Potentially Modifiable Risk Factors for Dementia and Mild Cognitive Impairment: An Umbrella Review and Meta-Analysis

INTRODUCTION

The prevalence of mild and major neurocognitive disorders (NCDs), also referred to as mild cognitive impairment and dementia, is rising globally. The prevention of NCDs is a major global public health interest. We sought to synthesize the literature on potentially modifiable risk factors for NCDs.

METHODS

We conducted an umbrella review using a systematic search across multiple databases to identify relevant systematic reviews and meta-analyses. Eligible reviews examined potentially modifiable risk factors for mild or major NCDs. We used a random-effects multi-level meta-analytic approach to synthesize risk ratios for each risk factor while accounting for overlap in the reviews. We further examined risk factors for major NCD due to two common etiologies: Alzheimer's disease and vascular dementia.

RESULTS

A total of 45 reviews with 212 meta-analyses were synthesized. We identified fourteen broadly defined modifiable risk factors that were significantly associated with these disorders: alcohol consumption, body weight, depression, diabetes mellitus, diet, hypertension, less education, physical inactivity, sensory loss, sleep disturbance, smoking, social isolation, traumatic brain injury, and vitamin D deficiency. All 14 factors were associated with the risk of major NCD, and five were associated with mild NCD. We found considerably less research for vascular dementia and mild NCD.

CONCLUSION

Our review quantifies the risk associated with 14 potentially modifiable risk factors for mild and major NCDs, including several factors infrequently included in dementia action plans. Prevention strategies should consider approaches that reduce the incidence and severity of these risk factors through health promotion, identification, and early management.

Primary care quality for older adults: Practice-based quality measures derived from a RAND/UCLA appropriateness method study

We established consensus on practice-based metrics that characterize quality of care for older primary care patients and can be examined using secondary health administrative data. We conducted a two-round RAND/UCLA Appropriateness Method (RAM) study and recruited 10 Canadian clinicians and researchers with expertise relevant to the primary care of elderly patients. Informed by a literature review, the first RAM round evaluated the appropriateness and importance of candidate quality measures in an online questionnaire. Technical definitions were developed for each endorsed indicator to specify how the indicator could be operationalized using health administrative data. In a virtual synchronous meeting, the expert panel offered feedback on the technical specifications for the endorsed indicators. Panelists then completed a second (final) questionnaire to rate each indicator and corresponding technical definition on the same criteria (appropriateness and importance). We used statistical integration to combine technical expert panelists' judgements and content analysis of open-ended survey responses. Our literature search and internal screening resulted in 61 practice-based quality indicators for rating. We developed technical definitions for indicators endorsed in the first questionnaire (n = 55). Following the virtual synchronous meeting and second questionnaire, we achieved consensus on 12 practice-based quality measures across four Priority Topics in Care of the Elderly. The endorsed indicators provide a framework to characterize practice- and population-level encounters of family physicians delivering care to older patients and will offer insights into the outcomes of their care provision. This study presented a case of soliciting expert feedback to develop measurable practice-based quality indicators that can be examined using administrative data to understand quality of care within population-based data holdings. Future work will refine and operationalize the technical definitions established through this process to examine primary care provision for older adults in a particular context (Ontario, Canada).

Development of practice-based quality indicators for the primary care of older adults: a RAND/UCLA Appropriateness Method study protocol

INTRODUCTION

Older adults have high rates of primary care utilisation, and quality primary care has the potential to address their complex medical needs. Family physicians have different levels of knowledge and skills in caring for older patients, which may influence the quality of care delivery and resulting health outcomes. In this study, we aim to establish consensus on practice-based metrics that characterise quality of care for older primary care patients and can be examined using secondary, administrative data.

METHODS AND ANALYSIS

We describe a two-round RAND/UCLA Appropriateness Method (RAM) study to assess the consensus of a technical expert panel. We will recruit pan-Canadian experts who demonstrate excellence in clinical practice or scholarship related to the primary care of older adults. A literature review will generate a candidate list of practice-based quality indicators. The first round aims to evaluate the appropriateness and importance of candidate indicators through an online questionnaire. We will then develop technical definitions for each endorsed indicator using ICES data holdings. Panellists will offer feedback on the technical definitions in a virtual synchronous meeting and provide ratings on the same criteria in a second questionnaire.

ETHICS AND DISSEMINATION

Our study has been approved by the Hamilton Integrated Research Ethics Board (Project ID #15545). Findings will be disseminated via manuscripts, presentations and the lead author's thesis.

TRIAL REGISTRATION NUMBER

ISRCTN17074347.

Applicant and Match Trends to Geriatric-Focused Postgraduate Medical Training in Canada: A Descriptive Analysis

Physicians with postgraduate training in caring for older adults-geriatricians, geriatric psychiatrists, and Care of the Elderly family physicians (FM-COE)-have expertise in managing complex care needs. Deficits in the geriatric-focused physician workforce coupled with the aging demographic necessitate an increase in training and clinical positions. Descriptive analyses of data from established matching systems have not occurred to understand the preferences and outcomes of applicants to geriatric-focused postgraduate training. This study describes applicant and match trends for geriatric-focused postgraduate training in Canada. In this retrospective cohort study, data from the Canadian Resident Matching Service and FM-COE program directors were analysed to examine program quotas, applicants' preferences, and match outcomes by medical school and over time. Based on their first-choice specialty ranking, applicants to geriatric medicine and FM-COE signalled a preference to pursue these programs and tended to match successfully. The proportion of unfilled training positions has increased in recent years, and the number of applicants has not increased consistently over time. There is a disparity between applicants to geriatric-focused training and the health human resources to meet population-level needs. Garnering interest among medical trainees is essential to address access and equity gaps.

The Association Between Frailty and a Nurse-Identified Need for Comprehensive Geriatric Assessment Referral from the Emergency Department

BACKGROUND

Emergency nurses commonly conduct geriatric assessments in the emergency department (ED). However, little is known about what geriatric syndromes or clinical presentations prompt a nurse to document an identified need for comprehensive geriatric assessment (CGA).

OBJECTIVES

To examine the association between geriatric syndromes, like frailty, and a nurse-identified need for a CGA following emergency care.

METHODS

We conducted a secondary analysis of a multi-province Canadian cohort from the InterRAI Multinational Cohort Study. We collected data at ED registration from patients 75 years of age and older (n = 2,274) from eight ED sites across Canada between November 2009 and April 2012. Geriatric syndromes were assessed by trained emergency nurses using the interRAI ED Contact Assessment; and we retrospectively calculated the ED frailty index. We employed binary logistic regression to determine the adjusted associations between geriatric syndromes and a nurse-identified need for a CGA.

RESULTS

Approximately one-quarter (28%) of older adults were identified to need a CGA following emergency care. A 0.1 unit increase in the ED frailty index increased the likelihood of a nurse identify a need for CGA (RD: 6.6; 95% CI = 5.5-7.9). Most geriatric syndromes increased the probability of a nurse documenting the need for a CGA.

CONCLUSION

When assessed by emergency nurses, the identified need for CGA is strongly linked to the presence of geriatric syndromes, including frailty. We provide face validity for the continued use of emergency nurses for screening and assessing older ED patients.

How do perceptions of Covid-19 risk impact pregnancy-related health decisions? A convergent parallel mixed-methods study protocol

INTRODUCTION

Pregnant people have a higher risk of severe COVID-19 disease. They have been disproportionately impacted by COVID-19 infection control policies, which exacerbated conditions resulting in intimate partner violence, healthcare access, and mental health distress. This project examines the impact of accumulated individual health decisions and describes how perinatal care and health outcomes changed during the COVID-19 pandemic.

OBJECTIVES

Quantitative strand: Describe differences between 2019, 2021, and 2022 birth groups related to maternal vaccination, perinatal care, and mental health care. Examine the differential impacts on racialized and low-income pregnant people.Qualitative strand: Understand how pregnant people's perceptions of COVID-19 risk influenced their decision-making about vaccination, perinatal care, social support, and mental health.

METHODS AND ANALYSIS

This is a Canadian convergent parallel mixed-methods study. The quantitative strand uses a retrospective cohort design to assess birth group differences in rates of Tdap and COVID-19 vaccination, gestational diabetes screening, length of post-partum hospital stay, and onset of depression, anxiety, and adjustment disorder, using administrative data from ICES, formerly the Institute for Clinical Evaluative Sciences (Ontario) and PopulationData BC (PopData) (British Columbia). Differences by socioeconomic and ethnocultural status will also be examined. The qualitative strand employs qualitative description to interview people who gave birth between May 2020- December 2021 about their COVID-19 risk perception and health decision-making process. Data integration will occur during design and interpretation.

ETHICS AND DISSEMINATION

This study received ethical approval from McMaster University and the University of British Columbia. Findings will be disseminated via manuscripts, presentations, and patient-facing infographics.

TRIAL REGISTRATION

Registration: Clinicaltrials.gov registration number: NCT05663762.

Did the Long-Term Care Physician Workforce Change During the Pandemic? Describing MRP Trends in Ontario, Canada

OBJECTIVES

To examine the practice patterns and trends of long-term care (LTC) physicians between 2019 and 2021 in Ontario, Canada.

DESIGN

Population-level descriptive time trend study.

SETTING AND PARTICIPANTS

Most responsible physicians (MRPs) of LTC residents of publicly funded LTC homes in Ontario, Canada, from September 2019 to December 2021.

METHODS

We examined the number of MRPs in publicly regulated Ontario LTC homes before and during the COVID-19 pandemic using population-level administrative databases. Characteristics of MRPs and practice patterns were generated at baseline and across distinct time periods of the pandemic in descriptive tables. We created a Sankey diagram to visualize MRP practice changes over time.

RESULTS

More than one-quarter of pre-pandemic MRPs were no longer MRPs by the end of 2021, although most continued to practice in non-LTC settings. There was a decrease from 1444 to 1266 MRPs over time. Other characteristics of MRPs remained stable over the pandemic time periods. At baseline, LTC physicians were MRP for an average of 57.3 residents. By the end of 2021, this caseload decreased to 53.3 residents per MRP. MRPs increasingly billed monthly management compensation fees over the fee-for-service model across the pandemic time periods. The number of MRPs working in an LTC home shifted to fewer MRPs per home.

CONCLUSIONS AND IMPLICATIONS

MRP demographic characteristics did not change over the course of the pandemic. The observed shifts in practice patterns showed a reduction in the overall LTC MRP workforce, who delivered care to fewer residents on average in LTC homes with fewer colleagues to rely on. Future work can study how changes to LTC MRPs' practice patterns impact physician coverage, access and continuity of care, and health services and quality outcomes among residents.

Physician Practice in Ontario Nursing Homes: Defining Physician Commitment

OBJECTIVES

To characterize the practice profile of nursing home (NH) physicians in Ontario, Canada.

DESIGN

Population-based cross-sectional study.

SETTING AND PARTICIPANTS

A total of 1527 most responsible physicians (MRPs) across 626 NHs in Ontario, Canada, for the calendar year, 2017.

METHODS

We examined physician services within all publicly regulated and funded NH facilities. Descriptive summaries were generated to characterize MRPs and their practice patterns by the physician's primary practice location, the NH facility size, and the proportion of physician billings that occurred within NHs. Community sizes were classified into quintiles based on population size and assigned as urban or rural. The number of ministry-designated NH beds were assessed by quintiles to examine physician services by facility size. We also assessed the proportion of physician billings within NHs by quintiles.

RESULTS

MRPs tended to be older, male, and practice family medicine. The majority of MRPs practiced in communities with populations exceeding 100,000 residents, although physicians with greater NH billings tended to practice in rural locations. The mean number of NH residents that a physician was MRP for was positively associated with the community size. Physicians provided care for more NH residents than they were assigned most responsible. Fifty-one percent of physicians were MRP for 90% of all NH residents.

CONCLUSIONS AND IMPLICATIONS

Our work provides an exemplar for characterizing physician commitment in NHs, using 2 approaches, according to the NH specialist model. We demonstrated the medical practice characteristics, locations, and billing patterns of physicians within Ontario NHs. Future work can investigate the association between physician commitment and the quality of care provided to NH residents. A greater understanding of physician commitment may lead to the development of quality metrics based on physician practice patterns.

The impact of care of the elderly certificates of added competence on family physician practice: results from a pan-Canadian multiple case study

Background

Family physicians serve an important role in the care of older adults, and have variable levels of training and comfort navigating this complex patient population. The Care of the Elderly (COE) Certificate of Added Competence offered by The College of Family Physicians of Canada recognizes family physicians with advanced expertise in older adult healthcare. We explored how COE training and certification impacts primary care delivery to older patients, including factors that impact group practice.

Methods

We conducted a secondary analysis of multiple case study data to explore similarities and differences within and across cases. We defined cases as a practice or collective of family physicians working within a defined group of patients in an interconnected community. We analyzed semi-structured interview transcripts (n = 48) from six practice groups of family physicians across Canada using conventional (unconstrained, inductive) content analysis.

Results

We identified similarities and differences in how COE family physicians function within their group practice and the broader healthcare system. In some cases, COE certifications increased patients’ access to geriatric resources by reducing travel and wait times. Some physicians observed minimal changes in their role or group practice after earning the COE designation, including continuing to largely function as a generalist. While family physicians tended to highly value their COE CAC, this designation was differentially recognized by others.

Conclusions

Our findings highlight the impacts and limitations of COE training and certification, including an opportunity for COE family physicians to fill knowledge and practice gaps. As the number of older adults in Canada continues to grow and increasingly rely on primary care services, COE family physicians are uniquely positioned to strengthen the health system’s capacity to deliver specialized geriatric care.

Clinical factors associated with recent medical care visits in nursing homes: a multi-site cross-sectional study

Objectives

We examined which resident-level clinical factors influence the provision of a recent medical care visit in nursing homes (NHs).

Design

Multi-site cross-sectional.

Setting and participants

We extracted data on 3,556 NH residents from 18 NH facilities in Ontario, Canada, who received at minimum, an admission and first-quarterly assessment with the Resident Assessment Instrument Minimum Data Set (MDS) 2.0 between November 1, 2009, and October 31, 2017.

Methods

We conducted a secondary analysis of routinely collected MDS 2.0 data. The provision of a recent medical care visit by a physician (or authorized clinician) was assessed in the 14-day period preceding a resident’s first-quarterly MDS 2.0 assessment. We utilized best-subset multivariable logistic regression to model the adjusted associations between resident-level clinical factors and a recent medical care visit.

Results

Two thousand eight hundred fifty nine (80.4%) NH residents had one or more medical care visits prior to their first-quarterly MDS 2.0 assessment. Six clinically relevant factors were identified to be associated with recent medical care visits in the final model: exhibiting wandering behaviours (OR = 1.34, 95% CI 1.09 – 1.63), presence of a pressure ulcer (OR = 1.37, 95% CI 1.05 – 1.78), a urinary tract infection (UTI) (OR = 1.52, 95% CI 1.06 – 2.18), end-stage disease (OR = 9.70, 95% CI 1.32 – 71.02), new medication use (OR = 1.31, 95% CI 1.09 – 1.57), and analgesic use (OR = 1.24, 95% CI 1.03 – 1.49).

Conclusions and implications

Our findings suggest that resident-level clinical factors drive the provision of medical care visits following NH admission. Clinical factors associated with medical care visits align with the minimum competencies expected of physicians in NH practice, including managing safety risks, infections, medications, and death. Ensuring that NH physicians have opportunities to acquire and strengthen these competencies may be transformative to meet the ongoing needs of NH residents.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12877-022-03011-9.

Comparing the scopes of practice of geriatric-focused physicians in Canada: a qualitative study of core competencies

BACKGROUND

Given long-standing deficits of medical expertise to care for a growing population of older adults, it is important to understand the geriatric medical workforce. We aimed to describe and compare the scopes of practice of the 3 geriatric-focused physician providers in Canada (i.e., family physicians with certification in Care of the Elderly [FM-COE], geriatricians and geriatric psychiatrists).

METHODS

We conducted a qualitative study to compare competencies across geriatric-focused physician provider types in Canada, using a directed content analysis approach. We identified and obtained relevant publicly available documents that described the competencies required for certification by searching the websites of The College of Family Physicians of Canada and the Royal College of Physicians and Surgeons of Canada between June 2 and July 31, 2020. An inductive content analysis was used to compare content within each CanMEDS Role according to the CanMEDS Framework.

RESULTS

We identified and obtained 4 relevant publicly available documents describing the competencies required for geriatric-focused certification for the 3 geriatric-focused physician provider types. We found substantial overlaps in the expected medical expertise of FM-COE and geriatricians. The few substantive differences across providers may result from different priorities about which competencies were made explicit for providers. The focused nature of mental health care is apparent in several competencies unique to geriatric psychiatry.

INTERPRETATION

This work highlights substantial overlaps in the scopes of practice for FM-COE and geriatricians. Our findings may encourage efforts to develop more robust delineations between the scopes of practice of these related professionals to facilitate inter-specialty collaboration to lead to more equitable and accessible medical care for older adults.

Examining the association between paramedic transport to the emergency department and hospital admission: a population-based cohort study

Background

Increasing hospitalization rates present unique challenges to manage limited inpatient bed capacity and services. Transport by paramedics to the emergency department (ED) may influence hospital admission decisions independent of patient need/acuity, though this relationship has not been established. We examined whether mode of transportation to the ED was independently associated with hospital admission.

Methods

We conducted a retrospective cohort study using the National Ambulatory Care Reporting System (NACRS) from April 1, 2015 to March 31, 2020 in Ontario, Canada. We included all adult patients (≥18 years) who received a triage score in the ED and presented via paramedic transport or self-referral (walk-in). Multivariable binary logistic regression was used to determine the association of mode of transportation between hospital admission, after adjusting for important patient and visit characteristics.

Results

During the study period, 21,764,640 ED visits were eligible for study inclusion. Approximately one-fifth (18.5%) of all ED visits were transported by paramedics. All-cause hospital admission incidence was greater when transported by paramedics (35.0% vs. 7.5%) and with each decreasing Canadian Triage and Acuity Scale level. Paramedic transport was independently associated with hospital admission (OR = 3.76; 95%CI = 3.74–3.77), in addition to higher medical acuity, older age, male sex, greater than two comorbidities, treatment in an urban setting and discharge diagnoses specific to the circulatory or digestive systems.

Conclusions

Transport by paramedics to an ED was independently associated with hospital admission as the disposition outcome, when compared against self-referred visits. Our findings highlight patient and visit characteristics associated with hospital admission, and can be used to inform proactive healthcare strategizing for in-patient bed management.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12873-021-00507-2.

Prognostic association of frailty with post-arrest outcomes following cardiac arrest: A systematic review and meta-analysis

OBJECTIVE

To synthesize the current evidence examining the association between frailty and a series of post-arrest outcomes following the provision of cardiopulmonary resuscitation (CPR).

DATA SOURCES

We searched MEDLINE, PubMed (exclusive of MEDLINE), EMBASE, CINAHL, and Web of Science from inception to August 2020 for observational studies that examined an association between frailty and post-arrest health outcomes, including in-hospital and post-discharge mortality. We conducted citation tracking for all eligible studies.

STUDY SELECTION

Our search yielded 20,480 citations after removing duplicate records. We screened titles, abstracts and full-texts independently and in duplicate.

DATA EXTRACTION

The prognosis research strategy group (PROGRESS) and the critical appraisal and data extraction for systematic review of prediction modelling studies (CHARMS) guidelines were followed. Study and outcome-specific risk of bias were assessed using the Quality in Prognosis Studies (QUIPS) instrument. We rated the certainty of evidence using the Grading of Recommendations, Assessment, Development and Evaluations (GRADE) recommendations for prognostic factor research.

DATA SYNTHESIS

Four studies were included in this review and three were eligible for statistical pooling. Our sample comprised 1,134 persons who experienced in-hospital cardiac arrest (IHCA). The mean age of the sample was 71 years. The study results were pooled according to the specific frailty instrument. Three studies used the Clinical Frailty Scale (CFS) and adjusted age (our minimum confounder); the presence of frailty was associated with an approximate three-fold increase in the odds of dying in-hospital after IHCA (aOR = 2.93; 95% CI = 2.43-3.53, high certainty). Frailty was also associated with decreased incidence of ROSC (return of spontaneous circulation) and discharge home following IHCA. One study with high risk of bias used the Hospital Frailty Risk Score and reported a 43% decrease in the odds of discharge home for patients with frailty following IHCA.

CONCLUSION

High certainty evidence was found for an association between frailty and in-hospital mortality following IHCA. Frailty is a robust prognostic factor that contributes valuable information and can inform shared-decision making and policies surrounding advance care directives. Registration: PROSPERO Registration # CRD42020212922.

Fostering intergenerational education: An experiential learning program for medical students and older adults

Educational initiatives providing intergenerational, experiential learning opportunities can engage students of various education levels and disciplines. All persons can benefit from initiatives with older adults because our aging population suggests more of these interactions will occur across sectors. While students pursuing an education in health or medical fields are primarily identified as benefiting from intergenerational education to gain skills and knowledge to effectively care for the elderly, these teachings are invaluable regardless of one’s age, education, or career background. The program delivery and evaluation criteria can be adapted to assess competencies essential to different education or career paths.