Geriatrics Society (AGS), geriatrics educators from multiple institutions collaborated to develop a model to teach and assess a major domain of student and resident competency: Gait and Falls Risk Evaluation. The model was introduced as a workshop at annual meetings of the AGS and the American College of Physicians in 2011 and 2012. Participants included medical students, residents, geriatrics fellows, practicing physicians, and midlevel practitioners. At both national meetings, participants rated the experience highly and reported statistically significant gains in overall competence in gait and falls risk evaluation. The largest gains were observed for medical students, residents, and practicing physicians (P < .001 for all); geriatrics fellows reported a higher level of baseline competence and therefore had a lower magnitude of improvement, albeit still significant (P = .02). Finally, the majority of participants reported intent to disseminate the model in their institutions. This article describes the design, implementation, and evaluation of this collaborative national model. A number of institutions have used the model, and the goal of this article is to aid in further dissemination of this successful approach to teaching and assessing geriatrics competencies.


Subject(s)
Accidental Falls/statistics & numerical data , Clinical Competence , Gait , Geriatric Assessment , Health Personnel , Internship and Residency , Models, Educational , Students, Medical , Aged , Humans , Retrospective Studies , Risk Assessment
12.
Cancer Prev Res (Phila) ; 7(1): 161-8, 2014 Jan.
Article in English | MEDLINE | ID: mdl-24253314

ABSTRACT

Little is known about the cognitive factors associated with adherence to antiestrogen therapy. Our objective was to investigate the association between domain-specific cognitive function and adherence among women in a clinical prevention trial of oral antiestrogen therapies. We performed a secondary analysis of Co-STAR, an ancillary study of the STAR breast cancer prevention trial in which postmenopausal women at increased breast cancer risk were randomized to tamoxifen or raloxifene. Co-STAR enrolled nondemented participants ≥65 years old to compare treatment effects on cognition. The cognitive battery assessed global cognitive function (Modified Mini-Mental State Exam), and specific cognitive domains of verbal knowledge, verbal fluency, figural memory, verbal memory, attention and working memory, spatial ability, and fine motor speed. Adherence was defined by a ratio of actual time taking therapy per protocol ≥80% of expected time. Logistic regression was used to evaluate the association between cognitive test scores and adherence to therapy. The mean age of the 1,331 Co-STAR participants was 67.2 ± 4.3 years. Mean 3MS score was 95.1 (4.7) and 14% were nonadherent. In adjusted analyses, the odds of nonadherence were lower for those with better scores on verbal memory [OR (95% confidence interval): 0.75 (0.62-0.92)]. Larger relative deficits in verbal memory compared with verbal fluency were also associated with nonadherence [1.28 (1.08-1.51)]. Among nondemented older women, subtle differences in memory performance were associated with medication adherence. Differential performance across cognitive domains may help identify persons at greater risk for poor adherence.


Subject(s)
Breast Neoplasms/prevention & control , Cognition Disorders/complications , Cognition/physiology , Medication Adherence , Raloxifene Hydrochloride/therapeutic use , Tamoxifen/therapeutic use , Aged , Anticarcinogenic Agents/therapeutic use , Female , Humans , Logistic Models , Middle Aged , Neuropsychological Tests , Postmenopause , Risk
13.
J Am Geriatr Soc ; 61(7): 1182-7, 2013 Jul.
Article in English | MEDLINE | ID: mdl-23710572

ABSTRACT

The Association of American Medical Colleges (AAMC) and the John A. Hartford Foundation published geriatrics competencies for medical students in 2008 defining specific knowledge and skills that medical students should be able to demonstrate before graduation. Medical schools, often with limited geriatrics faculty resources, face challenges in teaching and assessing these competencies. As an initial step to facilitate more-efficient implementation of the competencies, a 1-week geriatrics rotation was developed for the third year using clinical, community, and self-directed learning resources. The Wake Forest University School of Medicine Acute Care for the Elderly Unit serves as home base, and each student selects a half-day outpatient or long-term care experience. Students also perform a home-based falls-risk assessment with a Meals-on-Wheels client. The objectives for the rotation include 20 of the 26 individual AAMC competencies and specific measurable tracking tasks for seven individual competencies. In the evaluation phase, 118 students completed the rotation. Feedback was positive, with an average rating of 7.1 (1 = worst, 10 = best). Students completed a 23-item pre- and post-knowledge test, and average percentage correct improved by 15% (P < .001); this improvement persisted at graduation (2 years after the pretest). On a 12-item survey of attitudes toward older adults, improvement was observed immediately after the rotation that did not persist at graduation. Ninety-seven percent of students documented completion of the competency-based tasks. This article provides details of development, structure, evaluation, and lessons learned that will be useful for other institutions considering a brief, concentrated geriatrics experience in the third year of medical school.


Subject(s)
Education, Medical, Undergraduate/methods , Geriatrics/education , Models, Educational , Aged , Analysis of Variance , Clinical Competence , Curriculum , Educational Measurement , Geriatric Assessment , Humans , North Carolina , Surveys and Questionnaires
14.
Diabetes Care ; 35(7): 1525-31, 2012 Jul.
Article in English | MEDLINE | ID: mdl-22723583

ABSTRACT

OBJECTIVE: Older adults with type 2 diabetes are at high risk of fractures and falls, but the effect of glycemic control on these outcomes is unknown. To determine the effect of intensive versus standard glycemic control, we assessed fractures and falls as outcomes in the Action to Control Cardiovascular Risk in Diabetes (ACCORD) randomized trial. RESEARCH DESIGN AND METHODS: ACCORD participants were randomized to intensive or standard glycemia strategies, with an achieved median A1C of 6.4 and 7.5%, respectively. In the ACCORD BONE ancillary study, fractures were assessed at 54 of the 77 ACCORD clinical sites that included 7,287 of the 10,251 ACCORD participants. At annual visits, 6,782 participants were asked about falls in the previous year. RESULTS: During an average follow-up of 3.8 (SD 1.3) years, 198 of 3,655 participants in the intensive glycemia and 189 of 3,632 participants in the standard glycemia group experienced at least one nonspine fracture. The average rate of first nonspine fracture was 13.9 and 13.3 per 1,000 person-years in the intensive and standard groups, respectively (hazard ratio 1.04 [95% CI 0.86-1.27]). During an average follow-up of 2.0 years, 1,122 of 3,364 intensive- and 1,133 of 3,418 standard-therapy participants reported at least one fall. The average rate of falls was 60.8 and 55.3 per 100 person-years in the intensive and standard glycemia groups, respectively (1.10 [0.84-1.43]). CONCLUSIONS: Compared with standard glycemia, intensive glycemia did not increase or decrease fracture or fall risk in ACCORD.


Subject(s)
Blood Glucose/drug effects , Fractures, Bone/prevention & control , Hypoglycemic Agents/administration & dosage , Accidental Falls/statistics & numerical data , Adult , Aged , Bone Density , Cardiovascular Diseases/prevention & control , Diabetes Mellitus, Type 2/complications , Female , Glycated Hemoglobin , Humans , Male , Middle Aged , Risk Factors
15.
J Gerontol A Biol Sci Med Sci ; 66(12): 1336-42, 2011 Dec.
Article in English | MEDLINE | ID: mdl-21768503

ABSTRACT

BACKGROUND: Stiffness of the central arteries in aging may contribute to cerebral microvascular disease independent of hypertension and other vascular risk factors. Few studies of older adults have evaluated the association of central arterial stiffness with longitudinal cognitive decline. METHODS: We evaluated associations of aortic pulse wave velocity (centimeters per second), a measure of central arterial stiffness, with cognitive function and decline in 552 participants in the Health, Aging, and Body Composition (Health ABC) study Cognitive Vitality Substudy (mean age ± SD = 73.1 ± 2.7 years, 48% men and 42% black). Aortic pulse wave velocity was assessed at baseline via Doppler-recorded carotid and femoral pulse waveforms. Global cognitive function, verbal memory, psychomotor, and perceptual speed were evaluated over 6 years. RESULTS: After adjustment for demographics, vascular risk factors, and chronic conditions, each 1 SD higher aortic pulse wave velocity (389 cm/s) was associated with poorer cognitive function: -0.11 SD for global function (SE = 0.04, p < .01), -0.09 SD for psychomotor speed (SE = 0.04, p = .03), and -0.12 SD for perceptual speed (SE = 0.04, p < .01). Higher aortic pulse wave velocity was also associated with greater decline in psychomotor speed, defined as greater than 1 SD more than the mean change (odds ratio = 1.42 [95% confidence interval = 1.06, 1.90]) but not with verbal memory or longitudinal decline in global function, verbal memory, or perceptual speed. Results were consistent with mixed models of decline in each cognitive test. CONCLUSIONS: In well-functioning older adults, central arterial stiffness may contribute to cognitive decline independent of hypertension and other vascular risk factors.


Subject(s)
Aging/physiology , Aging/psychology , Cognitive Dysfunction/physiopathology , Vascular Stiffness/physiology , Aged , Cerebral Small Vessel Diseases/complications , Cerebral Small Vessel Diseases/physiopathology , Cerebral Small Vessel Diseases/psychology , Cognitive Dysfunction/etiology , Cognitive Dysfunction/psychology , Female , Humans , Longitudinal Studies , Male , Pennsylvania , Risk Factors , Tennessee
16.
Am J Hypertens ; 24(1): 90-5, 2011 Jan.
Article in English | MEDLINE | ID: mdl-20940711

ABSTRACT

BACKGROUND: Central arterial stiffness is increasingly recognized as an important predictor of cardiovascular events and mortality in older adults; however, few studies have evaluated the association of arterial stiffness with mobility decline, a common consequence of vascular disease. METHODS: We analyzed the association of pulse wave velocity (PWV), a measure of aortic stiffness, with longitudinal gait speed over 7 years in 2,172 participants in the Health, Aging and Body Composition (ABC) Study (mean age ± s.d. 73.6 ± 2.9 years, 48% men, 39% black). RESULTS: In mixed-effects models adjusted for demographics, each s.d. (396 cm/s) higher PWV was associated with 0.015 (s.e. 0.004) m/s slower gait at baseline and throughout the study period in the full cohort (P < 0.001); this relationship was largely explained by hypertension and other vascular risk factors. Among participants with peripheral arterial disease (PAD) (n = 261; 12.7%), each s.d. higher PWV was independently associated with 0.028 (s.e. 0.010) m/s slower gait speed at baseline and throughout the study period (P < 0.01). CONCLUSIONS: These findings suggest that aortic stiffness may be especially detrimental to mobility in older adults with already compromised arterial function.


Subject(s)
Arteries/physiopathology , Gait , Peripheral Arterial Disease/physiopathology , Aged , Blood Pressure , Elasticity , Female , Humans , Male , Pulsatile Flow
18.
J Gerontol A Biol Sci Med Sci ; 65(3): 300-6, 2010 Mar.
Article in English | MEDLINE | ID: mdl-19789197

ABSTRACT

BACKGROUND: Cognitive function and physical performance are associated, but the common sequence of cognitive and physical decline remains unclear. METHODS: In the Women's Health Initiative Memory Study (WHIMS) clinical trial, we examined associations at baseline and over a 6-year follow-up period between the Modified Mini-Mental State (3MS) Examination and three physical performance measures (PPMs): gait speed (meters/second), chair stands (number of stands in 15 seconds), and grip strength (kilograms). Using mixed models, we examined the baseline 3MS as predictor of change in PPM, change in the 3MS as predictor of change in PPM, and baseline PPM as predictors of 3MS change. RESULTS: Among 1,793 women (mean age = 70.3 years, 89% white, and mean 3MS score = 95.1), PPM were weakly correlated with 3MS-gait speed: r = .06, p = .02; chair stands: r = .09, p < .001; and grip strength: r = .10, p < .001. Baseline 3MS score was associated with subsequent PPM decline after adjustment for demographics, comorbid conditions, medications, and lifestyle factors. For every SD (4.2 points) higher 3MS score, 0.04 SD (0.04 m/s) less gait speed and 0.05 SD (0.29 kg) less grip strength decline is expected over 6 years (p

Subject(s)
Aging/physiology , Cognition/physiology , Motor Activity/physiology , Women's Health , Aged , Aged, 80 and over , Double-Blind Method , Female , Follow-Up Studies , Humans , Time Factors
19.
Am Heart J ; 157(2): 334.e1-8, 2009 Feb.
Article in English | MEDLINE | ID: mdl-19185642

ABSTRACT

BACKGROUND: Beneficial effects of angiotensin-converting enzyme (ACE) inhibitors seem to be mediated by mechanisms that are partly independent of blood pressure lowering. The present study evaluates effects of an ACE inhibitor (ie, fosinopril) intervention on novel cardiovascular risk factors. METHODS: Data are from the Trial of Angiotensin Converting Enzyme Inhibition and Novel Cardiovascular Risk Factors (TRAIN) study, a double-blind, crossover, randomized, placebo-controlled trial enrolling subjects > or =55 years old with high cardiovascular disease risk profile. Biomarkers of hemostasis (ie, plasminogen activator inhibitor 1, D-dimer), inflammation (ie, C-reactive protein, interleukin-6), and endothelial function (ie, endothelin 1, vascular cell adhesion molecule 1) were measured at the baseline, at the midterm, and at end of follow-up (after 1 year) clinic visits. Paired t test analyses (after Sidak's adjustment, P < .009) were performed to compare biomarkers modifications after fosinopril/placebo interventions. RESULTS: Mean age of the sample (n = 290, women 43.4%) was 66.0 years old. No significant differences were reported for C-reactive protein, interleukin 6, plasminogen activator inhibitor 1, vascular cell adhesion molecule 1, and endothelin 1 levels in the comparisons between fosinopril and placebo interventions. D-dimer was the only biomarker showing a significant difference between fosinopril intervention (median 0.32 microg/mL, interquartile range 0.22-0.52 microg/mL) and placebo (median 0.29 microg/mL, interquartile range 0.20-0.47 microg/mL, P = .007) when analyses were restricted to participants with higher compliance to treatment and receiving the maximum ACE inhibitor dosage. CONCLUSIONS: Angiotensin-converting enzyme inhibition does not significantly modify major biomarkers of inflammation, hemostasis, and endothelial function. Further studies should confirm the possible effect of ACE inhibitors on the fibrinolysis pathway.


Subject(s)
Angiotensin-Converting Enzyme Inhibitors/pharmacology , Cardiovascular Diseases/blood , Fibrinolysis/drug effects , Fosinopril/pharmacology , Aged , Angiotensin-Converting Enzyme Inhibitors/therapeutic use , Biomarkers/blood , Cardiovascular Diseases/drug therapy , Cross-Over Studies , Double-Blind Method , Female , Fibrin Fibrinogen Degradation Products/analysis , Fosinopril/therapeutic use , Humans , Male , Middle Aged , Risk Factors
20.
J Gerontol A Biol Sci Med Sci ; 62(11): 1244-51, 2007 Nov.
Article in English | MEDLINE | ID: mdl-18000144

ABSTRACT

BACKGROUND: Recent evidence suggests that physical decline and slower gait may be associated with early signs of dementia, but more information on healthy older adults is needed. METHODS: We determined associations between cognitive function, gait speed, and self-reported measures of physical function in 3035 healthy mobile participants of the Ginkgo Evaluation of Memory Study evaluated in 2000-2001. Gait speed was measured over a 15-foot course with participants walking at both their usual and rapid pace. Self-reported difficulties with Activities of Daily Living (ADLs) and other physical function tasks were also collected. Results of the Modified Mini-Mental State Examination (3MSE) determined cognitive function. RESULTS: The average age of the cohort was 78.6 years (standard deviation [SD] 3.3), and 53.9% of participants were men. Mean gait speed was 0.95 (SD 0.23) m/s at a usual pace and 1.35 (SD 0.58) m/s at a rapid pace. More than three-fourths of participants had 3MSE scores > 90. In multiple logistic models adjusted for demographics and comorbidities, risk of low cognition (defined as 3MSE score of 80-85) was almost twice as great for participants in the slowest quartile of the rapid-paced walking task than for the fastest walkers (odds ratio: 1.96, 95% confidence interval, 1.25-3.08). Associations between cognition and usual-paced walking were borderline, and no relationships were found with self-reported measures of physical function, including ADLs. CONCLUSIONS: In very healthy older adults, performance-based measures better predict early cognitive decline than do subjective measures, and tasks requiring greater functional reserve, such as fast-paced walking, appear to be the most sensitive in assessing these relationships.


Subject(s)
Aging/physiology , Cognition/physiology , Gait/physiology , Health Status Indicators , Aged , Aged, 80 and over , Cohort Studies , Comorbidity , Cross-Sectional Studies , Dementia/prevention & control , Depression/physiopathology , Double-Blind Method , Female , Ginkgo biloba , Humans , Male , Surveys and Questionnaires
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