Oldest-old (age 80+) spousal care-givers of people with dementia experience unique challenges and concerns that they attribute to age and/or ageing, including difficulties providing care because of physical, cognitive or sensory decline; having fewer friends who can provide practical support; and having less energy for non-care-giving activities (e.g. leisure activities, self-care). Previous research on how older care-givers manage is not specific to oldest-old care-givers and may underrepresent their unique experiences managing age and ageing-related challenges. A limited understanding can compromise our ability to tailor services to ageing care-givers. The purpose of this research was to illuminate how oldest-old spousal care-givers of people with dementia manage ageing-related care-giving challenges and the barriers and facilitators to strategy use. The selective optimisation with compensation theory and the transactional theory of stress and coping informed our conceptualisation of management strategies. We used a narrative gerontology approach, with two or three semi-structured interviews with 11 care-givers aged 80–89 (25 interviews in total). Narrative data were analysed thematically. We identified four main themes that encompassed the strategies shared by care-givers: adjusting goals to lessen care-giving demands and to mitigate stress, using alternative means to reach goals and to mitigate stress, enhancing capacities to care and mitigate stress through engagement in non-care-giving activities, and choosing positive attitudes and perspectives to lessen emotional distress. We identified a myriad of facilitators and barriers to strategy utilisation in each theme. The study provides unique insight into care-givers' management strategies, especially in relation to relocation of self and spouse and participation in non-care-giving activities, as well as insight into age-related facilitators and barriers. This research can ultimately help inform the tailoring of age-sensitive health and social care services to meet the needs of this group of care-givers as they age.

Only a few studies have been conducted so far on the long-term impact of war. We investigated whether a life-long impact of the war experiences could be detected in advanced-agers who have successfully overcome all life's challenges. The participants in this study were oldest-old (80+ years) residents of retirement homes in Zagreb (Croatia), who were divided into two groups – ‘war-exposed’ and ‘not-exposed’ – according to their direct war experience (First World War, Second World War, Croatian Homeland War). Within this 1906–1928 birth cohort, a higher percentage of participants with war experiences reached extreme longevity (95+ years). We found no significant difference (p < 0.01) between the two groups concerning demographic and socio-economic characteristics, their life satisfaction, their self-rated current health and functional ability status. Despite numerous similarities, several traits related to life-history, current quality of life, attitudes and reflections distinguish the group of participants with direct war experience. The kind of war involvement – active military service, imprisonment in concentration camps or prisons, forced migration due to war and war-related death of close family members – stretched through various aspects of the life-history features, quality of life and attitudes. It differed for men and women, so it is no wonder that the significance pattern in the two genders mostly seems mutually exclusive. Socio-economic situations strongly differed by gender and according to the kind of war exposure, amplifying the differences within the ‘war-exposed’ group in terms of the life-long impact of wars on their lives. Therefore, we could claim that the war experiences were not the same for everybody, and that they had lasting consequences on the lifecourse of persons who directly faced war-related events. The results also point to the high resilience capacity as a common feature among persons who survived direct exposure to at least two wars and yet survived to exceptionally old age.

Associations between high body mass index (BMI) and subsequent cognitive decline, reported in elderly averaging below age 75, become less consistent at older ages. We compared the associations of BMI with cognition in moderately old (ages 75–84, N = 154) and oldest-old (85+, N = 93) samples. BMI and cognition were assessed cross-sectionally in cognitively intact elderly (mean age = 84.5, SD = 4.4) male veterans. Regression analyses of three cognitive domains — executive functions/language, attention, and memory—compared relationship with BMI between the moderately old and oldest-old. Higher BMI was associated with relatively poorer executive functions/language performance in the moderately old, while the opposite relationship, higher BMI associated with relatively better performance, was found in the oldest-old. Associations for the other two cognitive domains did not differ significantly between age groups. The reversal of association direction for executive functions/language performance with higher BMI is consistent with the protected survivor model. This model posits a minority subpopulation with a protective factor—genetic or otherwise—against both mortality and cognitive decline associated with risk factor status. The very old who remain cognitively intact despite the presence of risk factors are more likely to possess protection.

Faced with the dramatic pace of population ageing, the Shanghai municipal government launched a pilot programme in 2013 designed to address this and to strengthen ageing-in-place arrangements by providing basic in-home medical services for residents above the age of 80. Yet after a two-year trial run, the ‘Home-Based Medical Care Scheme for the Oldest-Old’ (HBMCSOO) policy remained significantly under-utilised despite the increasing demand for medical services. Our multi-disciplinary research team of social workers and anthropologists identified two key factors impeding the implementation of home-based medical care services: (a) the distortion of policy implementation and (b) the inadequate professionalisation of community-based elder-care workers. Based on our evaluation of the pilot programme, the Shanghai municipal government made several practical adjustments to improve the subsequent city-wide policy implemented in 2016. While these changes mostly focused on minor adjustments to improve in-home medical services for the oldest-old, they represent an encouraging first step towards our call for a holistic integrated care system whose design and delivery takes into account local political and social contexts, including existing institutional infrastructure and cultural expectations about care-giving responsibilities. The challenges of implementing Shanghai's HBMCSOO policy ultimately provide instructive lessons on best practices for integrating medical and social services in order to improve ageing-in-place measures in diverse local settings around the world.

Tea consumption may be associated with reduced risk of morbidity and mortality; however, this association is not conclusive and has rarely been investigated among very old adults. The present study examines how self-reported frequency of tea consumption in daily life is associated with health and mortality among very old adults in China. The data are from a national longitudinal data set that included 32 606 individuals (13 429 men and 19 177 women) aged 65 years and older: 11 807 respondents aged 65 to 84 years and 20 799 respondents aged 85 years and older. A total of four measurements between 1998 and 2005 resulted in 51 668 observations. Hazard regressions showed that men who drink tea almost every day have a 10–20 % lower risk of death compared to their counterparts who seldom drink tea, after adjusting for numerous confounders including baseline health. This relationship was stronger in younger male elders aged 65 to 84 years than in the oldest-old men aged 85 years and older. However, frequency of tea consumption was not significantly associated with mortality in women. Our analyses further show that high frequency of tea consumption is significantly associated with reduced OR of disability in activities of daily living, cognitive impairment, self-rated poor health, cumulative health deficits and CVD in both young elders and the oldest-old, and in both men and women. These results suggest that the health benefit of drinking tea is universal. We conclude that frequent tea consumption probably helps one achieve healthy longevity and that men benefit more from such lifestyles.

Vers 2031, les personnes les plus âgées (85 ans et plus) pourraient composer 4 pourcent de la population totale du Canada. Ce document relève les changements constates dans le domaine de l'utilisation des soins de longue durée, des activités de la vie quotidienne (AVQ) et des activités instrumentales de la vie quotidienne (ATVQ) chez les participants les plus âgés du Aging in Manitoba Longitudinal Study, d'après trois éléments répartis sur 13 ans. Parmi les participants, 38,4 pour cent n'avaient pas eu recours aux soins de longue durée pendant la période examinée; entre 75 et 88 pour cent des participants pouvaient continuer à manger, à se déplacer dans leur maison et à se mettre au lit et à en sortir sans aide. En ce qui a trait aux activités instrumentales de la vie quotidienne, la proportion des gens qui n'avait pas besoin d'aide allait de 3 pour cent (réparations dans la maison) à 58 pour cent (se préparer une tasse de thé ou de café). Les résultats de ces analyses signalent l'hétérogénéité des aptitudes fonctionnelles des personnes très âgées et viennent enrichir la documentation portant sur cette tranche de la population.

The Aging in Manitoba (AIM) project includes nearly 9,000 seniors who have been interviewed. Three independent cross-sectional samples (i.e. 1971, 1976, 1983) were subsequently followed (1983–1984, 1990), producing cross-sectional and longitudinal data. A major goal of this paper was to examine non-response over time and representativeness of the panel of AIM survivors. This involved analysis of non-response, calculations of completion/response rates, and comparisons of demographic variables across the AIM sample and the broader Manitoba and Canadian populations. Non-response was very low (4.6% in 1983–1984, 5.0% in 1990) and did not appear to be dependent on such factors as location, gender, education level, or nationality descent. The 95.0 per cent completion rate compares favourably with other longitudinal studies, demonstrating the value of employing rigorous tracking procedures. These findings suggest that attempts to minimize bias and selective attrition in the AIM study have been successful.

This study contributes to our understanding of the ageing process by investigating whether particular psychological dispositions among older people are associated with healthy ageing. The study's objective is to further our knowledge about what constitutes ‘health’ for the ‘oldest-old’ (people aged 80 or more years) in China. It is recognised that apart from the absence of disease, good health is a subjective experience, and it is posited that self-reported health is associated with psychological disposition, or in other words, that an individual's personal attitudes, motivations, and beliefs condition their perception of health and illness. Using data from China's Longitudinal Healthy Longevity Survey (1998 and 2000 waves), we examine whether psychological disposition in 1998 had an independent effect on self-reported health in 2000. The study is based on a stratified random sample of 4,366 people aged 80 or more years. After introducing controls for health status and socio-demographic variables, the multivariate, longitudinal results demonstrate that a robust psychological disposition was indeed associated with good short-term, self-reported health. The findings also illustrate that the effect differed by age, for the relationship was significant for octogenarians and nonagenarians but insignificant for centenarians. Data limitations prevented an empirical investigation of the processes that underlie the relationship between psychological disposition and self-reported health.

Only a few reports exist of plasma amino acid profiles in the oldest-old, and none exist of the oldest-old with cognitive problems. Therefore, we measured fasting plasma amino acid concentrations in twenty-three healthy community-dwellers aged 90–103 years (group A); eighteen community-dwellers with mild cognitive impairment without dementia aged 91–104 years (group B); thirty-three patients with dementia aged 96–100 years (group C); and sixty healthy young controls aged 20–50 years. Biochemical and anthropometric parameters, and the basic activities of daily living (ADL) were also measured. Independent of cognitive status, in all oldest-old groups, essential:non essential amino acids (EAA:NEAA) was lower than in young controls and positively associated with body muscle mass. Patients with dementia were further characterized by a negative association between EAA:NEAA and the number of dependent ADL. All oldest-old groups had higher values of tyrosine:other large neutral amino acids (LNAA) than young controls. Groups B and C also had a higher phenylalanine:other LNAA. These data show that abnormalities in plasma amino acid profile are common in oldest-old individuals independent of their cognitive status, but that, in oldest-old patients with dementia, they are associated with functional disability. The abnormalities in phenylalanine and tyrosine plasma availability could contribute to the cause or aggravation of concurrent cognitive problems because these amino acids are neurotransmitter precursors and compete with other LNAA for transport into the brain.