The well-being of community-dwelling near-centenarians and centenarians in Hong Kong: a qualitative study

Positive Aspects of Caregiving in Familial Care for Nonagenarians and Centenarians: Findings from Hong Kong Centenarian Study

Caregiving for the fast-growing but vulnerable oldest-old population may involve distinct challenges but also gratification. We analyzed quantitative and qualitative data from family caregivers of community-dwelling older adults aged 95 or above in Hong Kong. Quantitative analysis of 143 caregivers revealed that higher age, dependence on basic activities of daily living, independence on instrumental activities of daily living, and intact hearing ability of the older adults, and absence of a domestic helper and better self-rated health of the caregivers were associated with more positive aspects of caregiving. Qualitative analysis of the 96 caregivers who mentioned at least a positive aspect from their caregiving identified three themes: acquiring caregiving skills, fulfilling family love and obligation, and preparing for graceful aging. Our findings elaborated the nature and mechanism of caregiving gains against the unique backdrop of exceptional longevity and the Chinese cultural expectations of filial piety.

Multiple Roads to Success: A Latent Class Analysis on Successful Ageing Among Hong Kong Near-Centenarians and Centenarians (NCC)

Notwithstanding the oldest-old cohort being the fastest-growing population in most ageing societies, characterizing successful ageing in adults of advanced age, such as nonagenarians and centenarians, remains challenging. This study investigated the successful ageing subphenotypes using the data from Hong Kong Centenarian Study 2. Between April 2021 and September 2022, 146 family caregivers of community-dwelling older adults aged 95 or above were interviewed by phone. Latent class analysis identified three classes-Overall Frail (46.6%) with poor mobility, cognitive and functional health, Nonambulant (37.0%) but good functional health, and Robust (16.4%) with overall good health-from 11 indicators based on caregivers' reports. Although we found a low prevalence of fulfillment of all indicators of successful ageing, our findings will help care professionals appreciate the heterogeneity underlying partial successful ageing in this vulnerable cohort for segmented and targeted healthy longevity interventions.

The Association Between Depression and Death Anxiety Among Older Adults: Moderating Effect of Ego-Integrity

This study verifies the relationship between depression and death anxiety in older adults and the moderating effect of ego-integrity on this relationship. The survey was conducted with 236 participants aged 65 years and older through a combination of online and offline surveys. The final data were analyzed using the PROCESS macro for SPSS 2.16. The main findings of this study are as follows: First, depression in old age was positively related to anxiety about death. Second, the moderating effect of ego-integrity was observed on the relationship between depression and death anxiety. Third, on examining the moderating effect of each sub-variable of ego-integrity, the moderating effect of satisfaction with one's life was observed to be significant. Conversely, the moderating effect of attitude toward life and acceptance of old age was not significant. The results of this study are meaningful in examining the moderating effect of ego-integrity on the relationship between depression and death anxiety. Furthermore, the results of this study can provide basic data for the development and application of psychological intervention programs for older adults experiencing psychological problems due to depression and death anxiety in old age.

Understanding the experience of living well, beyond the age of 85 years: a qualitative analysis using themes from a meta-ethnography

BACKGROUND

Increase in life-expectancy is not necessarily matched by an increase in quality of life.

OBJECTIVE

(1) To explore the quality of life of patients over the age of 85 in the second decade following unicompartmental knee replacement surgery (2) To understand the usefulness of a priori themes from an evidence synthesis as a framework for primary qualitative analysis.

DESIGN

Qualitative Research. A hermeneutic phenomenological approach, using a priori themes as sensitising concepts.

PARTICIPANTS

Adults over the age of 85 who were part of an outcomes study in the second decade following unicompartmental knee joint replacement.

METHODS

Semi-structured interviews in people's homes. Transcripts were coded and data sorted using a priori themes as sensitising concepts. Data that did not fit these themes, or that added nuance, were analysed thematically through constant comparison.

RESULTS

We interviewed seven white women and five white men, aged 85-100. Data resonated with a priori themes and supported additional themes that help us to understand older peoples' experience: (1) losing our autonomy can be challenging, so be kind; (2) we must take care of our own bodies and the NHS; (3) I am more afraid of not dying.

CONCLUSIONS

Findings indicate that health outcomes for older people should incorporate measures of participation and well-being; they highlight the importance of kindness in healthcare; they indicate that older people do not want to place additional burden on the NHS, and this can act as a barrier to care; they support the need for open conversations about dying well.

To Live or Die: What to Wish at 100 Years and Older

Previous research has shown that will to live is a strong predictor for survival among older people, irrespective of age, gender, and comorbidities. However, research on whether life at age 100 is perceived as worth living is limited. The available literature has presented evidence for good levels of positive attitudes and life satisfaction at such an advanced age, but it has also suggested that a longing for death is common. This study aimed to add to the existing data on this matter by exploring centenarians' will to live and the associated factors. The sample comprised 121 centenarians (mean age, 101 years; SD, 1.63 years), 19 (15.7%) of whom were males, from two centenarian studies (PT100). Answers to open questions were analyzed to identify the centenarians' will to live and the reasons behind it. Three groups were created (willing to live longer, not willing to live longer, no clear positioning) and further analyzed in terms of sociodemographic characteristics, health status, social functioning, and well-being. Of the total sample, 31.4% expressed willingness to live longer, 30.6% did not, and 38% presented no clear positioning. The presence of the Catholic religion (God) was referred for centenarians in all three groups. Annoyance, uselessness, loss of meaning, disconnection, and loneliness were the most common justifications for being reluctant to live longer. Positive valuation of life and good self-rated health, followed by having a confidant and reduced pain frequency, were the factors associated with being willing to live longer. The results of the study contribute to the understanding of the psychological functioning of individuals with exceptional longevity, particularly concerning the factors behind willingness to live at such an advanced age.

Existential Suffering in Palliative Care: An Existential Positive Psychology Perspective

The COVID-19 pandemic has exposed the inadequacies of the current healthcare system and needs a paradigm change to one that is holistic and community based, illustrated by the healing wheel. The present paper proposes that existential positive psychology (PP 2.0) represents a promising approach to meet the rising needs in palliative care. This framework has a twofold emphasis on (a) how to transcend and transform suffering as the foundation for wellbeing and (b) how to cultivate our spiritual and existential capabilities to achieve personal growth and flourishing. We propose that these objectives can be achieved simultaneously through dialectical palliative counselling, as illustrated by Wong's integrative meaning therapy and the Conceptual Model of CALM Therapy in palliative care. We then outline the treatment objectives and the intervention strategies of IMT in providing palliative counselling for palliative care and hospice patients. Based on our review of recent literature, as well as our own research and practice, we discover that existential suffering in general and at the last stage of life in particular is indeed the foundation for healing and wellbeing as hypothesized by PP 2.0. We can also conclude that best palliative care is holistic-in addition to cultivating the inner spiritual resources of patients, it needs to be supported by the family, staff, and community, as symbolized by the healing wheel.

Health Behaviors and Self-Reported Oral Health among Centenarians in Nanjing, China: A Cross-Sectional Study

The role of health behaviors in oral health conditions in individuals of extremely old age remains understudied. This study included 185 participants aged 100 years or older from the Nanjing Centenarians Study (NCS) to examine the associations between health behaviors and oral health and investigate the potential moderating role of education and living arrangements in such relationships. The oral health status as an outcome included the self-reported oral health status and edentulous status. Health behavior variables included smoking, eating fruits, eating vegetables, participating in leisure activities, and practicing oral hygiene behaviors. Sociodemographic characteristics and health status were considered as confounders. Descriptive statistics, ordinal regression, and logistic regression models were used to address the research questions. Results showed that better oral health was reported by centenarians who were non-smokers, participated in more leisure activities, and practiced higher frequency of oral hygiene behaviors. Those who ate fruits daily and practiced more frequently oral hygiene behaviors were more likely to be dentate. The positive association of oral hygiene behaviors was stronger for centenarians who were formally educated and co-resided with family members. The results suggest that effective interventions should consider health behaviors and living arrangements in this growing population to improve their oral health status.

Physical and mental health in the oldest-old: a mixed-methods study on a southern Italy sample

BACKGROUND

The world's aging population has been constantly increasing in the last decades, causing the number oldest-old individuals to increase.

AIMS

The present study aims to explore the different variables that contribute to the oldest-old wellbeing using a mixed-methods approach, including self-reports, standardized measures, and semi-structured interviews.

METHODS

Thirty-nine oldest-old (90-103) from southern Italy were involved in the study, together with a control sample of younger individuals (51-71) from the same families.

RESULTS

Data suggest that the oldest-old have better mental health, higher resilience, and more optimism than younger individuals. High resilience seems to be the key variable that promotes the overall wellbeing.

DISCUSSION

The oldest-old tend to have better mental health, higher resilience and more optimism than younger individuals.

CONCLUSIONS

Wellbeing in the oldest-old appeared to be promoted by the sense of belonging and life purpose.

A research agenda for ageing in China in the 21st century (2nd edition): Focusing on basic and translational research, long-term care, policy and social networks

One of the key issues facing public healthcare is the global trend of an increasingly ageing society which continues to present policy makers and caregivers with formidable healthcare and socio-economic challenges. Ageing is the primary contributor to a broad spectrum of chronic disorders all associated with a lower quality of life in the elderly. In 2019, the Chinese population constituted 18 % of the world population, with 164.5 million Chinese citizens aged 65 and above (65+), and 26 million aged 80 or above (80+). China has become an ageing society, and as it continues to age it will continue to exacerbate the burden borne by current family and public healthcare systems. Major healthcare challenges involved with caring for the elderly in China include the management of chronic non-communicable diseases (CNCDs), physical frailty, neurodegenerative diseases, cardiovascular diseases, with emerging challenges such as providing sufficient dental care, combating the rising prevalence of sexually transmitted diseases among nursing home communities, providing support for increased incidences of immune diseases, and the growing necessity to provide palliative care for the elderly. At the governmental level, it is necessary to make long-term strategic plans to respond to the pressures of an ageing society, especially to establish a nationwide, affordable, annual health check system to facilitate early diagnosis and provide access to affordable treatments. China has begun work on several activities to address these issues including the recent completion of the of the Ten-year Health-Care Reform project, the implementation of the Healthy China 2030 Action Plan, and the opening of the National Clinical Research Center for Geriatric Disorders. There are also societal challenges, namely the shift from an extended family system in which the younger provide home care for their elderly family members, to the current trend in which young people are increasingly migrating towards major cities for work, increasing reliance on nursing homes to compensate, especially following the outcomes of the 'one child policy' and the 'empty-nest elderly' phenomenon. At the individual level, it is important to provide avenues for people to seek and improve their own knowledge of health and disease, to encourage them to seek medical check-ups to prevent/manage illness, and to find ways to promote modifiable health-related behaviors (social activity, exercise, healthy diets, reasonable diet supplements) to enable healthier, happier, longer, and more productive lives in the elderly. Finally, at the technological or treatment level, there is a focus on modern technologies to counteract the negative effects of ageing. Researchers are striving to produce drugs that can mimic the effects of 'exercising more, eating less', while other anti-ageing molecules from molecular gerontologists could help to improve 'healthspan' in the elderly. Machine learning, 'Big Data', and other novel technologies can also be used to monitor disease patterns at the population level and may be used to inform policy design in the future. Collectively, synergies across disciplines on policies, geriatric care, drug development, personal awareness, the use of big data, machine learning and personalized medicine will transform China into a country that enables the most for its elderly, maximizing and celebrating their longevity in the coming decades. This is the 2nd edition of the review paper (Fang EF et al., Ageing Re. Rev. 2015).

Investigation of healthy living strategies in elderly who achieved to live long and healthy

Objective

To determine the lifestyles, healthy living strategies and socio-cultural characteristics of elderly people who lived long and healthy.

Methods

This study was a cross-sectional study. This study was conducted on 472 elderly patients, aged 80 years and over, selected by random sampling method. The socio-demographic characteristics and daily living activities of the elderly were determined by face to face interview technique using the "Elderly Questionnaire" developed by the researchers in 2018. Chi-square test was used for statistical analysis.

Results

Based on the average age (84) of the elderly in the research group, it was seen that they were able to exceed the average life expectancy of their fathers (72) and mothers (73). It has been found that the participants live 11-12 years longer than their parents. It was also found that more than half (51.9%) of the elderly have the habit of walking regularly every day. It was determined that the elderly mostly consumed vegetables and fruits (88.5%), milk and dairy products and meat, respectively.

Conclusion

The elderly stated that natural and healthy nutrition, working and staying away from stress in the top three places as the reason of their long and healthy life.

The Experience of Living to an Extreme Age: A Meta-Ethnography

Advances in health care mean that we can now treat diseases that once cut lives short. However, the increase in life expectancy has not been matched by improvements in quality of life. The World Health Organization warns us that all countries should prepare to meet the challenges of an aging population and this is integral to the United Nations 2030 Agenda for Sustainable Development. This may require a shift in attitude toward aging. We aimed to use meta-ethnography to explore the experience of adults living beyond the age of 80. Our conceptual model illuminates the phenomenon of connection in older age and reflects on the paradox of time: ephemeral, yet interminable. Our findings encourage us to reflect on the influence of enlightenment philosophies that underpin the desire for autonomy at all costs. Our study challenges the stereotypes of old age and has the potential to influence people's perspectives toward aging.

Physical, cognitive, behavior, and negative emotion in older adults living in China: a national population-based survey

Background

Previous studies have concentrated on predictors of exceptional longevity, however, relevant studies have rarely extended to other fields of functioning. To date, little is known about what contributes to the experience of negative emotion in a very old population.

Objective

We aimed to provide a comprehensive key domain of functioning, including physical, cognitive, behavior, and negative emotion in older adults (OAs), followed by determination of predictors of negative emotion.

Methods

Data were collected from a nationally representative sample of 2570 Chinese OAs (aged 60 and above) from the 2014 wave of the Chinese Longitudinal Healthy Longevity Survey. Physical function was assessed using activities of daily living (ADL) and instrumental activities of daily living (IADL) measures. Cognitive function was assessed by the Modified Mini-Mental State Examination (mMMSE). Participants' behavior included smoking, drinking, exercise, physical labor, and social activities. Negative emotion was assessed using four items on affective experiences to create an index of emotional well-being. The associations between various covariates and multiple health outcomes were examined using Pearson's correlation. Multiple linear regressions were established to verify significant variables associated with respondents' negative emotion.

Results

The mean age was 80.20 years (SD=8.60). The mean ADL total score of the sample was 17.78 (SD=0.89), mean IADL total score was 21.93 (SD=3.69), the mean mMMSE total score was 21.63 (SD=2.23), the mean negative emotion total score was 8.89 (SD=2.64). Multiple linear regression analyses revealed that negative emotion was associated with self-perceived low economic status, poor self-rated health condition, poor sleep quality, low IADL function, less regular exercising, living in rural, and being female.

Conclusion

Limited physical functioning and social resources in rural residence may restrict the outpouring of emotion in OAs. Nevertheless, further intensive studies are warranted to provide guidance for the development of better living environment for this elderly population.

A Cross-Sectional Study of Compositional and Functional Profiles of Gut Microbiota in Sardinian Centenarians

Sardinia, Italy, has a high prevalence of residents who live more than 100 years. The reasons for longevity in this isolated region are currently unknown. Gut microbiota may hold a clue. To explore the role gut microbiota may play in healthy aging and longevity, we used metagenomic sequencing to determine the compositional and functional differences in gut microbiota associated with populations of different ages in Sardinia. Our data revealed that the gut microbiota of both young and elderly Sardinians shared similar taxonomic and functional profiles. A different pattern was found in centenarians. Within the centenarian group, the gut microbiota was correlated with the functional independence measurement of the host. Centenarians had a higher diversity of core microbiota species and microbial genes than those in the young and elderly. We found that the gut microbiota in Sardinian centenarians displayed a rearranged taxonomic pattern compared with those of the young and elderly, featured by depletion of Faecalibacterium prausnitzii and Eubacterium rectale and enriched for Methanobrevibacter smithii and Bifidobacterium adolescentis Moreover, functional analysis revealed that the microbiota in centenarians had high capacity for central metabolism, especially glycolysis and fermentation to short-chain fatty acids (SCFAs), although the gut microbiota in centenarians was low in genes encoding enzymes involved in degradation of carbohydrates, including fibers and galactose.IMPORTANCE The gut microbiota has been proposed as a promising determinant for human health. Centenarians as a model for extreme aging may help us understand the correlation of gut microbiota with healthy aging and longevity. Here we confirmed that centenarians had microbiota elements usually associated with benefits to health. Our finding of a high capacity of glycolysis and related SCFA production represented a healthy microbiome and environment that is regarded as beneficial for host gut epithelium. The low abundance of genes encoding components of pathways involved in carbohydrate degradation was also found in the gut microbiota of Sardinian centenarians and is often associated with poor gut health. Overall, our study here represents an expansion of previous research investigating the age-related changes in gut microbiota. Furthermore, our study provides a new prospective for potential targets for gut microbiota intervention directed at limiting gut inflammation and pathology and enhancing a healthy gut barrier.

‘Just another day’: the lived experience of being a hundred years old for ten New Zealanders

The aim of this study was to gain an understanding of the experiences of extended longevity as perceived by centenarians. Centenarians (people over 100 years of age) are the fastest growing group of the ageing population in developed countries. Ten centenarians aged between 100 and 106 years, living in the Lower North Island of New Zealand, participated in the study. The biographical narrative interpretive method of inquiry guided data collection through face-to-face interviews, and thematic analysis was subsequently undertaken. Four themes were identified: (a) ‘becoming a centenarian: ‘Just another day’; (b) ‘growing up in a privileged environment’ that revealed four sub-themes: ‘having freedom and choice’, ‘being loved and nurtured’, ‘living healthy lifestyles’ and having ‘good education prospects’; (c) ‘unique opportunities in adult life’; and (d) ‘positive ageing and celebration of longevity’. The centenarians spoke nonchalantly about their experience of turning 100 and positive personalities were prominent features of the participants, who all expressed a sense of acceptance and satisfaction with life and contentment with living in the present, a feature throughout their lives that was ongoing and at an intergenerational level. This study has provided further insights into the existing literature on longevity and through the narratives of the centenarians has demonstrated the value of Erikson's psycho-social stages of development and Tornstam's theory of gerotranscendence when considering positive ageing.

Preparing for a paradigm shift in aging populations: listen to the oldest old

PURPOSE

Current healthcare systems are not suitable for serving future societies in which the oldest old are commonplace. The objective of this study was to understand what the oldest old care most about in their daily lives.

METHODS

Semi-structured in-depth interviews and thematic analysis were used. Face-to-face interviews were conducted in 17 elderly residents (≥ 95 years) of Arakawa-ku, Tokyo, Japan from July to November 2017.

RESULTS

Three themes emerged from the interview responses: "unshakable beliefs and social ties," "natural acceptance," and "my day-to-day life with precious moments." The oldest old strongly believe in diligence and compassion and maintain strong relationships with people around them. Despite their small social networks, they are concerned about future society. They accept their selves and their lives, including their impending deaths. Despite their functional decline, they control their lives by making very small decisions. They live on a moment-to-moment basis, cherishing simple events.

CONCLUSION

Maintaining autonomy through making small decisions and enjoying small pleasures are important to the oldest old. Understanding the needs of the oldest old is the first step towards developing optimal geriatric care for an aging population.

Mixed-methods quantitative-qualitative study of 29 nonagenarians and centenarians in rural Southern Italy: focus on positive psychological traits

OBJECTIVE

This was a study of positive psychological traits in a group of rural Italians aged 90 to 101 years, and their children or other family members.

DESIGN

Mixed-methods quantitative (standardized rating scales) and qualitative (semi-structured interviews) study.

SETTING

Study participants' homes in nine villages in the Cilento region of southern Italy.

PARTICIPANTS

Twenty-nine nonagenarians and centenarians and 51 family members aged 51-75 years, selected by their general practitioners as a part of a larger study called CIAO (Cilento Initiative on Aging Outcomes).

METHODS

We used published rating scales of mental and physical well-being, resilience, optimism, anxiety, depression, and perceived stress. Qualitative interviews gathered personal narratives of the oldest-old individuals, including migrations, traumatic events, and beliefs. Family members described their impressions about the personality traits of their older relative.

RESULTS

Participants age ≥90 years had worse physical health but better mental well-being than their younger family members. Mental well-being correlated negatively with levels of depression and anxiety in both the groups. The main themes that emerged from qualitative interviews included positivity (resilience and optimism), working hard, and bond with family and religion, as described in previously published studies of the oldest old, but also a need for control and love of the land, which appeared to be unique features of this rural population.

CONCLUSIONS

Exceptional longevity was characterized by a balance between acceptance of and grit to overcome adversities along with a positive attitude and close ties to family, religion, and land, providing purpose in life.

Successful aging among Chinese near-centenarians and centenarians in Hong Kong: a multidimensional and interdisciplinary approach

OBJECTIVES

This study applied a multidimensional model on a continuum to examine successful aging (SA) and investigated whether SA is associated with biomedical and psychosocial-demographic factors among Hong Kong Chinese near-centenarians and centenarians.

METHOD

A cross-sectional data analysis was performed on a geographically representative sample of 120 near-centenarians and centenarians with an age range of 95-108 years. We developed an integrated and cumulative Successful Aging Index (SAI) based on participants' performance in four dimensions: (1) physical and functional health (PF), (2) psychological well-being and cognition (PC), (3) social engagement and family support (SF), (4) economic resources and financial security (EF). To examine the criterion validity of SAI, we conducted a multiple binary logistic regression with interviewer-rated health. A multiple regression model was ran to investigate the independent biomedical and psychosocial-demographic correlates of SAI.

RESULTS

Results show that only 5.8% of participants attained SA in all four dimensions. PF had the least achievers, whereas the proportion was the highest in PC. SAI was significantly associated with interviewer-rated health and a high level of high-density lipoprotein cholesterol. Living with family or friends, high level of optimism, fewer diseases, and barriers to social activities were independent predictors of SAI score.

CONCLUSION

In the light of the lack of consensus on the constituents and assessment of SA especially among very old adults, our findings add to the extant literature by underscoring the importance of the multidimensional nature and the utility of an integrated and cumulative-based assessment of SA at the extreme of longevity.

Depression Moderates the Frailty-Subjective Health Link among Chinese Near Centenarians and Centenarians

OBJECTIVE

Very old adults may be physically frail, but they do not necessarily experience poor subjective health. The authors hypothesized that the relationship between frailty and subjective health is moderated by depression for very old people.

METHODS

In a cross-sectional study, a survey administered was by a face-to-face interview to 129 community-dwelling older adults aged 95-108. Measurements included the five-item FRAIL scale, the Geriatric Depression Scale Short-Form (GDS), and a subjective health rating. Hierarchical multiple regressions were conducted to test the moderation effects, adjusting for age, gender, living arrangement, perceived socioeconomic status, and cognition.

RESULTS

The interaction effect between frailty and depression was significant. Inspection of the simple slopes revealed that those who were more depressed had a more negative frailty-subjective health relationship. There was no significant moderation effect for a withdrawal-apathy-vigor dimension of the GDS.

CONCLUSION

Our findings suggest a protective psychological mechanism may enable very old adults to maintain an optimistic view of their health despite their increasing physical and functional limitations.

Positive attitude toward life, emotional expression, self-rated health, and depressive symptoms among centenarians and near-centenarians

OBJECTIVES

Favorable attitudes, emotions, personality characteristics, and self-rated health have been associated with successful aging in late life. However, less is known regarding these constructs and their relationships to mental health outcomes in the oldest old persons. This study examined cross-sectional relationships of these psychological factors to depressive symptoms in centenarians and near-centenarians.

METHODS

A selected sample of Ashkenazi Jewish older adults aged 98-107 (n = 54, 78% female) without significant cognitive impairment participated. Cognitive function was assessed by Mini-Mental Status Examination, positive attitude toward life and emotional expression by the Personality Outlook Profile Scale (POPS), self-rated health by participants' subjective rating of their present health, and depressive symptoms by the Geriatric Depression Scale.

RESULTS

Results demonstrated inverse associations of the positive attitude toward life domain of the POPS and self-rated health with participants' levels of depressive symptoms even after adjusting for the effects of history of medical illnesses, cognitive function, and demographic variables. Additionally, participants with high levels of care showed higher levels of depressive symptoms. Path analysis supported the partially mediating role of positive attitude toward life in the relationship between self-rated health and depressive symptoms.

CONCLUSION

These findings emphasized the important roles of positive attitudes and emotions as well as self-rated health in mental health outcomes in the oldest old. Although, limited by its cross-sectional design, findings suggest these psychological factors may exert protective effects on mental health outcomes in advanced age.

ICC-dementia (International Centenarian Consortium - dementia): an international consortium to determine the prevalence and incidence of dementia in centenarians across diverse ethnoracial and sociocultural groups

Background

Considerable variability exists in international prevalence and incidence estimates of dementia. The accuracy of estimates of dementia in the oldest-old and the controversial question of whether dementia incidence and prevalence decline at very old age will be crucial for better understanding the dynamics between survival to extreme old age and the occurrence and risk for various types of dementia and comorbidities. International Centenarian Consortium – Dementia (ICC-Dementia) seeks to harmonise centenarian and near-centenarian studies internationally to describe the cognitive and functional profiles of exceptionally old individuals, and ascertain the trajectories of decline and thereby the age-standardised prevalence and incidence of dementia in this population. The primary goal of the ICC-Dementia is to establish a large and thorough heterogeneous sample that has the power to answer epidemiological questions that small, separate studies cannot. A secondary aim is to examine cohort-specific effects and differential survivorship into very old age. We hope to lay the foundation for further investigation into risk and protective factors for dementia and healthy exceptional brain ageing in centenarians across diverse ethnoracial and sociocultural groups.

Methods

Studies focusing on individuals aged ≥95 years (approximately the oldest 1 percentile for men, oldest 5th percentile for women), with a minimum sample of 80 individuals, including assessment of cognition and functional status, are invited to participate. There are currently seventeen member or potential member studies from Asia, Europe, the Americas, and Oceania. Initial attempts at harmonising key variables are in progress.

Discussion

General challenges facing large, international consortia like ICC-Dementia include timely and effective communication among member studies, ethical and practical issues relating to human subject studies and data sharing, and the challenges related to data harmonisation. A specific challenge for ICC-Dementia relates to the concept and definition of’abnormal’ in this exceptional group of individuals who are rarely free of physical, sensory and/or cognitive impairments.

Physical, cognitive, social and mental health in near-centenarians and centenarians living in New York City: findings from the Fordham Centenarian Study

BACKGROUND

Despite their strong increase, the population of the very old, including near-centenarians and centenarians, represent an unstudied and underserved population. Available studies mostly concentrate on predictors of exceptional longevity, but rarely extend their focus to other areas of functioning. Also, little is known about what contributes to experiencing a quality life in very old age. The present population-based study aims at providing a comprehensive picture of key domain of functioning, including physical, cognitive, social and mental function in very old individuals and to determine predictors of mental health indicators.

METHODS

A total of 119 individuals aged 95 to 107 living in private dwellings and residential care facilities were recruited based on the New York City Voters Registry. Participants answered questions regarding their health and activities of daily living. Their cognitive functioning was determined using the Mini-Mental State Examination and the Global Deterioration Scale. Social resources were measured with number of children and the Lubben Scale. Mental health was assessed with the Geriatric Depression Scale and the Satisfaction with Life Scale.

RESULTS

An unexpectedly large proportion of the sample lived in the community. On average, cognitive functioning was high. Although five diseases were reported on average, participants reported good health. Functional status was reduced. Most participants had at least one person for communication/social support. On average, depression was below cut-off, and most participants reported high life satisfaction. Regression analyses indicated that individual differences in depression were associated with subjective health, IADL and relatives support. For life satisfaction, subjective health, ADL and number of children were most important. Demographic characteristics, number of illnesses or cognitive status were not significant.

CONCLUSIONS

Despite reduced levels of physical functioning and social resources, very old participants were in good mental health suggesting high resilience and ability to adapt to age-associated challenges. That a large proportion of them lived in the community further highlights their desire for leading an autonomous life, which may have been facilitated by New York service culture. More research is necessary to provide guidance for the development of well-suited services for this very old population.

A research agenda for aging in China in the 21st century

China is encountering formidable healthcare challenges brought about by the problem of aging. By 2050, there will be 400 million Chinese citizens aged 65+, 150 million of whom will be 80+. The undesirable consequences of the one-child policy, rural-to-urban migration, and expansion of the population of 'empty nest' elders are eroding the traditional family care of the elders, further exacerbating the burden borne by the current public healthcare system. The challenges of geriatric care demand prompt attention by proposing strategies for improvement in several key areas. Major diseases of the elderly that need more attention include chronic non-communicable diseases and mental health disorders. We suggest the establishment of a home care-dominated geriatric care system, and a proactive role for researchers on aging in reforming geriatric care through policy dialogs. We propose ideas for preparation of the impending aging burden and the creation of a nurturing environment conducive to healthy aging in China.