All-cause mortality and multimorbidity in older adults: The role of social support and loneliness

Multimorbidity of chronic non-communicable diseases in low- and middle-income countries: A scoping review

BACKGROUND

Multimorbidity is rising in low- and middle-income countries (LMICs). However, the evidence on its epidemiology from LMICs settings is limited and the available literature has not been synthesized as yet.

OBJECTIVES

To review the available evidence on the epidemiology of multimorbidity in LMICs.

METHODS

PubMed, Scopus, PsycINFO and Grey literature databases were searched. We followed the PRISMA-ScR reporting guideline.

RESULTS

Of 33, 110 articles retrieved, 76 studies were eligible for the epidemiology of multimorbidity. Of these 76 studies, 66 (86.8%) were individual country studies. Fifty-two (78.8%) of which were confined to only six middle-income countries: Brazil, China, South Africa, India, Mexico and Iran. The majority (n = 68, 89.5%) of the studies were crosssectional in nature. The sample size varied from 103 to 242, 952. The largest proportion (n = 33, 43.4%) of the studies enrolled adults. Marked variations existed in defining and measuring multimorbidity. The prevalence of multimorbidity in LMICs ranged from 3.2% to 90.5%.

CONCLUSION AND RECOMMENDATIONS

Studies on the epidemiology of multimorbidity in LMICs are limited and the available ones are concentrated in few countries. Despite variations in measurement and definition, studies consistently reported high prevalence of multimorbidity. Further research is urgently required to better understand the epidemiology of multimorbidity and define the best possible interventions to improve outcomes of patients with multimorbidity in LMICs.

Lower rates of cancer and all-cause mortality in an Adventist cohort compared with a US Census population

BACKGROUND

Previous research suggests that Adventists, who often follow vegetarian diets, live longer and have lower risks for many cancers than others, but there are no national data and little published comparative data for black subjects.

METHODS

This study compared all-cause mortality and cancer incidence between the nationally inclusive Adventist Health Study 2 (AHS-2) and nonsmokers in US Census populations: the National Longitudinal Mortality Study (NLMS) and its Surveillance, Epidemiology, and End Results substudy. Analyses used proportional hazards regression adjusting for age, sex, race, cigarette smoking history, and education.

RESULTS

All-cause mortality and all-cancer incidence in the black AHS-2 population were significantly lower than those for the black NLMS populations (hazard ratio [HR] for mortality, 0.64; 95% confidence interval [CI], 0.59-0.69; HR for incidence, 0.78; 95% CI, 0.68-0.88). When races were combined, estimated all-cause mortality was also significantly lower in the AHS-2 population at the age of 65 years (HR, 0.67; 95% CI, 0.64-0.69) and at the age of 85 years (HR, 0.78; 95% CI, 0.75-0.81), as was cancer mortality; this was also true for the rate of all incident cancers combined (HR, 0.70; 95% CI, 0.67-0.74) and the rates of breast, colorectal, and lung cancers. Survival curves confirmed the mortality results and showed that among males, AHS-2 blacks survived longer than white US subjects.

CONCLUSIONS

Substantially lower rates of all-cause mortality and cancer incidence among Adventists have implications for the effects of lifestyle and perhaps particularly diet on the etiology of these health problems. Trends similar to those seen in the combined population are also found in comparisons of black AHS-2 and NLMS subjects.

The social cure of social prescribing: a mixed-methods study on the benefits of social connectedness on quality and effectiveness of care provision

OBJECTIVES

This study aimed to assess the degree to which the 'social cure' model of psychosocial health captures the understandings and experiences of healthcare staff and patients in a social prescribing (SP) pathway and the degree to which these psychosocial processes predict the effect of the pathway on healthcare usage.

DESIGN

Mixed-methods: Study 1: semistructured interviews; study 2: longitudinal survey.

SETTING

An English SP pathway delivered between 2017 and 2019.

PARTICIPANTS

Study 1: general practitioners (GPs) (n=7), healthcare providers (n=9) and service users (n=19). Study 2: 630 patients engaging with SP pathway at a 4-month follow-up after initial referral assessment.

INTERVENTION

Chronically ill patients experiencing loneliness referred onto SP pathway and meeting with a health coach and/or link worker, with possible further referral to existing or newly created relevant third-sector groups.

MAIN OUTCOME MEASURE

Study 1: health providers and users' qualitative perspectives on the experience of the pathway and social determinants of health. Study 2: patients' primary care usage.

RESULTS

Healthcare providers recognised the importance of social factors in determining patient well-being, and reason for presentation at primary care. They viewed SP as a potentially effective solution to such problems. Patients valued the different social relationships they created through the SP pathway, including those with link workers, groups and community. Group memberships quantitatively predicted primary care usage, and this was mediated by increases in community belonging and reduced loneliness.

CONCLUSIONS

Methodological triangulation offers robust conclusions that 'social cure' processes explain the efficacy of SP, which can reduce primary care usage through increasing social connectedness (group membership and community belonging) and reducing loneliness. Recommendations for integrating social cure processes into SP initiatives are discussed.

The clinical and economic burden among caregivers of patients with Alzheimer's disease in Canada

OBJECTIVE

To estimate the clinical and direct medical economic burden among Alzheimer disease (AD) caregivers using real-world, longitudinal patient-level data in Canada.

METHODS/DESIGN

This retrospective observational study assessed the clinical and direct medical economic burden among individuals who cohabitate with AD patients ("AD caregiver cohort") compared with older adults who were cohabiting with another adult without dementia ("comparison cohort") using real-world data from the Southwestern Ontario database, a representative Canadian electronic health record (EHR) longitudinal EHR.

RESULTS

The AD caregiver cohort (n = 2749; mild AD: n = 2254, moderate AD: n = 302, and severe AD, n = 193) had a similar or higher level of clinical and economic burden than the comparison cohort (n = 12 152). The overall AD cohort and caregivers of patients with mild AD had a similar clinical burden to the comparison cohort. Those caregiving for more severely affected AD patients had an increased risk of comorbidities and required more medication, physician attention, and hospital encounters compared with caregivers of less severe AD patients and the comparison cohort. Mean annual costs were higher among the AD caregiver cohort than the comparison cohort, and those caregiving for moderate and severe AD patients incurred the highest costs. Overall mortality was higher in the AD caregiver cohort compared with the comparison cohort.

CONCLUSIONS

Caregivers of patients with mild AD had a similar clinical and direct economic burden to older adults who were not dementia caregivers, whereas the burden among caregivers of moderate and severe AD patients was much greater.

Multimorbidity of chronic non-communicable diseases and its models of care in low- and middle-income countries: a scoping review protocol

INTRODUCTION

Multimorbidity is the coexistence of two or more chronic non-communicable diseases (NCDs) in a given individual. Multimorbidity is increasing in low- and middle-income countries (LMICs) and challenging health systems. Individuals with multimorbidity are facing the risk of premature mortality, lower quality of life and greater use of healthcare services. However, despite the huge challenge multimorbidity brings in LMICs, gaps remain in mapping and synthesising the available knowledge on the issue. The focus of this scoping review will be to synthesise the extent, range and nature of studies on the epidemiology and models of multimorbidity care in LMICs.

METHODS

PubMed (MEDLINE) will be the main database to be searched. For articles that are not indexed in the PubMed, Scopus, PsycINFO and Cochrane databases will be searched. Grey literature databases will also be explored. There will be no restrictions on study setting or year of publication. Articles will be searched using key terms, including comorbidity, co-morbidity, multimorbidity, multiple chronic conditions and model of care. Relevant articles will be screened by two independent reviewers and data will be charted accordingly. The result of this scoping review will be presented using the Preferred Reporting Items for Systematic Review and Meta-Analyses Extension for Scoping Reviews (PRISMA-ScR) checklist and reporting guideline.

ETHICS AND DISSEMINATION

This scoping review does not require ethical approval. Findings will be published in peer-reviewed journal and presented at scientific conferences.

Social determinants of multimorbidity and multiple functional limitations among the ageing population of England, 2002-2015

This study explores longitudinal relationships between material, psycho-social and behavioural social determinants of health and multimorbidity of people aged 50 years or older in England. We used data from the English Longitudinal Study of Ageing collected biannually between 2002 and 2015. Apart from the basic measure of multimorbidity (two or more diseases within a person) we constructed two distinct measures of health in order to take into account the biology of ageing (complex multimorbidity and multiple functional limitations).

We found that the likelihood of multimorbidity and multiple functional limitations was consistently associated with the levels of household wealth, sense of control over one's life, physical activity and loneliness. Larger health inequalities were observed when health was measured as complex multimorbidity and multiple functional limitations than basic multimorbidity. Compared to the population group with the highest wealth, those with the lowest wealth had 47% higher odds of basic multimorbidity (95% C.I. 1.34-1.61), 73% higher odds of complex multimorbidity (95% C.I. 1.52-1.96) and 90% higher odds of having 10 or more functional limitations (95% C.I. 1.59-2.26). We did not find a dose-response relationship between alcohol consumption, smoking and multimorbidity but rather evidence of people in ill health actively moderating their health behaviour.

We suggest that materialist models of multimorbidity and functional limitation at older age can not, on their own, explain the health inequalities as the behavioural and psycho-social factors play an important role. Policies aiming to reduce the risk of multimorbidity and functional limitation should address the issue at these three levels simultaneously, using the existing national infrastructure of General Practices.

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Multimorbidity and functional limitation were associated with household wealth, sense of control over life, physical activity, loneliness.

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We observed larger health inequalities for complex multimorbidity and multiple functional limitation than basic multimorbidity.

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Materialist models of multimorbidity do not explain inequalities.

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Behavioural and psycho-social factors play an important role.

Long-term trajectories of depressive symptoms in old age: Relationships with sociodemographic and health-related factors

BACKGROUND

This study aimed at depicting the course of depression symptoms over the old age, with a special interest in a) uncovering its relationships with sociodemographic and health-related factors; b) analysing its predictive role on healthy-ageing outcomes later in life.

METHODS

The sample comprised 8317 older adults (46.02% men) from the English Longitudinal Study of Ageing. Robust structural equation modelling was used to identify symptom trajectories and their relationships with time-varying factors. Trajectory class and covariates were used to predict outcomes (quality of life, satisfaction with life, and daily living functioning) in a 2-year follow-up.

RESULTS

Three trajectory classes (so-called, normative, subclinical, chronic symptom trajectories) were identified for both sexes. Rising hearing difficulties and history of psychiatric problems were consistently associated with the chronic symptom trajectory. Lower education level, history of psychiatric problems, and increasing visual difficulties were connected with the subclinical trajectories. Finally, participants with either a subclinical or a chronic symptom trajectory showed worse outcomes than the remaining participants in the follow-up.

CONCLUSION

This study highlighted the presence of varying courses of depression symptoms (each showing some distinctive features from other another) over the old age, pointing to some relevant implications for clinical assessment and treatment prescription.

Multimorbidity and Mental Health-Related Quality of Life and Risk of Completed Suicide

BACKGROUND

Physical functioning indexed multimorbidity is strongly associated with long-term mortality, but its role in poor mental health has not been quantified.

METHODS

A total of 252 002 community-dwelling adults in the Nurses' Health Study (NHS), NHS II, and Health Professionals Follow-up Study (HPFS) prospective cohorts reported physician-diagnosed diseases and the Short Form-36 over 8 years and had 24-year follow-up for suicide mortality. We quantified multimorbidity using a multimorbidity-weighted index (MWI). We used multivariable-adjusted proportional hazards models with competing risks for suicide mortality and mixed-effects models to estimate mental health-related quality of life (HRQOL).

RESULTS

Multimorbidity was associated with an increased risk of suicide mortality in an approximately linear manner, with roughly two- to threefold higher risk in adults with the highest vs lowest quartile MWI in adjusted models: NHS hazard ratio (HR) = 3.01 (95% confidence interval [CI] = 1.48-6.11); NHS II HR = 3.04 (95% CI = 1.82-5.09); HPFS HR = 1.74 (95% CI = 1.08-2.81). Greater MWI was associated with worse mental HRQOL 8 years later across all scales and the mental component summary (MCS) in a dose-response manner. This association was attenuated but persisted after adjustment for baseline mental HRQOL and other covariates. Adults with the highest quartile MWI had lower MCS in adjusted models compared with those with the lowest quartile MWI: NHS ß = -0.61 (95% CI = -0.78 to -0.44); NHS II ß = -1.25 (95% CI = -1.44 to -1.06).

CONCLUSION

Multimorbidity is associated with substantially higher suicide mortality risk and worse mental HRQOL across all available scales, even when indexed to physical functioning. These results highlight the substantial mental health burden imposed by multimorbidity at all ages and sexes. J Am Geriatr Soc 67:511-519, 2019.

Social isolation and multiple chronic diseases after age 50: A European macro-regional analysis

BACKGROUND

Different studies have found that socioeconomic determinants influence the prevalence of chronic diseases in older people. However, there has been relatively little research on the incidence of how social isolation may affect them. We suggest that social isolation is a serious concern for people living with chronic illnesses.

METHOD

In this paper, we examine whether there is an increase in the propensity of being diagnosed with chronic illnesses because of a decrease in social relations for elderly Europeans. We have used a panel data for Waves 1-6 (2004-2015) of Survey on Health, Ageing and Retirement in Europe (SHARE) and logistic regressions. Besides, we have studied three geographic macro-areas (Nordic, Continental and Southern). Being diagnosed with three or more chronic diseases is considered as a dependent variable, and as social control variables we have used three isolation proxies (living alone, providing help to family, friends or neighbours and participation-club activities). Other socio-demographic variables are included (gender, age, educational level, job situation, area of location and quality of life).

RESULTS

Our results for the full sample indicate that people who participate in social activities have fewer probability of suffering from chronic diseases (OR = 0.70, 95% CI 0.54, 0.92). For people who live alone the reverse effect is observed (OR = 1.20, 95% CI 1.04, 1.39). Differences are shown by macro-areas, e.g. providing help (OR = 0.58, 95% CI 0.34, 0.97) isolation proxy is significant for the Nordic macro-area. Club-participation activities and living alone are significant for Continental and Southern macro-areas, respectively (OR = 0.65, 95% CI 0.55, 0.82; OR = 1.46, 95% CI 1.21, 1.77).

CONCLUSIONS

Social isolation increases the risk of being diagnosed with chronic illnesses. That is, people with greater social participation have lower risk of suffering from multiple chronic diseases. This risk linked to isolation, together with the traditional one associated with lifestyles, should be considered in the development of new public policies.

The impact of socioeconomic status on the association between biomedical and psychosocial well-being and all-cause mortality in older Spanish adults

PURPOSE

The aim of this paper was to analyze the effect of biomedical and psychosocial well-being, based on distinct successful aging models (SA), on time to mortality, and determine whether this effect was modified by socioeconomic status (SES) in a nationally representative sample of older Spanish adults.

METHODS

Data were taken from a 3-year follow-up study with 2783 participants aged 50 or over. Vital status was ascertained using national registers or asking participants' relatives. Kaplan-Meier curves were used to estimate the time to death by SES, and levels of biomedical and psychosocial SA. Cox proportional hazard regression models were conducted to explore interactions between SES and SA models while adjusting for gender, age, and marital status.

RESULTS

Lower levels of SES and biomedical and psychosocial SA were associated with low probability of survival. Only the interaction between SES and biomedical SA was significant. Biomedical SA impacted on mortality rates among individuals with low SES but not on those with medium or high SES, whereas psychosocial SA affected mortality regardless of SES.

CONCLUSIONS

Promoting equal access to health care system and improved psychosocial well-being could be a protective factor against premature mortality in older Spanish adults with low SES.