A comparison between physical and biopsychosocial measures of frailty: Prevalence and associated factors in Brazilian older adults

Prevalence of multidimensional frailty among community-dwelling older adults: A systematic review and meta-analysis

OBJECTIVE

The aims of this systematic review were to explore the pooled prevalence of multidimensional frailty assessed by the Tilburg Frailty Indicator among community-dwelling older adults.

DESIGN

A systematic review and meta-analysis.

METHODS

A comprehensive literature search was conducted across multiple databases, including PubMed, Web of Science, Embase, the Cochrane Library, CINAHL and three Chinese databases. Two independent researchers selected the literatures, extracted the data and evaluated the quality. All statistical analyses were performed using STATA version 16.0.

RESULTS

There were 66 studies with a total of 40,597 individuals that were eligible for the meta-analysis. Data from the meta-analysis revealed the pooled prevalence of 42 % for multidimensional frailty (95 % CI: 38 %-45 %, I2 = 98.9 %, T2 = 0.024, p < 0.001). Among the six studies that provided data for different age groups, the results demonstrated an increasing trend in the prevalence of multidimensional frailty with advancing age. The results of gender-stratified analysis proved that the pooled prevalence of multidimensional frailty in women (45 %, 95 % CI: 39 %-51 %, p < 0.001) was higher than that in men (33 %, 95 % CI: 28 %-39 %, p < 0.001). Based on different education levels, the prevalence of multidimensional frailty is highest in the primary elementary or illiterate group (41 %, 95 % CI: 30 %-52 %, p < 0.001). According to different marital status types, the pooled prevalence of multidimensional frailty in the married group was significantly lower (36 %, 95 % CI: 28 %-43 %) than that in the unmarried, divorced or widowed group (51 %, 95 % CI: 37 %-65 %).

CONCLUSIONS

Through a comprehensive review, we identified that 42 % of elderly individuals living in communities exhibit multidimensional frailty, indicating that multidimensional frailty is relatively common in this population. Stratified analysis revealed that advanced age, female gender, lower education level and unmarried status were associated with higher rates of multidimensional frailty.

Obesity, birth weight, and lifestyle factors for frailty: a Mendelian randomization study

Obesity, birth weight and lifestyle factors have been found associated with the risk of frailty in observational studies, but whether these associations are causal is uncertain. We conducted a two-sample Mendelian randomization study to investigate the associations. Genetic instruments associated with the exposures at the genome-wide significance level (p < 5 × 10-8) were selected from corresponding genome-wide association studies (n = 143,677 to 703,901 individuals). Summary-level data for the frailty index were obtained from the UK Biobank (n = 164,610) and Swedish TwinGene (n = 10,616). The β of the frailty index was 0.15 (p = 3.88 × 10-9) for 1 standard deviation increase in the prevalence of smoking initiation, 0.19 (p = 3.54 × 10-15) for leisure screen time, 0.13 (p = 5.26 × 10-7) for body mass index and 0.13 (p = 1.80 × 10-4) for waist circumference. There was a suggestive association between genetically predicted higher birth weight and moderate-to-vigorous intensity physical activity with the decreased risk of the frailty index. We observed no causal association between genetically predicted age of smoking initiation and alcoholic drinks per week with the frailty index. This study supports the causal roles of smoking initiation, leisure screen time, overall obesity, and abdominal obesity in frailty. The possible association between higher birth weight, proper physical activity and a decreased risk of frailty needs further confirmation.

Investigation and analysis of frailty and nutrition status in older adult patients with hip fracture

BACKGROUND

To analyze the current situation of frailty and the main influencing factors of frailty of older patients with hip fracture.

METHODS

Using a fixed-point consecutive sampling method, we investigated older adult patients with hip fracture aged ≥60 years who were hospitalized in an orthopedic ward of a tertiary hospital from January 2021 to March 2022. We also assessed the prevalence of frailty and malnutrition by trial of the fatigue, resistance, aerobic capacity, illnesses, and loss of weight (FRAIL) scale and the Global Leadership Initiative on Malnutrition criteria to analyze the factors influencing frailty.

RESULTS

A total of 216 older adult patients with hip fracture were collected, 106 (49.08%) were frail, 72 (33.33%) were prefrail, 38 (17.59%) were nonfrail, 103 (47.69%) were at overall nutrition risk, and 76 (35.19%) were malnourished. The results of bivariate correlation analysis showed that frailty score was correlated with age, the Activity of Daily Living Scale (ADL) score, body mass index (BMI), C-reactive protein, hemoglobin (Hb), serum albumin (ALB), and serum prealbumin, and was negatively correlated with ADL score, BMI, Hb, and ALB (r = -0.399, -0.420, -0.195, -0.283, respectively; P < 0.05). The results of multiple linear regression analysis showed that age, number of underlying diseases, ADL score, BMI score, and nutrition status were important influencing factors of frailty (P < 0.05).

CONCLUSION

Older adult patients with hip fracture are frail and prefrail, with a high prevalence of malnutrition. Advanced age, combined underlying diseases, and a low BMI score were risk factors for preoperative frailty.

To validate the integral conceptual model of frailty among community-dwelling older adults in China: a cross-sectional study

PURPOSE

The integral conceptual model of frailty (ICFM) integrates physical, psychological, social aspects of individuals and stresses that frailty is a dynamic state evolving over time. This study aimed to validate the ICMF among community-dwelling older adults in China.

METHODS

The study recruited 341 older community-dwelling adults by convenient sampling method between June 1 and August 30, 2019 in Hubei province, China. The data was collected by questionnaire-based survey. Frailty was assessed by the Chinese version of the Tilburg Frailty Index. Participants were assessed for life-course determinants, disease and adverse health outcomes. Hierarchical regression analyses, Bootstrap method and the structural equation model were conducted in data analysis.

RESULTS

Both linear and logistic hierarchical regression models were statistically significant. Life-course determinants, disease, and three domains of frailty together explained 35.6% to 50.6% of the variance of disability and all domains of quality of life. The mediation effect of frailty between disease and all adverse outcomes was significant, excluding hospitalization. The structural equation model guided by the ICMF fits the data well.

CONCLUSIONS

The ICMF is valid among community-dwelling older adults in China. Therefore, the multidimensional concept of frailty should be widely used in Chinese communities.

Factors associated with frailty syndrome in older adults with three- and four-criteria clustering

This study aimed to identify the main clusters of diagnostic criteria pertaining to frailty syndrome as well as the factors associated with the occurrence of frailty without diagnostic criteria clusters and with clusters of three and four criteria. This is a cross-sectional study, carried out with 216 older adults. In order to determine the dependent variable, a combination of the following criteria for frailty syndrome diagnostic criteria was used: unintentional weight loss, exhaustion, muscle weakness, a low level of physical activity, and a slow gait speed. There were different clusters of Frailty Syndrome diagnostic criteria and were associated with Frailty with clustering of three criteria, age group ≥80 years and negative self-perception of health and Frailty with clustering of four criteria, age group ≥80 years and polypharmacy use. Age, self-perception of health, and polypharmacy can be assessed to target different intervention plans in the frail older adult population.

Frailty Viewed From a Nursing Perspective

Introduction

More and more researchers are convinced that frailty should refer not only to physical limitations but also to psychological and social limitations that older people may have. Such a broad, or multidimensional, definition of frailty fits better with nursing, in which a holistic view of human beings, and thus their total functioning, is the starting point.

Purpose

In this article, which should be considered a Practice Update, we aim at emphasizing the importance of the inclusion of other domains of human functioning in the definition and measurement of frailty. In addition, we provide a description of how district nurses view frailty in older people. Finally, we present interventions that nurses can perform to prevent or delay frailty or its adverse outcomes. We present, in particular, results from studies in which the Tilburg Frailty Indicator, a multidimensional frailty instrument, was used.

Conclusion

The importance of a multidimensional assessment of frailty was demonstrated by usually satisfactory results concerning adverse outcomes of mortality, disability, an increase in healthcare utilization, and lower quality of life. Not many studies have been performed on nurses' opinions about frailty. Starting from a multidimensional definition of frailty, encompassing physical, psychological, and social domains, nurses are able to assess and diagnose frailty and conduct a variety of interventions to prevent or reduce frailty and its adverse effects. Because nurses come into frequent contact with frail older people, we recommend future studies on opinions of nurses about frailty (e.g., screening, prevention, and addressing).

The Tilburg Frailty Indicator: A psychometric systematic review

BACKGROUND

The Tilburg Frailty Indicator (TFI) is one of the most prominent multidimensional frailty assessment instruments. This review aimed to critically appraise and summarise its measurement properties.

METHODS

Reports were eligible if they included results of studies aimed at developing the TFI or evaluating its measurement properties. We performed a literature search in MEDLINE, CINAHL, and PsycINFO databases from their inception until December 8, 2021. We also searched grey literature databases. We assessed the methodological quality of the included studies using the "COSMIN Risk of Bias". The measurement properties were evaluated using specific criteria. We graded the quality of the evidence using a GRADE approach.

RESULTS

Sixty-three studies were included. We found moderate sufficient evidence for TFI content validity, although it is still insufficient for the comprehensiveness of its items. TFI construct validity was based on sufficient evidence from two studies of its structural validity as well as multiple hypothesis-testing for construct validity studies with inconsistent results. We did not find any studies that assessed cross-cultural validity. Only one of TFI's three dimensions showed sufficient evidence for the internal consistency of its scores, and results in test-retest reliability were inconsistent. The TFI showed high sufficient concurrent validity with the comprehensive geriatric assessment. We identified several studies assessing its predictive validity for adverse frailty-related outcomes, although most of the evidence from these studies was insufficient. We did not find any studies that assessed the responsiveness of TFI scores.

CONCLUSIONS

The TFI had evidence gaps in several relevant measurement properties. Further research is needed to strengthen its usefulness as a clinical decision-making tool.

A multidimensional approach to frailty compared with physical phenotype in older Brazilian adults: data from the FIBRA-BR study

BACKGROUND

Frailty is a predictor of negative health outcomes in older adults. The physical frailty phenotype is an often used form for its operationalization. Some authors have pointed out limitations regarding the unidimensionality of the physical phenotype, introducing other dimensions in the approach to frailty. This study aimed to create a multidimensional model to evaluate frailty in older Brazilian adults and to compare the dimensions of the model created among the categories of the physical frailty phenotype.

METHODS

A cross-sectional study was conducted using data from 3569 participants (73.7 ± 6.6 years) from a multicenter and multidisciplinary survey (FIBRA-BR). A three-dimensional model was developed: physical dimension (poor self-rated health, vision impairment, hearing impairment, urinary incontinence, fecal incontinence, and sleeping disorder), social dimension (living alone, not having someone who could help when needed, not visiting others, and not receiving visitors), and psychological dimension (depressive symptoms, concern about falls, feelings of sadness, and memory problems). The five criteria of the phenotype created by Fried and colleagues were used to evaluate the physical frailty phenotype. The proposed multidimensional frailty model was analyzed using factorial analysis. Pearson's chi-square test was used to analyze the associations between each variable of the multidimensional frailty model and the physical phenotype categories. Analysis of variance compared the multidimensional dimensions scores among the three categories of the physical frailty phenotype.

RESULTS

The factorial analysis confirmed a model with three factors, composed of 12 variables, which explained 38.6% of the variability of the model data. The self-rated health variable was transferred to the psychological dimension and living alone variable to the physical dimension. The vision impairment and hearing impairment variables were dropped from the physical dimension. The variables significantly associated with the physical phenotype were self-rated health, urinary incontinence, visiting others, receiving visitors, depressive symptoms, concern about falls, feelings of sadness, and memory problems. A statistically significant difference in mean scores for physical, social, and psychological dimensions among three physical phenotype categories was observed (p < 0.001).

CONCLUSIONS

These results confirm the applicability of our frailty model and suggest the need for a multidimensional approach to providing appropriate and comprehensive care for older adults.

Association between lifestyle behaviors and frailty in Atlantic Canadian males and females

PURPOSE

The aim of this study was to identify lifestyle factors in males and females that are associated with a greater degree of frailty in a Canadian cohort.

METHODS

Cross-sectional data analysis from participants aged 30-74 yrs of the Atlantic PATH cohort. Inclusion criteria included completion of mental health questionnaires and ≥1 vital measure (n = 9133, 70% female, mean age 55 yrs). A frailty index was created based on 38 items with higher values indicating increasing frailty. The association between lifestyle factors and frailty was assessed by logistic regression.

RESULTS

805 participants had a high level of frailty (frailty index ≥0.30). There was a significant interaction among sex, age, and lifestyle factors such as smoking status (P < 0.001), alcohol consumption (P < 0.001), physical activity level (P = 0.005), time spent sitting (P < 0.001) and sleeping (P < 0.001) on frailty. Smoking was harmful whereas sleep was protective for both males and females (<60 yrs). Females (<60yrs) that sat for ≥4 h/day were more likely to be highly frail whereas females (all ages) that consumed alcohol at least occasionally were less likely to be highly frail. Males, but not females, that engaged in a high level of physical activity were less likely to have a high level of frailty.

CONCLUSIONS

Higher frailty is more prevalent among participants with unhealthy lifestyle behaviors related to smoking, alcohol consumption, sedentary and physical activity level, diet, and sleep. Differences in lifestyle behaviors of males and females of specific ages should be considered for managing frailty levels.

Epidemiology of frailty and associated factors among older adults living in rural communities in Taiwan

Frailty is a well-known geriatric syndrome with strong adverse health impact to older people. The socio-economic status and the accessibility of health services in rural communities may increase the risk of frailty. We conducted a cross-sectional study in rural districts of New Taipei City, Taiwan, to explore the epidemiology and associated factors of frailty. Data of 1014 participants (mean age: 78.7 ± 8.0 years, 66.3 % females) were obtained with the prevalence of frailty and pre-frailty 17.6 % and 23.1 %, respectively. The mean Barthel Index was 98.5 ± 5.8, and their mean Instrumental Activities of Daily Living (IADL) were 7.2 ± 1.5. Frail older people tended perform worse in timed up-and-go tests (24.7 % in frailty and 0.4 % in robust). The mean mini-mental state examination (MMSE) score for all participants was 23.3 ± 5.1, but was lower in frail older for around 5 points. Depressive symptoms were more common in frail older persons than robust ones (31.5 % vs 14.3 %), which was similar in the nutritional status. Results of the logistic regression showed that better education, IADL and MMSE scores were protective factors against frailty. The presence of depressive symptoms, urinary incontinence, abnormal performance of TUG, and the presence of the risk for malnutrition were all independent assciated factors for frailty. In conclusion, the prevalence of frailty was higher among older adults living in rural communities that deserves specific public health attentions. Further intervention study covering special needs in rural communities is needed to promote health of older people.