AMJ Vol 10 No 1 March 2023.indd Althea Medical Journal. 2023;10(1) 37 Low Bone Mineral Density, Sedentary Lifestyle, and Depression as Risk Factors for Frailty Syndrome at a Home Care Facility in West Jakarta, Indonesia Yvonne Suzy Handajani,1 Jonathan Christianto,2 Nelly Tina Widjaja1 1Centre for Health Research, Atma Jaya Catholic University of Indonesia, Jakarta, Indonesia, 2School of Medicine and Health Sciences Atma Jaya Catholic University of Indonesia, Jakarta, Indonesia Correspondence: Prof. Dr. drg. Yvonne Suzy Handajani, MKM, Centre for Health Research, Atma Jaya Catholic University of Indonesia, Jalan Pluit Raya No. 2, North Jakarta, Indonesia, E-mail: yvonne.hand@atmajaya.ac.id Introduction Life expectancy is increasing globally. The rising life expectancy has led to the growth of the elderly population. In Indonesia, the Centre Bureau of Statistics of Indonesia in 2018 reported that the life expectancy for women was 73.19 years, and for men it was 69.3 years.1 The percentage of Indonesian elderly is expected to reach 21.4% by 2050.2,3 Indonesia has entered the aging population era because its elderly population has already surpassed 7% of the nation’s total population.2 The increase in the elderly population may reflect the success of the nation’s social and economic development. On the other hand, it may also affect the nation’s healthcare sector. The elderly tend to have a decline in functional capability and adaptation as a result of the body system’s function deterioration, which is often referred to as a frailty syndrome. Frailty is a condition related to aging. Frailty phenotypes include decreased strength of handgrips, exhaustion, body weight loss, low physical activity, and slow speed gait.4 A systematic review reported the prevalence of frailty and pre-frail in the community of 10.7% and 41.6%, respectively 5 whereas a study in Indonesia reported the prevalence of frailty was 52.2%.6 Frailty increases the risk of premature death, falls, fractures, dementia which impair quality of life therefore, increasing health care cost.7 A study in Germany has shown a relationship between an increase in the frailty index and an increase in health care costs.8 The cost for frailty in-patient was €2,104, higher than that of a non-frailty patient (€268). For its Althea Medical Journal. 2023;10(1):37–42 Abstract Background: The life expectancy in Indonesia is increasing. The rising number of the elderly people plays a vital role for a country to achieve development success. However, it has many consequences in the health sector, including a frailty syndrome. This study aimed to explore the association between frailty and related factors. Methods: : This cross-sectional study was conducted at a home care facility in West Jakarta between September and October 2019, using a simple random sampling method. Data were analyzed using the chi-square test and multivariate logistic regression. The inclusion criteria were members of the home care aged ≥60 years and had signed a written informed consent. Results: In total, 97 respondents were included. Female gender and bone mineral density (BMD) were associated with frailty syndrome (p=0.018 and p=0.05, respectively). Multivariate logistic regression analysis showed the odds ratio of frailty for the female gender (OR= 3.319; 95% CI 1.045–10.543), low bone mineral density (OR= 4.939; 95% CI 1.516–16.090), depression (OR= 7.622; 95% CI 1.246 – 46.621), and low physical activity (OR = 3.639; 95% CI 1.096 – 12.079). Conclusions: There is a relationship between female gender and bone mineral density with frailty syndrome with the risk factors for frailty syndrome in this study are female gender, low bone mineral density, depression, and low physical activity. Keywords: Bone density, depression, elderly, frailty, physical activity https://doi.org/10.15850/amj.v10n1.2683 Althea Medical Journal. 2023;10(1) 38 risks and impacts, frailty can be a concerning issue for the elderly population. The elderly may develop various health problems such as nutrition, bone density, disability, physical activity, and depression as they get older. Research on the relationship between bone mineral density and frailty syndrome in Indonesia is still limited. The purpose of this study was to determine the association between frailty and its risk factors, especially bone mineral density, at a home care facility in West Jakarta. Methods The design of this study was analytic and cross- sectional, conducted between September and October 2019 at a home care facility in West Jakarta, Indonesia. The sampling method used in this study was simple random sampling. The minimum sample size was 96. The sample size was calculated using planned proportion at a 95% confidence level to achieve a 5% margin of error, with previous frailty prevalence in Indonesia of 52.2%.6 After obtaining permission from the head of home care and written informed consent signed by the respondents, the respondents were recruited. Respondents with physical and mental limitations were excluded. Characteristic of respondents included age, gender, and educational level. Furthermore, data on body mass index (BMI), bone mineral density (BMD), functional status, depression, and physical activity were collected. Body mass index (BMI) was categorized by measuring the body weight and height using a stature meter and weight scale. Bone mineral density was measured using bone sonometry and categorized into three groups namely normal, osteopenia, and osteoporosis. The assessment of activity of daily living (ADL) and instrumental activity of daily living (IADL) was done using the Barthel index and categorized into three groups namely independent, ADL or IADL disability, ADL and IADL disability. Physical activity was measured using a 24-hour physical activity recall report and converted to physical activity ratio (PAR) to calculate the physical activity level (PAL) formula with the final score category such as sedentary, active, and very active. Depression was assessed by the geriatric depression scale (GDS) with categories: not depressed, probably depressed, and depressed. Frailty was assessed by the Survey of Health, Aging, and Retirement in Europe frailty instrument (SHARE-Fi), as depicted in Table 1. The SHARE-Fi contains the Fried phenotypes of frailty, including decreased strength of handgrips, exhaustion, body weight loss, low physical activity, and slow speed gait, with closed questions in every aspect except for the strength of handgrips. The result of SHARE was converted through SHARE-Fi calculator. Frailty was categorized into non-frail, pre-frail, and frailty. However, in multivariate analysis, the categorization was divided into non-frail and pre-frail to frailty. The bivariate chi-square and multivariate logistic regression were used to analyze the relationship between frailty and determinant factors. A p-value lower or equal to 0.05 (p≤0.05) was considered as statistically Table 1 Definition of Frailty Operational Definition Measurement Categorization Frailty A geriatric syndrome, where the elderly experience a state of increased vulnerability related to aging caused by decreased function and reserves in various physiological systems and affects resistance to deal with stressors also increased death vulnerability.9 Instruments: SHARE-Fi, dynamometer Measuring way: -Conducting interviews and checking grip strength with dynamometer -The results of interviews and hand grip strength checks were entered into the SHARE-Fi calculator according to gender to determine the frail status of respondents Bivariate: [0] = Non-frail [1] = Pre-frail [2] = Frailty Multivariate: [0] = Non-frail [1] = Pre-frail and Frailty Frail The predicted D Factor Score of frailty calculator < 6 in female or < 7 in male9 Pre-frail The predicted DFactor Score of frailty calculator 0.32 – 2.13 in female or 1.21 – 3.01 in male9 Althea Medical Journal March 2023 Althea Medical Journal. 2023;10(1) 39Yvonne Suzy Handajani et al.: Low Bone Mineral Density, Sedentary Lifestyle, and Depression as Risk Factors for Frailty Syndrome at a Home Care Facility in West Jakarta, Indonesia significant. This study was approved by the Ethics Committee of the School of Medicine and Health Sciences, Atma Jaya Catholic University of Indonesia with ethical clearance number 21/01/KEP-FKUAJ/2020. Results This study involved 97 home care members aged 60 years and over. Most of the respondents were aged ≥ 65 years, female, and had higher level of education. The respondents were predominantly obese, had osteopenia, were not depressed, and were independent based on functional status, however, had lower physical activity as shown in Table 2. A relationship was found between gender and bone mineral density with frailty (p= 0.018 and p= 0.005, respectively). However, there was no significant association between age, educational level, BMI, disability, depression, and physical activity as shown in Table 3. Further multivariate analysis showed that gender, bone mineral density, depression, and physical activity were related to pre-frailty and frailty and were considered risk factors for frailty, with the strongest association being depression followed by low bone mineral density, as depicted in Table 4. Discussions This study showed that gender and bone mineral density were statistically significant with frailty on bivariate analysis. Further multivariate analysis showed female gender (OR= 3.319; 95% CI 1.045–10.543), low bone mineral density (OR= 4.939; 95% CI 1.516– 16.090), depression (OR= 7.622; 95% CI 1.246–46.621), and low physical activity (OR= 3.639; 95% CI 1.096–12.079) are risk factors for frailty syndrome. Female gender has a significant relationship with frailty.10,11 In addition to gender, low bone mineral density is also related to frailty.12,13 Interestingly, a study in Brazil showed an increase in frailty cases in the low category of PAL.14 In Indonesia, the relationship between depression and frailty has been proven, suggesting depression as a risk factor for frailty.15 In a 2-year cohort study also showed that low physical activity and depression as Table 2 Characteristics of the Elderly at the Home Care Facility Variable n % Age 60–64 years ≥ 65 years 38 59 39.2 60.8 Gender Male Female 27 70 27.8 72.2 Educational level < 9 years ≥ 9 years 26 71 26.8 73.2 BMI Underweight Normal-overweight Obese 3 47 47 3.1 48.5 48.5 Bone mineral density Normal Osteopenia Osteoporosis 11 72 14 11.3 72.4 14.4 Functional status Independent ADL/IADL disable 61 36 62.9 37.1 Depression Not depressed Depressed 86 11 88.7 11.3 Physical activity Active Sedentary 24 73 24.7 75.3 Frailty status Non-frail Pre-frail Frailty 57 34 6 58.8 35.1 6.2 Total 97 100 Note: BMI= Body mass index, ADL= Activity of daily living, IADL= Instrumental activity of daily living Althea Medical Journal. 2023;10(1) 40 risk factors for frailty.16 Other variables such as age, educational level, BMI, and disability do not show significant relationship with frailty. This study recruited a sample from an urban area with middle socioeconomic status, which differentiates this study from another study in Malaysia that recruited a sample in a rural area with a low socioeconomic status.17 The socioeconomic background may cause the discrepancies in results. Previous studies have found a relationship between educational level and frailty.18,19 The difference in the statistical analysis may be caused by the length of the education category. In this study, we used a 9-year cut-off, while other studies used different categories.17 The respondents of this study were able to adapt well to the routines and activities of life so that there was no difference between education less or more than 9 years. A study conducted in China found a relationship between underweight and frailty, but not obesity.20 The association between BMI categories and frailty remains unclear because several studies have obtained different results. Althea Medical Journal March 2023 Table 3 Relationship between Gender and Bone Mineral Density with Frailty Syndrome Characteristics Non-frail Pre-frail Frailty p n % n % n % Age 60–64 years ≥ 65 years 22 35 57.9 59.3 14 20 36.8 33.9 2 4 5.3 6.8 0.927 Gender Male Female 22 35 81.5 50 4 30 14.8 42.9 1 5 3.7 7.1 0.018* Educational level < 9 years ≥ 9 years 12 45 46.2 41.7 11 23 42.3 24.9 3 3 11.5 4.4 0.208 BMI Underweight Normal-Overweight Obese 2 27 28 66.7 57.4 59.6 0 19 15 0 40.4 31.9 1 1 4 33.3 2.1 8.5 0.144 Bone mineral density Normal Osteopenia Osteoporosis 8 47 2 72.7 65.3 14.3 2 21 11 18.2 29.2 78.6 1 4 1 9.1 5.6 7.1 0.005* Functional status Independent ADL/IADL Disable 39 18 63.9 50 19 15 31.1 41.7 3 3 4.9 8.3 0.389 Depression Not depressed Depressed 54 3 62.8 27.3 27 7 31.4 63.6 5 1 5.8 9.1 0.076 Physical activity Active Sedentary 18 39 75 54.3 5 29 20.8 39.7 1 5 4.2 6.8 0.176 Note: *p < 0.05 = statistically significant , BMI= Body mass index, ADL= Activity of daily living, IADL= Instrumental activity of daily living Table 4 Multivariate Logistic Regression Analysis of Frailty and Determinants Factors Frailty p OR 95% CI Lower Upper Age Gender Educational level Body mass index Bone mineral density Functional status Depression Physical activity 0.354 0.042 0.542 0.416 0.008 0.897 0.028 0.035 0.622 3.319 0.703 0.693 4.939 1.071 7.622 3.639 0.228 1.045 0.227 0.286 1.516 0.377 1.246 1.096 1.697 10.543 2.179 1.677 16.090 3.044 46.621 12.079 Althea Medical Journal. 2023;10(1) 41 This may be due to the different methods used to measure body mass index. Central obesity is more related to the incidence of frailty than general obesity measurement.21 This study found no significant relationship between disability and frailty. However, a study in Korea22 and another part of Indonesia23 showed different results from this study. This might be due to differences in research background or setting, as well as the number of participants. Our study recruited respondents in a community-based place, while other studies recruited respondents in a hospital23 or health centers.22 These background dissimilarity might cause differences in the analysis results. In addition, the results of the analysis of the frailty variables may differ because of different research instruments. There are several instruments besides SHARE to assess frail status in individuals, for example the Frailty Index (FI), Fried Criteria, and Frail Score (FS). The limitation of this study is that it is a cross-sectional study that assesses conditions at a point in time. 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