Association of frailty with health service utilisation and health care expenditure in sub-Saharan Africa: evidence from Côte d'Ivoire

Association between frailty and subjective life expectancy in Sub-Saharan Africa: Evidence from Côte D'Ivoire

AIM

Frailty and Subjective Life Expectancy are important determinants of the health and well-being of older adults. This study aims to investigate the relationship between frailty and Subjective Life Expectancy in Sub-Sahara Africa.

METHODS

This study is a cross-sectional study involving 1,017 older adults aged 50 years and above across three regions of Côte d'Ivoire. A 30-item Frailty Index was used to determine the prevalence of frailty. Subjective Life Expectancy was measured using self-reported estimates of expected lifespan. The point estimate and probabilistic procedures were used, with target ages set at 60, 80, 85, and 90 years. A non-parametric estimation procedure was used to compute the average life expectancy at individual level based on data from the probabilistic procedure. The distributional effects of frailty on Subjective Life Expectancy were assessed with the quantile selection model.

RESULTS

The results indicate that, more than half (59.3 %) of the study participants were frail, 24.6 % were pre-frail and 16.1 % were non-frail. Being frail was negatively associated with Subjective Life Expectancy. Frail individuals had up to 3.7 years lower Subjective Life Expectancy compared to the non-frail individuals. Compared to individuals aged 50-54, those aged 55-59 and 80+ years had 4.8 and 27.8 years lower Subjective Life Expectancy respectively.

CONCLUSION

The study demonstrates a close connection between frailty and Subjective Life Expectancy among older adults, suggesting that interventions aimed at preventing or reducing frailty can influence Subjective Life Expectancy and overall well-being.

Cost of illness analysis of frailty for older adults: a systematic review and meta-analysis

PURPOSE

The increasing burden of out-of-pocket expenses borne by older adults with frailty can be a considerable challenge in efforts toward improving societal health. This study estimated the cost of frailty for older adults by employing cost of illness theory.

METHODS

Five electronic databases were searched (without any language or year restriction) for relevant articles from their inception to April 2024. Studies investigating the cost of frailty and prefrailty for older adults (aged ≥ 60 years) were included.

RESULTS

A total of 51 studies were included. The findings revealed that frailty significantly increased mean total costs by US$3286 and US$4653 compared with the costs for individuals with prefrailty and robustness, respectively. The cost difference between the prefrailty and robust groups was US$2729. The increases in indirect costs did not significantly differ between the prefrailty and robust groups or between the frailty and robust groups. The total cost by setting was significantly increased in the frailty group relative to the prefrailty and robust groups. The results stratified by continent or region revealed that only the frailty and prefrailty groups in North America experienced significant increases in total costs relative to the robust group. However, in the Asia-Pacific region and Europe, no significant results were noted.

CONCLUSIONS

This is the first meta-analysis to employ cost of illness theory to investigate the cost of frailty. Our findings can help providers of health-care services and professional workers develop effective and comprehensive intervention plans and services that can be provided for older adults with frailty.

Application of frailty screening instruments for older people in Sub-Saharan Africa: A scoping review

BACKGROUND

Frailty and frailty screening of older people is increasingly becoming a global public health concern. The health domains and elements that constitute frailty may differ across different settings. The choice of frailty screening instruments can therefore affect frailty diagnosis and potentially delay interventions. The aim of this scoping review is to explore the application of frailty screening instruments among older people in Sub-Saharan Africa.

METHOD

Six databases (Google Scholar, CINAHL, SCOPUS, African Journal online, PubMed, and Africa Index Medicus) were searched for literature published between January 2000 and August 2023. Studies that reported on using frailty screening instruments for older people aged 50 years and above in Sub-Saharan Africa were included in the review.

RESULTS

The search across the six databases yielded 362 results. Seventeen studies from ten countries met the eligibility criteria and were included in this review. Seven frailty screening instruments were identified across the included studies. Frailty screening is gaining attention in Sub-Saharan Africa. Majority of the frailty screening instruments were developed and validated in high-income countries. Only one frailty screening instrument was developed and validated in Sub-Saharan Africa.

CONCLUSION

Considering the impact of frailty on the health and wellbeing of older people, researchers must consider developing and using frailty screening instruments that assess domains that are pertinent to the health and wellbeing of older people in Sub-Saharan Africa.

Prevalence and Correlates of Frailty Among Older People With and Without HIV in Rural Uganda

BACKGROUND

The relationship between HIV and frailty, a predictor of poor outcomes in the face of stressors, remains unknown in older people in sub-Saharan Africa.

METHODS

We analyzed data from the Quality of Life and Ageing with HIV in Rural Uganda cohort study to estimate the prevalence and correlates of frailty among older people with HIV (PWH) on long-term antiretroviral therapy and among age- and sex-matched HIV-uninfected comparators. Frailty was defined as a self-report of 3 or 4 (and pre-frailty as 1 or 2) of the following phenotypic variables: weight loss, exhaustion, low activity, and slowness. We estimated the prevalence of frailty and prefrailty and fitted logistic regression models to estimate the association between HIV and frailty, adjusting for sociodemographic factors, depression, and other comorbidities.

RESULTS

We enrolled 599 participants (49% women) with a mean age of 58 years. PWH had a similar prevalence of frailty (8.1% vs. 10.9%, P = 0.24) but a lower prevalence of prefrailty (54.2% vs. 63.2%, P = 0.03) compared with their HIV-uninfected comparators. In multivariable regression models, people with depression [adjusted odds ratio (AOR) 7.52 (95% CI: 3.67 to 15.40), P < 0.001] and those with ≥1 comorbidities [AOR 3.15 (95% CI: 1.71 to 3.82), P < 0.001] were more likely to be frail. HIV serostatus was not significantly associated with frailty [AOR 0.71 (95% CI: 0.37 to 1.34), P = 0.29].

CONCLUSIONS

Older PWH had a similar prevalence of frailty as those without HIV. These findings call for additional study of the factors that contribute to the robustness of older PWH in sub-Saharan Africa.

Global burden of childhood nutritional deficiencies, 1990-2019

OBJECTIVES

The aim of this study was to estimate the global burden, trends and health inequality of childhood nutritional deficiencies (CND) from 1990 to 2019.

STUDY DESIGN

This was an epidemiological study.

METHODS

Data were extracted from the 2019 Global Burden of Disease study. Estimates and 95% uncertainty intervals (UIs) for the rates and numbers were used to evaluate the global burden of CND. Temporal trends in the burden of CND were examined using Joinpoint analysis and average annual percentage changes. To assess health inequality, the slope index was used.

RESULTS

In 2019, 52 million new cases of CND and 105,000 deaths related to CND were recorded. Additionally, 435 million prevalence cases and 26 million disability-adjusted life years (DALYs) were recorded in the same year. From 1990 to 2019, the incidence rate of CND generally increased globally, except for the years 2010-2017; conversely, the prevalence, death and DALY rates exhibited decreasing trends over the study period. Half of the analysed regions and countries/territories demonstrated decreasing trends in the incidence, prevalence, death and DALY rates associated with CND. The incidence and prevalence of CND remained high in low-middle sociodemographic index (SDI) and low-SDI regions; however, they exhibited decreasing trends over the 30-year study period. The slope indexes showed that there were no significant changes in SDI-related inequality over 30 years.

CONCLUSIONS

Despite decreasing trends in the prevalence, death and DALY rates associated with CND over the three decades, the degree of inequality related to SDI in the burden of nutritional deficiencies has not shown a significant decline. In summary, CND remain a major public health burden in middle-SDI and low-SDI countries.

Levels of frailty and frailty progression in older urban- and regional-living First Nations Australians

OBJECTIVES

To explore the prevalence of frailty, association between frailty and mortality, and transitions between frailty states in urban- and regional-living First Nations Australians.

STUDY DESIGN

Secondary analysis of longitudinal data from the Koori Growing Old Well Study. First Nations Australians aged 60 years or more from five non-remote communities were recruited in 2010-2012 and followed up six years later (2016-2018). Data collected at both visits were used to derive a 38-item Frailty Index (FI). The FI (range 0-1.0) was classified as robust (<0.1), pre-frail (0.1- < 0.2), mildly (0.2- < 0.3), moderately (0.3- < 0.4) or severely frail (≥0.4).

MAIN OUTCOME MEASURES

Association between frailty and mortality, examined using logistic regression and transitions in frailty (the percentage of participants who changed frailty category) during follow-up.

RESULTS

At baseline, 313 of 336 participants (93 %) had sufficient data to calculate a FI. Median FI score was 0.26 (interquartile range 0.21-0.39); 4.79 % were robust, 20.1 % pre-frail, 31.6 % mildly frail, 23.0 % moderately frail and 20.5 % severely frail. Higher baseline frailty was associated with mortality among severely frail participants (adjusted odds ratio 7.11, 95 % confidence interval 2.51-20.09) but not moderately or mildly frail participants. Of the 153 participants with a FI at both baseline and follow-up, their median FI score increased from 0.26 to 0.28.

CONCLUSIONS

Levels of frailty in this First Nations cohort are substantially higher than in similar-aged non-Indigenous populations. Screening for frailty before the age of 70 years may be warranted in First Nations Australians. Further research is urgently needed to determine the factors that are driving such high levels of frailty and propose solutions to prevent or manage frailty in this population.

Measuring the effects of nurse-led frailty intervention on community-dwelling older people in Ethiopia: a quasi-experimental study

BACKGROUND

Despite the critical need, interventions aimed at frailty in sub-Saharan Africa are scarce, attributed to factors such as insufficient healthcare infrastructure, the pressing need to address infectious diseases, maternal and child health issues, and a general lack of awareness. Hence, the aim of this research was to develop, implement, and evaluate the effect of a nurse-led program on frailty and associated health outcomes in community-dwelling older individuals in Ethiopia.

METHODS

This study utilised a pre-test, post-test, and follow-up single-group quasi-experimental design. The main outcome measure was to determine changes in the frailty levels of older individuals living in communities at three different intervals: initially (T0), immediately after the intervention (T1), and 12 weeks following the intervention (T2). Secondary outcomes were the observed changes in daily living activities, nutritional status, depression levels, and quality of life (QOL), evaluated at each of these data collection points. To analyse changes in frailty and response variables over these periods, Friedman's ANOVA and Cochran's Q test were employed, setting the threshold for statistical significance at P < 0.05.

RESULTS

Sixty-six older people with a high adherence rate of 97% completed the intervention and the follow-up measurements. Participants had an average age of 66.7 ± 7.9 years, with females comprising 79.4% of the group. Notably, 12 weeks post-intervention, there was a marked decrease in frailty (χ2(2) = 101.05, p < 0.001) and depression scores (χ2(2) = 9.55, p = 0.008) compared to the baseline. However, the changes in depression, physical, mental, and environmental domains of QOL were not sustained for 12 weeks post-intervention. Study participants showed an improvement in nutritional status (χ2(2) = 25.68, p < 0.001), activity of daily living (χ2(2) = 6.00, p = 0.05), and global quality of life (χ2(2) = 20.64, p < 0.001).

CONCLUSIONS

The nurse-led intervention notably, 12 weeks post-intervention reduced frailty and depression. The intervention improved the nutritional status and some components of the quality of life of the participants. There is a need for further studies, especially with larger participant groups and stronger research designs such as randomized controlled trials (RCTs).

TRIAL REGISTRATION

ClinicalTrials.gov: NCT05754398 (03/03/2023).

Assessing frailty amongst older people admitted to hospital in a low-income setting: a multicentre study in northern Tanzania

BACKGROUND

Populations are ageing globally and Low- and Middle-Income Countries (LMICs) are experiencing the fastest rates of demographic change. Few studies have explored the burden of frailty amongst older people in hospital in LMICs, where healthcare services are having to rapidly adapt to align with the needs of older people. This study aimed to measure the prevalence of frailty amongst older people admitted to hospital in Tanzania and to explore their demographic and clinical characteristics.

METHODS

This study had a prospective observational design. Over a six-month period, all adults ≥ 60 years old admitted to medical wards in four hospitals in northern Tanzania were invited to participate. They were screened for frailty using the Clinical Frailty Scale (CFS) and the Frailty Phenotype (FP). Demographic and clinical characteristics of interest were recorded in a structured questionnaire. These included the Barthel Index, the Identification of Elderly Africans Instrumental Activities of Daily Living (IADEA-IADL) and Cognitive (IDEA-Cog) screens, the EURO-D depression scale and Confusion Assessment Method.

RESULTS

540 adults aged ≥ 60 were admitted, and 308 completed assessment. Frailty was present in 66.6% using the CFS and participants with frailty were significantly older, with lower levels of education and literacy, greater disability, greater comorbidity, poorer cognition and higher levels of delirium. Using the FP, 57.0% of participants were classed as frail though a majority of participants (n = 159, 51.6%) could not be classified due to a high proportion of missing data.

CONCLUSIONS

This study indicates that the prevalence of frailty on medical wards in northern Tanzania is high according to the CFS. However, the challenges in operationalising the FP in this setting highlight the need for future work to adapt frailty screening tools for an African context. Future investigations should also seek to correlate frailty status with long-term clinical outcomes after admission in this setting.

Marital transitions and frailty among middle-aged and older adults in China: The roles of social support

Background

This study explored the association of marital transitions and frailty among Chinese middle-aged and older people and whether this association differs by social support.

Methods

We used a sample of 12,388 adults aged ≥45 years who participated in the China Health and Retirement Longitudinal Study (CHARLS) between 2015 and 2018. Between-wave changes in marital status ("married at both times", "unmarried to married", "married to unmarried", "unmarried at both times") were used to explore the changes in frailty measured by the frailty index (FI), which was constructed from 55 health variables. Social support was evaluated based on social engagement and intergenerational support. The associations among marital transitions, social support and frailty were analyzed using generalized estimating equations (GEEs).

Results

The mean FI of 12,388 participants was 0.23 (SD = 0.13). Participants who were married to unmarried (β = 0.014, B = 0.005, P = 0.012) and unmarried at both times (β = 0.022, B = 0.003, P < 0.001) had significant a positive impact on FI compared with participants who were married at both times. Social engagement, financial support by children and providing care to grandchildren had an interactive effect with marital transitions in influencing FI.

Conclusions

Being unmarried may increase frailty among Chinese middle-aged and older adults. Financial support by children may mitigate the adverse effects of being unmarried on frailty.

Development and Validation of an Electronic Frailty Index Using Routine Electronic Health Records: An Observational Study From a General Hospital in China

Background: This study aimed to develop and validate an electronic frailty index (eFI) based on routine electronic health records (EHR) for older adult inpatients and to analyze the correlations between frailty and hospitalized events and costs.

Methods: We created an eFI from routine EHR and validated the effectiveness by the consistency of the comprehensive geriatric assessment-frailty index (CGA-FI) with an independent prospective cohort. Then, we analyzed the correlations between frailty and hospitalized events and costs by regressions.

Results: During the study period, 49,226 inpatients were included in the analysis, 42,821 (87.0%) of which had enough data to calculate an eFI. A strong correlation between the CGA-FI and eFI was shown in the validation cohort of 685 subjects (Pearson's r = 0.716, P < 0.001). The sensitivity and specificity for an eFI≥0.15, the upper tertile, to identify frailty, defined as a CGA-FI≥0.25, were 64.8 and 88.7%, respectively. After adjusting for age, sex, and operation, an eFI≥0.15 showed an independent association with long hospital stay (odds ratio [OR] = 2.889, P < 0.001) and death in hospital (OR = 19.97, P < 0.001). Moreover, eFI values (per 0.1) were positively associated with total costs (β = 0.453, P < 0.001), examination costs (β = 0.269, P < 0.001), treatment costs (β = 0.414, P < 0.001), nursing costs (β = 0.381, P < 0.001), pharmacy costs (β = 0.524, P < 0.001), and material costs (β = 0.578, P < 0.001) after adjusting aforementioned factors.

Conclusions: We successfully developed an effective eFI from routine EHR from a general hospital in China. Frailty is an independent risk factor for long hospital stay and death in hospital. As the degree of frailty increases, the hospitalized costs increase accordingly.