Due to increasing life expectancy over time, persons who live into their nineties, known as nonagenarians, are an important and growing segment of the Canadian population. In 2001, there were 130,325 nonagenarians (compared to 3,795 centenarians), and it is estimated that they will top 400,000 by 2026. This paper provides a health profile and an exploratory analysis of selected social determinants of health for community-living nonagenarians, using the 2001 Canadian Community Health Survey (Statistics Canada, 2003). Perceived health, a selection of prevalent chronic illnesses, and several health behaviours are examined. One dominant pattern is the tendency for male nonagenarians to be in better health than their female counterparts. This finding is consistent with research on centenarians and is discussed in terms of a mortality selection effect. Other key findings include the strength of sense of belonging, income, and physical activity as potential social determinants of health, connected to particular dimensions of health status.

Early differential diagnosis of dementia is becoming increasingly important as new pharmacologic therapies are developed, as these treatments are not equally effective for all types of dementia. Early detection and differential diagnosis also facilitates informed family decision making and timely access to appropriate services. Information about gait characteristics is informative in the diagnostic process and may have important implications for discriminating among dementia subtypes. The aim of this review paper is to summarize existing research examining the relationships between gait and dementia, including gait classification systems and assessment tools, gait patterns characteristic of different dementias (Alzheimer's disease, vascular dementia, dementia with Lewy Bodies, and fronto-temporal dementia), and the utility of gait analysis in early-stage diagnosis. The paper concludes with implications for future research.

We investigated whether frailty, defined as the accumulation of multiple, interacting illnesses, impairments and disabilities, is associated with psychiatric illness in older adults. Five-thousand-six-hundred-and-seventy-six community dwellers without dementia were identified within the Canadian Study of Health and Aging, and self-reported psychiatric illness was compared by levels of frailty (defined by an index of deficits that excluded mental illnesses). People with psychiatric illness (12.6% of those surveyed, who chiefly reported depression) had a higher mean frailty index value than those who did not. Older age was not associated with higher odds of psychiatric illness. Taking sex, frailty, and education into account, the odds of psychiatric illness decreased with each increasing year of age (OR 0.95; 95% CI, 0.94–0.97). Frailty was associated with psychiatric illness; for each additional deficit-defining frailty, odds of psychiatric illness increased (OR 1.23; 95% CI, 1.19–1.26). Similarly, psychiatric illness was associated with much higher odds of being among the most frail. These findings lend support to a multidimensional conceptualization of frailty. Our data also suggest that health care professionals who work with older adults with psychiatric illness should expect frailty to be common, and that those working with frail seniors should consider the possible co-existence of depression and psychiatric illness.

The Functional Transitions Model (FTM) integrates the theoretical notions of progressive functional decline associated with Alzheimer's disease (AD), excess disability, and transitions occurring intermittently along the trajectory of functional decline. Application of the Functional Transitions Model to clinical practice encompasses the paradox of attempting to minimize excess disability while anticipating the progressive functional decline associated with AD. It is suggested that times of functional transition are times of decision making and opportunities for interdisciplinary collaboration to identify and minimize excess disability, for revision of goals and expectations, and for provision of support to patients and caregivers. The model also is applicable as a conceptual framework for education and research.

Cost-effective methods have been developed to help busy emergency department (ED) staff cope with the growing number of older patients, including quick screening and assessment tools to identify those at high risk and note their specific needs. This survey, from a sample of key informants from all EDs (n=111) in the province of Quebec (participation rate of 88.2%), investigated the implementation of these tools and barriers to implementation. Questionnaires (administered either by telephone or by self-completion) included characteristics of the ED, characteristics of the respondent, use of tools, and method of implementation. Barriers to the implementation of these tools included lack of resources for screening and follow-up, misunderstandings of the difference between screening and assessment tools, and need for adaptation of the tools to the local context. Education of staff and pre-implementation adaptation and testing are needed for successful implementation.

Little is known as yet about the impact of telesurveillance services on social participation. To document the interaction between telesurveillance services and social participation of the elderly living at home, a study was conducted in the context of a government call center employing nurses. A focus group study was realized with elders (n=4), caregivers (n=6), healthcare system practitioners and industry employees (n=7). A qualitative analysis was performed using the Disability Creation Process model and generally accepted criteria for evaluating telehealth interventions. The results showed, on the one hand, factors that facilitate the use of telesurveillance services (user's intellectual capabilities, acceptance of clinical settings, relevance of recommendations, cost of service, and accessibility) and, on the other, factors that reinforce such use (user behaviors; level of satisfaction; impact on informal caregiver; system's level of performance; technical features; and life-habit aspects such as personal transportation, sleep, housekeeping, personal care, interpersonal relationships, and recreational activities).