METHOD: A cross-sectional study was conducted among 278 individuals aged 60 years and over living in Jakarta. All participants underwent assessment, including medical history-taking, physical examination and blood tests for the sugar level and lipid profile. Frailty was assessed using the Frailty Instrument for Primary Care of the Survey of Health, Ageing and Retirement in Europe. All data were analysed using the chi-square test and multinomial logistic regression analysis.
RESULTS: The prevalence of pre-frailty and frailty among the older adults was 40.6% and 28.8%, respectively. Female sex, lack of exercise, presence of cardiovascular diseases and high low-density lipoprotein cholesterol (LDL-C) level were associated with pre-frailty and frailty. Education for <9 years was associated only with frailty. After adjustments for all covariates, female sex (adjusted odds ratio [AOR] = 1.96, 95% confidence interval [CI]=1.07-3.60; AOR=3.93, 95% CI=1.87-8.24), lack of exercise (AOR=l4.81, 95% CI=5.07-43.26; AOR=49.48, 95% CI=16.20-151.09) and presence of cardiovascular diseases (AOR=5.32, 95% CI= 1.40-19.20; AOR=6.06, 95% CI= 1.63-22.56) were associated with pre-frailty and frailty. Meanwhile, education for <9 years (AO R= 1.97, 95% CI=1.05-3.69) and high LDL-C level (AOR=3.52, 95% CI=1.14-10.88) were associated with frailty.
CONCLUSION: Exercise, early screening and intervention for cardiovascular diseases and maintenance of lower LDL-C levels may prevent and slow the progression of frailty.
METHODS: We combined individual participant data for 16 cohorts from 15 countries (members of the COSMIC consortium) and used qualitative and quantitative (Item Response Theory/IRT) harmonization techniques to estimate SCD prevalence.
RESULTS: The sample comprised 39,387 cognitively unimpaired individuals above age 60. The prevalence of SCD across studies was around one quarter with both qualitative harmonization/QH (23.8%, 95%CI = 23.3-24.4%) and IRT (25.6%, 95%CI = 25.1-26.1%); however, prevalence estimates varied largely between studies (QH 6.1%, 95%CI = 5.1-7.0%, to 52.7%, 95%CI = 47.4-58.0%; IRT: 7.8%, 95%CI = 6.8-8.9%, to 52.7%, 95%CI = 47.4-58.0%). Across studies, SCD prevalence was higher in men than women, in lower levels of education, in Asian and Black African people compared to White people, in lower- and middle-income countries compared to high-income countries, and in studies conducted in later decades.
CONCLUSIONS: SCD is frequent in old age. Having a quarter of older individuals with SCD warrants further investigation of its significance, as a risk stage for AD and other dementias, and of ways to help individuals with SCD who seek medical advice. Moreover, a standardized instrument to measure SCD is needed to overcome the measurement variability currently dominant in the field.