Considering inequities in national dementia strategies: breadth, depth, and scope.

BACKGROUND: Considering that dementia is an international public health priority, several countries have developed national dementia strategies outlining initiatives to address challenges posed by the disease. These strategies aim to improve the care, support, and resources available to meet the needs of persons living with dementia and their care partners and communities. Despite the known impact of social determinants of health on dementia risk, care, and outcomes, it is unclear whether dementia strategies adequately address related inequities. This study aimed to describe whether and how national dementia strategies considered inequities associated with social determinants of health. METHODS: We conducted an environmental scan of the national dementia strategies of countries that are part of the Organisation for Economic Cooperation and Development (OECD). Included strategies had to be accessible in English or French. Sub-national or provincial plans were excluded. We synthesised information on strategies' considerations of inequity through a thematic analysis. RESULTS: Of the 15 dementia strategies that met inclusion criteria, 13 mentioned at least one inequity (M = 2.4, median = 2, range:0-7) related to Race/Ethnicity; Religion; Age; Disability; Sexual Orientation/Gender Identity; Social Class; or Rurality. Age and disability were mentioned most frequently, and religion most infrequently. Eleven strategies included general inequity-focused objectives, while only 5 had specific inequity-focused objectives in the form of tangible percentage changes, deadlines, or allocated budgets for achieving equity-related goals outlined in their strategies. CONCLUSIONS: Understanding if and how countries consider inequities in their dementia strategies enables the development of future strategies that adequately target inequities of concern. While most of the strategies mentioned inequities, few included tangible objectives to reduce them. Countries must not only consider inequities at a surface-level; rather, they must put forth actionable objectives that intend to lessen the impact of inequities in the care of all persons living with dementia.

The impact of including a medication review in an integrated care pathway: A pilot study.

AIM: The objective of the present study was to measure the impact of the intervention of combining a medication review with an integrated care approach on potentially inappropriate medications (PIMs) and hospital readmissions in frail older adults. METHODS: A cohort of hospitalized older adults enrolled in the French PAERPA integrated care pathway (the exposed cohort) was matched retrospectively with hospitalized older adults not enrolled in the pathway (unexposed cohort) between January 1st, 2015, and December 31st, 2018. The study was an analysis of French health administrative database. The inclusion criteria for exposed patients were admission to an acute care department in a general hospital, age 75 years or over, at least three comorbidities or the prescription of diuretics or oral anticoagulants, discharge alive and performance of a medication review. RESULTS: For the study population (n = 582), the mean ± standard deviation age was 82.9 ± 4.9 years, and 380 (65.3%) were women. Depending on the definition used, the overall median number of PIMs ranged from 2 [0;3] on admission to 3 [0;3] at discharge. The intervention was not associated with a significant difference in the mean number of PIMs. Patients in the exposed cohort were half as likely to be readmitted to hospital within 30 days of discharge relative to patients in the unexposed cohort. CONCLUSION: Our results show that a medication review was not associated with a decrease in the mean number of PIMs. However, an integrated care intervention including the medication review was associated with a reduction in the number of hospital readmissions at 30 days.

Interprofessional Primary Care and Acute Care Hospital Use by People With Dementia: A Population-Based Study.

PURPOSE: Interprofessional primary care has the potential to optimize hospital use for acute care among people with dementia. We compared 1-year emergency department (ED) visits and hospitalizations among people with dementia enrolled in a practice having an interprofessional primary care team with those enrolled in a physician-only group practice. METHODS: A population-based, repeated cohort study design was used to extract yearly cohorts of 95,323 community-dwelling people in Ontario, Canada, newly identified in administrative data with dementia between April 1, 2005 and March 31, 2015. Patient enrollment in an interprofessional practice or a physician-only practice was determined at the time of dementia diagnosis. We used propensity score-based inverse probability weighting to compare study groups on overall and nonurgent ED visits as well as on overall and potentially avoidable hospitalizations in the 1 year following dementia diagnosis. RESULTS: People with dementia enrolled in a practice having an interprofessional primary care team were more likely to have ED visits (relative risk = 1.03; 95% CI, 1.01-1.05) and nonurgent ED visits (relative risk = 1.22; 95% CI, 1.18-1.28) compared with those enrolled in a physician-only primary care practice. There was no evidence of an association between interprofessional primary care and hospitalization outcomes. CONCLUSIONS: Interprofessional primary care was associated with increased ED use but not hospitalizations among people newly identified as having dementia. Although interprofessional primary care may be well suited to manage the growing and complex dementia population, a better understanding of the optimal characteristics of team-based care and the reasons leading to acute care hospital use by people with dementia is needed.

COVID-19 - an opportunity to improve access to primary care through organizational innovations? A qualitative multiple case study in Quebec and Nova Scotia (Canada).

BACKGROUND: COVID-19 catalyzed a rapid and substantial reorganization of primary care, accelerating the spread of existing strategies and fostering a proliferation of innovations. Access to primary care is an essential component of a healthcare system, particularly during a pandemic. We describe organizational innovations aiming to improve access to primary care and related contextual changes during the first 18 months of the COVID-19 pandemic in two Canadian provinces, Quebec and Nova Scotia. METHODS: We conducted a multiple case study based on 63 semi-structured interviews (n = 33 in Quebec, n = 30 in Nova Scotia) conducted between October 2020 and May 2021 and 71 documents from both jurisdictions. We recruited a diverse range of provincial and regional stakeholders (e.g., policy-makers, decision-makers, family physicians, nurses) involved in reorganizing primary care during the COVID-19 pandemic using purposeful sampling (e.g., based on role, region). Interviews were transcribed verbatim and thematic analysis was conducted in NVivo12. Emerging results were discussed by team members to identify salient themes and organized into logic models. RESULTS: We identified and analyzed six organizational innovations. Four of these - centralized public online booking systems, centralized access centers for unattached patients, interim primary care clinics for unattached patients, and a community connector to health and social services for older adults - pre-dated COVID-19 but were accelerated by the pandemic context. The remaining two innovations were created to specifically address pandemic-related needs: COVID-19 hotlines and COVID-dedicated primary healthcare clinics. Innovation spread and proliferation was influenced by several factors, such as a strengthened sense of community amongst providers, decreased patient demand at the beginning of the first wave, renewed policy and provider interest in population-wide access (versus attachment of patients only), suspended performance targets (e.g., continuity ≥80%) in Quebec, modality of care delivery, modified fee codes, and greater regional flexibility to implement tailored innovations. CONCLUSION: COVID-19 accelerated the uptake and creation of organizational innovations to potentially improve access to primary healthcare, removing, at least temporarily, certain longstanding barriers. Many stakeholders believed this reorganization would have positive impacts on access to primary care after the pandemic. Further studies should analyze the effectiveness and sustainability of innovations adapted, developed, and implemented during the COVID-19 pandemic.

Quality indicator framework for primary care of patients with dementia.

OBJECTIVE: To develop a framework of population-based primary care quality indicators adapted to patients with dementia and to identify a subset of stakeholder-driven priority indicators. DESIGN: Framework development was carried out through the selection of an initial framework based on a rapid review and identification of relevant indicators and enrichment based on existing dementia indicators and guidelines. Prioritization of indicators was carried out through a stakeholder survey. SETTING: Ontario, Quebec, New Brunswick, and Saskatchewan. PARTICIPANTS: Stakeholders in community dementia care (N=109) including clinicians, patients, caregivers, decision makers, and managers. MAIN OUTCOME MEASURES: Primary care quality indicators. RESULTS: The framework comprised 34 indicators across 8 domains of quality (access, integration, effective care, efficient care, equity, safety, population health, and patient-centred care). Access to a regular primary care provider, continuity of care, early-stage diagnosis, and access to home care were consistently rated as priorities. Equitable care was a specific priority among patients and caregivers; clinicians reported avoidable hospitalizations as among their priorities. CONCLUSION: A framework of indicators was established for persons with dementia that adds an important dimension to existing primary care and dementia quality indicators by providing primary care and population-based perspectives. This framework could set a foundation for the ongoing monitoring of primary care practices and policies for persons with dementia at a population level.

Implementing a Telehealth Support Tool for Community-Dwelling Older Adults During the COVID-19 Pandemic: A Qualitative Investigation of Provider Experiences.

During the COVID-19 pandemic, policymakers had to quickly offer telehealth services to address older adults' needs. This study aimed to understand the experiences of providers who implemented a telephone-based telehealth tool named Socio-Geriatric Evaluation (ESOGER), which assessed health and social isolation risks in community-dwelling older adults in Quebec (Canada). This qualitative study used 20 semi-structured online/phone interviews with health and social service providers coming from publicly-funded healthcare facilities and community organizations. We included adopters and non-adopters of the telehealth tool. Interviews were audio-recorded and transcribed verbatim. We used reflexive thematic analysis to interpret the data. Three dimensions of providers' practice influenced the tool's implementation: service organization, working conditions, and interactions with older adults. Participants reported that the tool fostered continuity of care, provided guidance for their pandemic-related new tasks, and helped identify and support socially isolated older adults. Challenges to implementation included limited appropriateness of the telehealth tool for diverse services, feasibility barriers to adopting a new tool amid the health crisis, and acceptability challenges with some older adults. Despite relevance of the telehealth tool for providers, organizational, professional, and interactional barriers could hinder implementation success. Participatory approaches to telehealth may be promising avenues for future policies in this field.

Le Plan Alzheimer québécois, un plan basé sur les soins primaires.

Many countries have answered the call from the World Health Organization, and developed or implemented Alzheimer Plans. Some plans anchored the majority of the care for persons living with dementia in specialized care settings, while others anchored it in primary care. In this article we present the Quebec Alzheimer Plan, which is being implemented in Family Medicine Groups, primary care interdisciplinary clinics, across the Canadian province. The Quebec Alzheimer Plan aims to enable primary healthcare teams of physicians, nurses and/or social workers to provide access to personalized, coordinated assessment and treatment services for people living with dementia and their caregivers. The Quebec Alzheimer Plan enables and empowers primary care clinicians to detect, diagnose, treat and follow-up the vast majority of patients/caregivers. A major strength of the Quebec Alzheimer Plan strategy is the embedded evaluation to inform implementation and its flexibility to allow local adaptations. We are discussing that it is feasible and advantageous to anchor dementia care in an interprofessional primary care setting.

Is self-rated health an independent prognostic factor of six-week mortality in older patients hospitalized for an acute condition?

PURPOSE: To determine whether self-rated health is a prognostic factor of six-week mortality, independently of other known objective prognostic factors. METHODS: The SAFMA study was a prospective cohort, which recruited patients from the University Hospital of Martinique Acute Care for Elders unit (French West Indies) from January to June 2012. Patients aged 75 or older and hospitalized for an acute condition were eligible. The outcome was time to death within the six-week follow-up. The main explanatory variable was self-rated health. Sociodemographic and clinical characteristics were considered as covariates. Cox's proportional hazards model was used. RESULTS: The mean age of the 223 patients included was 85.1 ± 5.5 years. Six-week mortality rate was 14.8 %; none were lost to follow-up. In total, 123 claimed "very good to good" health, and 100 "medium to very poor" health. Self-rated health was the only independent prognostic factor associated with 6-week mortality (hazard ratio 2.61; 95 % confidence interval 1.18-5.77; p = .02), when adjusting for known prognostic factors such as age, dimensions of the comprehensive geriatric assessment and comorbidity burden. CONCLUSION: The association between self-rated health and short-term mortality could have implications for clinical practice, particularly in helping in the estimation of prognosis in acute care setting.

Towards a Community-Based Dementia Care Strategy: A Perspective from Quebec.

Morton-Chang et al. highlighted in their article the key strategic pillars of a community-based dementia care strategy: put "people first," support informal caregiving and enable "ground up" innovation and change. In our commentary, we draw upon our experience as authors of the Quebec Alzheimer Plan and evaluators of its implementation by the Quebec Ministry of Health and Social Services (MSSS). To us, a sustainable dementia care strategy entails a patient-centred approach, grounded in primary care, caring for persons with dementia at every stage of the disease. Implementation of such a strategy requires an ongoing effort to allow innovation adoption by clinicians and organizations.

Sex Differences in Healthcare Utilization in Persons Living with Dementia Between 2000 and 2017: A Population-Based Study in Quebec, Canada.

Objectives: Describe sex differences in healthcare utilization and mortality in persons with new dementia in Quebec, Canada. Methods: We conducted a repeated cohort study from 2000 to 2017 using health administrative databases. Community-dwelling persons aged 65+ with a new diagnosis of dementia were included. We measured 23 indicators of healthcare use across five care settings: ambulatory care, pharmacological care, acute hospital care, long-term care, and mortality. Clinically meaningful sex differences in age-standardized rates were determined graphically through expert consultations. Results: Women with dementia had higher rates of ambulatory care and pharmacological care, while men with dementia had higher acute hospital care, admission to long-term care, and mortality. There was no meaningful difference in visits to cognition specialists, antipsychotic prescriptions, and hospital death. Discussion: Men and women with dementia demonstrate differences in healthcare utilization and mortality. Addressing these differences will inform decision-makers, care providers and researchers and guide more equitable policy and interventions in dementia care.

Rural-Urban Differences in Healthcare Use in Persons With Dementia Between 2000 and 2019: A Quebec Population-Based Study.

Background: Rural persons with dementia face medical services gaps. This study compares the health service utilization of rural and urban community-dwelling individuals with incident dementia. Methods: This study used a repeated annual cross-sectional cohort design spanning a period from 2000 to 2019 analyzing age-adjusted rates for 20 indicators of service use and mortality one year after diagnosis in Quebec administrative databases. Results: Of 237,259 persons, 20.1% were rural. Most rural persons had more emergency department visits and hospitalizations, shorter stays, less alternate level of care and fewer family physicians' and cognition specialists' visits. All groups had similar long-term care and mortality rates. Conclusion: Policy implications of these disparities are discussed.

Profiles of healthcare use of persons living with dementia: A population-based cohort study.

AIM: Persons living with dementia are a heterogeneous population with complex needs whose healthcare use varies widely. This study aimed to identify the healthcare use profiles in a cohort of persons with incident dementia, and to describe their characteristics. METHODS: This is a retrospective cohort study of health administrative data in Quebec (Canada). The study population included persons who: (i) had an incident dementia diagnosis between 1 April 2015 and 31 March 2016; (ii) were aged ≥65 years and living in the community at the time of diagnosis. We carried out a latent class analysis to identify subgroups of healthcare users. The final number of groups was chosen based on clinical interpretation and statistical indicators. RESULTS: The study cohort consisted of 15 584 individuals with incident dementia. Four profiles of healthcare users were identified: (i) Low Users (36.4%), composed of individuals with minimal healthcare use and fewer comorbidities; (ii) Ambulatory Care-Centric Users (27.5%), mainly composed of men with the highest probability of visiting cognition specialists; (iii) High Acute Hospital Users (23.6%), comprised of individuals mainly diagnosed during hospitalization, with higher comorbidities and mortality rate; and (iv) Long-Term Care Destined Users (12.5%), who showed the highest proportion of antipsychotics prescriptions and delayed hospitalization discharge. CONCLUSIONS: We identified four distinct subgroups of healthcare users within a population of persons living with dementia, providing a valuable context for the development of interventions tailored to specific needs within this diverse population. Geriatr Gerontol Int 2024; 24: 789-796.

Prioritizing Protecting Oneself Over the COVID-19 Virus Versus Other Health and Social Needs Among Older Adults Living Alone: A Qualitative Study.

BACKGROUND AND OBJECTIVES: People aged 65 and older, deemed most "vulnerable" by public health, were targeted by the coronavirus disease 2019 protection measures, which sought to minimize physical contact and social activities. Older adults living alone were particularly affected by these measures. However, such measures meant to protect the older population may not have necessarily reflected older adults' individual prioritization choices. This study therefore aimed to understand how protecting oneself over the virus was considered in the prioritization of other health and social needs of older adults living alone during the pandemic. RESEARCH DESIGN AND METHODS: This study adopted a qualitative design. A total of 17 semistructured interviews were conducted between May 2021 and June 2022 with older adults living alone. All interviews were audio-recorded and transcribed verbatim. A reflexive thematic analysis as defined by Braun and Clarke was performed. RESULTS: Our analysis showed 2 forms of prioritization across 2 themes. This first theme focused on participants who reported prioritizing protecting themselves over the virus by limiting in-person contact and activities. The second theme showed that although several participants reported that protecting themselves over the virus was important to them, the prioritization of this need was not shared by all and, in some cases, evolved over the course of the pandemic. DISCUSSION AND IMPLICATIONS: Our study demonstrated heterogeneity in the prioritization of older adults needs. Future public health recommendations should consider these variations in the needs and priorities of older adults when determining public health measures.

Profiles of socially isolated community-dwelling older adults during the COVID-19 pandemic: A latent class analysis.

OBJECTIVE: To identify different profiles of socially isolated older adults during the first wave of COVID-19 in Quebec, Canada. STUDY DESIGN: Cross-sectional data were obtained through a telehealth socio-geriatric risk assessment tool, ESOGER, administered to adults aged 70 years or more between April and July 2020 in Montreal, Canada. MEASURES: Those living alone with no social contacts in the last few days were considered socially isolated. Latent class analysis was performed to identify profiles of socially isolated older adults based on: age, sex, polypharmacy, use of home care, use of a walking aid, recall of current year/month, anxiety level (scale 0-10), and need for follow-up from a healthcare provider. RESULTS: Three-hundred and eighty (380) older adults identified as socially isolated were analyzed, of whom 75.5 % were female and 56.6 % were over 85. Three classes were identified: Class 1 ("physically frail older females") had the highest proportion of polypharmacy, walking aid, and home care use. Class 2 ("anxious, relatively younger males") were predominantly males who used the least home care but had the highest anxiety levels. Class 3 ("seemingly well older females") had the highest proportion of females, lowest proportion of polypharmacy, lowest anxiety level, and none used a walking aid. Recall of current year/month was similar across the three classes. CONCLUSIONS: This study found heterogeneity among socially isolated older adults during the first wave of the COVID-19 pandemic with varying levels of physical and mental health. Our findings may contribute to the development of targeted interventions to support this vulnerable population during and after the pandemic.

Description of organizational and clinician characteristics of primary dementia care in Canada: a multi-method study.

BACKGROUND: Organizational and clinician characteristics are important considerations for the implementation of evidence-based recommendations into primary care practice. The introduction of Canadian dementia practice guidelines and Alzheimer strategies offers a unique context to study which of the organizational and clinician characteristics align with good quality care in primary care practices. METHODS: To evaluate the quality of dementia care, we carried out a retrospective chart review in randomly selected patients with a diagnosis of dementia and who had a visit during a 9-month period in 33 primary care practices. We collected data on indicators that were based on existing Canadian evidence-based recommendations to measure a quality of dementia care score. In addition, four questionnaires were administered: two questionnaires to evaluate the organizational characteristics of the practices (dementia-specific and general organization) and two to evaluate the clinician characteristics (one for family physicians and one for nurses). Primary care practices were stratified into tertiles based on their average quality of dementia care score (low, moderate, high). The differences between the groups organizational and clinician questionnaires scores were analyzed descriptively and visually. RESULTS: The mean overall scores for each questionnaire were higher in the high quality of dementia care group. When looking at the breakdown of the overall score into each characteristic, the high-quality group had a higher average score for the dementia-specific organizational characteristics of "access to and coordination with home and community services", "financial support", "training", "coordination and continuity within the practice", and "caregiver support and involvement". The characteristic "Leadership" showed a higher average score for the moderate and high-quality groups than the low-quality group. In both clinician questionnaires, the high group scored better in "attitudes towards the Alzheimer's plan" than the other two groups. CONCLUSIONS: These results suggest that investing in organizational characteristics specifically aimed at dementia care is a promising avenue to improve quality of dementia care in primary care. These results may be useful to enhance the implementation of evidence-based practices and improve the quality of dementia care.

The association between the level of institutional support for dementia care in primary care practices and the quality of dementia primary care: A retrospective chart review.

INTRODUCTION: Institutional support, encompassing financial and training support, as well as interdisciplinary teams, may be important for the quality of dementia primary care for persons living with dementia. The aim of this study was to measure the association between the level of institutional support provided to primary care practices and the quality of dementia care. METHODS: This was a cross-sectional chart review in 33 Canadian primary care practices to measure the quality of dementia primary care using a quality of follow-up score. The score was based on the assessment of 10 indicators. Practices were chosen using a purposeful sampling method with varying levels of institutional support for dementia primary care (e.g., financial support, training, interdisciplinary team). A linear mixed-effect model was used to measure the association between the level of institutional support and the quality of dementia care. RESULTS: There was a significant association between the level of institutional support and the quality of dementia care (mean difference = 23.5, 95% confidence interval: 16.4, 30.6). DISCUSSION: Providing more institutional support for primary care practices could be a promising avenue to improve the care of persons living with dementia.

Geriatric Syndromes in Older Adults Hospitalized with COVID-19 in Montreal, Canada.

Background: Older adults are more vulnerable to severe infection and mortality due to COVID-19. They have atypical presentations of the disease without respiratory symptoms, making early diagnosis clinically challenging. We aimed to compare the baseline characteristics, presentation, and disease course of older (≥70 yrs & ≥90 yrs) and younger (<70 yrs) patients hospitalized with COVID-19. Methods: Retrospective review of 429 consecutive patients hospitalized at two tertiary care hospitals in Montreal, Canada, with PCR-confirmed COVID-19. Baseline characteristics, presentation, in-hospital complications, and outcomes were recorded. Desegregation by age was performed to compare older versus younger individuals. Additional subgroup analyses were performed amongst patients ≥70 stratifying by sex, living situation, and those presenting with geriatric syndromes compared to those without. Results: Patients ≥70 (n=260) presented less frequently with respiratory symptoms compared to patients <70 (n=169) (52% vs. 32%). 11% of patients ≥70 and 24% of patients ≥90 presented with a geriatric syndrome as their sole symptom compared to 3% of those <70. Older adults were more likely to develop disease complications (including delirium, acute kidney injury, and hypernatremia) and had higher in-hospital mortality (32% vs. 13%). Subgroup analyses revealed heightened vulnerability to complications in older men, those from long-term care, and those with at least one geriatric syndrome upon presentation. Conclusions: Older adults presenting to hospital with COVID-19 often have no respiratory symptoms and can present with only a geriatric syndrome. New geriatric syndromes in older individuals should trigger evaluation for COVID-19 and consideration for early initiation of multidisciplinary care to prevent complications.

Trends in Health Service Use for Canadian Adults With Dementia and Parkinson Disease During the First Wave of the COVID-19 Pandemic.

Importance: Persons with dementia and Parkinson disease (PD) are vulnerable to disruptions in health care and services. Objective: To examine changes in health service use among community-dwelling persons with dementia, persons with PD, and older adults without neurodegenerative disease during the first wave of the COVID-19 pandemic. Design Setting and Participants: Repeated cross-sectional analysis using population-based administrative data among community-dwelling persons with dementia, persons with PD, and adults 65 years and older at the start of each week from March 1 through the week of September 20, 2020 (pandemic period), and March 3 through the week of September 22, 2019 (historical period), in Ontario, Canada. Exposures: COVID-19 pandemic as of March 1, 2020. Main Outcomes and Measures: Main outcomes were weekly rates of emergency department visits, hospitalizations, nursing home admissions, home care, virtual and in-person physician visits, and all-cause mortality. Poisson regression models were used to calculate weekly rate ratios (RRs) with 95% CIs comparing pandemic weeks with historical levels. Results: Among those living in the community as of March 1, 2020, persons with dementia (n = 131 466; mean [SD] age, 80.1 [10.1] years) were older than persons with PD (n = 30 606; 73.7 [10.2] years) and older adults (n = 2 363 742; 74.0 [7.1] years). While all services experienced declines, the largest drops occurred in nursing home admissions (RR for dementia: 0.10; 95% CI, 0.07-0.15; RR for PD: 0.03; 95% CI, 0.00-0.21; RR for older adults: 0.11; 95% CI, 0.06-0.18) and emergency department visits (RR for dementia: 0.45; 95% CI, 0.41-0.48; RR for PD: 0.40; 95% CI, 0.34-0.48; RR for older adults: 0.45; 95% CI, 0.44-0.47). After the first wave, most services returned to historical levels except physician visits, which remained elevated (RR for dementia: 1.07; 95% CI, 1.05-1.09; RR for PD: 1.10, 95% CI, 1.06-1.13) and shifted toward virtual visits. Older adults continued to experience lower hospitalizations. All-cause mortality was elevated across cohorts. Conclusions and Relevance: In this population-based repeated cross-sectional study in Ontario, Canada, those with dementia, those with PD, and older adults sought hospital care far less than usual, were not admitted to nursing homes, and experienced excess mortality during the first wave of the pandemic. Most services returned to historical levels, but virtual physician visits remained a feature of care. While issues of equity and quality of care are still emerging among persons with neurodegenerative diseases, policies to support virtual care are necessary.