Prevalence of dementia in Colombian populations

Survival outcomes among hospitalized patients with dementia: a propensity score matching analysis

BACKGROUND

Hospitalized patients with dementia exhibit high mortality rates, underscoring the importance of investigating variables associated with reduced survival. This study aims to determine the incidence of dementia among hospitalized patients and survival rates at 1 and 3 years post-hospitalization.

METHODS

A retrospective cohort study was conducted using administrative databases from the Ministry of Health of Colombia. One- and three-year survival rates, along with adjusted hazard ratios for survival accounting for comorbidities included in the Charlson Index, were assessed using a Cox proportional hazards model. This analysis was performed for patients with dementia versus a control group without dementia. Additionally, findings were compared with those from an inverse propensity score weighting model.

RESULTS

6.769 (1.04%) patients were diagnosed with dementia, and 5798 (85.65%) were over 65 years of age. The unadjusted HR, the HR adjusted using the proportional hazards Cox model, and the HR obtained through propensity score matching (PSM) were 10.32 (95% CI 9.82 to 10.84), 1.69 (95% CI 1.60 to 1.78), and 1.32 (95% CI 1.02 to 1.71), respectively. The 1-year adjusted mortality rates for patients with dementia and those without were 12.5% and 1.31%, respectively, while the corresponding 3-year adjusted mortality rates were 21.25% and 2.76%. Through PSM, we determined that the mean survival time for patients with dementia, in comparison to those without, was - 0.98 months (95% CI: -0.65 to -1.94; p < 0.001).

CONCLUSIONS

Dementia significantly reduces survival rates of hospitalized patients, regardless of other comorbidities. Specifically, our research revealed that dementia was associated with a decrease in 3-year survival by an average of 0.98 months.

Stakeholder perceptions of dementia in Colombia: a qualitative study

BACKGROUND

The global rise in dementia prevalence poses a significant public health challenge, particularly in low- and middle-income countries where resources for diagnosis, treatment, and support are constrained. Addressing this issue, the World Health Organization's 2017-2025 global action plan on dementia envisions a future where dementia is preventable, and individuals with dementia and their caregivers receive dignified support.

METHODS

Using a qualitative research design, this study explores stakeholder perspectives on dementia in Colombia, framed by the World Health Organization's global action plan. Semi-structured interviews were conducted with 12 key stakeholders from the academia, government, and the community. Data were analyzed using framework analysis.

RESULTS

The interviews revealed a lack of recognition and prioritization of dementia as a public health concern in Colombia. Stakeholders expressed consensus on several challenges, including inadequate community awareness, persistent stigma, insufficient services across care levels, a lack of education for healthcare professionals, and a deficit in research characterizing the dementia population. Paradoxically, participants noted a positive trend, indicating growing awareness among both scientific and non-scientific populations.

CONCLUSIONS

Dementia must urgently be recognized as a public health priority in Colombia. The identified barriers underscore the struggles faced by individuals with dementia and their families, emphasizing the critical need for increased community and governmental awareness.

Electrophysiological correlates of visual short-term memory binding deficits in community-dwelling seniors at risk of dementia

BACKGROUND

Visual Short-Term Memory Binding (VSTMB) is a preclinical marker of Alzheimer's disease (AD). Reduced early event-related potentials (ERPs) (100-250 ms) over fronto-central (FC) and parieto-occipital (PO) regions have been reported in patients with Mild Cognitive Impairment (MCI) seen in the clinic. We investigated such ERPs in a larger sample of community-dwelling older adults who had not sought medical advice.

METHODS

Participants (n = 215) were assessed with a neuropsychological battery and the VSTMB Task. The latter assessed the ability to detect changes between two consecutive arrays of shapes or colored shapes (the Binding condition). Time-locked EEG signals were collected during the task.

RESULTS

Those who met the MCI criteria (n = 108) showed binding impairment. ERP analyses revealed significant Group x Time Windows interactions. Early ERP showed reduced neural recruitment (MCI < healthy controls (HC)) over the right FC regions, left PO, and right centro-parietal (CP) regions during Binding encoding, and over PO regions bilaterally and left FC during retrieval. Late ERP showed increased neural recruitment (MCI > HC) on left FC and PO regions during retrieval.

CONCLUSIONS

Hyper-recruitment may reflect functional reorganization aimed at behavioral compensation in the early stages of MCI. The role of such amplitude shifts as pointers of transition points in the AD continuum needs further investigation.

Periodontal Indices as Predictors of Cognitive Decline: Insights from the PerioMind Colombia Cohort

Background: Poor oral health and periodontitis have been epidemiologically linked to cognitive decline and mild cognitive impairment (MCI) in older adults. However, specific metrics directly linking these clinical signs are exceedingly limited. Methods: To address this gap and develop novel tools to help clinicians identify individuals at risk of cognitive decline, we established the PerioMind Colombia Cohort, comprising elderly Colombian subjects who underwent comprehensive neurocognitive and periodontal evaluations. Results: The results revealed that subjects diagnosed with MCI exhibited significantly higher scores in specific periodontal indices, including gingival erythema and pocket depth parameters. The predictive model identified positive associations with MCI, with gingival erythema showing the strongest correlation, followed by the presence of periodontitis and variations in pocket depth measurements. Additionally, lower educational attainment was associated with a higher likelihood of being classified in the periodontitis-MCI group. Conclusions: Here, we show that specific altered periodontal metrics are associated with MCI diagnosis, and the generated results provide defined metric ranges for identifying individuals at risk. Upon validation in larger cohorts, the findings reported here could offer dental practitioners and clinicians innovative tools to identify individuals at risk of MCI and age-related dementias through routine oral health assessments, thereby enabling more accessible and highly sought-after early intervention strategies in both developing and developed countries.

Social patterning of cognitive impairment in Colombia: evidence from the SABE 2015 study

INTRODUCTION

Dementia, an increasingly critical public health concern in low and middle-income countries, is associated with lower socioeconomic status, early cognitive impairment, and elevated dementia-related mortality risk. This study seeks to estimate the prevalence of cognitive impairment, investigate its links with social indicators, and visualize social gradients across different regions in Colombia.

METHODS

Secondary data analysis from the SABE 2015 survey, multinomial regression analyses, and equiplot graphs.

RESULTS

A sample of 23,694 individuals 60 years or older from Colombia. Higher risks were observed among individuals with dark skin color (OR 1.27; 95%CI: 1.10 - 1.47), lower educational levels (OR 3.01; 95%CI:2.04 - 4.42) and reading illiteracy (OR 2.14; 95%CI: 1.87 - 2.46). Inequity patterns were identified by region of residence and income.

DISCUSSION

This study underscores the need for targeted interventions aimed at reducing health inequities. The results highlight the higher prevalence rates of cognitive impairment among socially disadvantaged individuals.

Feasibility of a Culture-Based Multicomponent Cognitive Training Program for Older Adults With Dementia

PURPOSE

To understand whether a culture-based multicomponent cognitive training program is feasible and tolerable for persons with dementia (PWD) in day care centers in Taiwan, and to examine the effectiveness of a 16-week program in preventing declines in cognitive function and self-care, as well as the development of depressed mood and behavioral problems.

METHOD

This study was a 4-month cluster randomized controlled trial. PWD (N = 56) who met sample selection criteria were recruited from five day care centers and assigned to the experimental or comparison group. Participants in the experimental group received a series of culture-based multicomponent cognitive training activities via research assistants and day care center caregivers for 16 weeks. Participants in the comparison group received usual daily activities. Time attending activities and degree of participation were used as criteria for determining feasibility and tolerability of the program.

RESULTS

Results confirmed the feasibility of culture-based multicomponent cognitive training activities if the activities were guided by caregivers. Results also showed participants in the experimental group had statistically significant improvements in cognitive function. Activities of daily living performance, depressed mood, and behavioral problems showed non-significant improvements.

CONCLUSION

The current study suggests that this program can assist PWD in preventing declines in self-care and the development of behavioral and psychological problems, and improve their cognitive function. Further research with a larger sample size and staff training should be considered to test the effectiveness of this program. [Research in Gerontological Nursing, 17(5), 257-264.].

Function-Focused Care for Cognitive Impairment Training Among Formal Caregivers in Long-Term Care Facilities in Taiwan: A Cluster Randomized Controlled Trial

PURPOSE

To examine behavior changes among formal caregivers in Taiwanese long-term care facilities (LTCFs) after receiving training in function-focused care for cognitive impairment (FFC-CI).

METHOD

The current study was a clustered randomized controlled trial. Formal caregivers (i.e., RNs and nursing assistants) (N = 98) from four LTCFs were randomly assigned to experimental or control groups. Training was based on four components of FFC-CI. Data were collected four times within 9 months using five observational outcome measurements: Self-Efficacy for Restorative Care (SERCS), Outcome Expectations for Restorative Care Scale (OERCS), Restorative Care Knowledge Scale (RCKS), Restorative Care Behavior Checklist (RCBC), and Job Attitude Scale (JAS).

RESULTS

Statistically significant changes were noted in each activity of restorative care behavior among the four observational measurements. Results also indicated that job satisfaction was a statistically significant main effect for the experimental group; however, SERCS, OERCS, and RCKS scores were not statistically significant.

CONCLUSION

To eliminate gaps between translating research outcomes to clinical practice, this study applied a theory-based caring model for caregivers to improve knowledge and skills in caring for older adults with dementia. Caregivers who received training in FFC-CI not only had higher job satisfaction but could also provide specific FFC activities for residents during their daily care. [Journal of Gerontological Nursing, 50(7), 42-50.].

Evidence of validity and reliability of the Colombian version of Addenbroke's Cognitive Examination Revised (ACE-R)

OBJECTIVE

The purpose of this study is to provide evidence that supports the validity and reliability of the Colombian version of the Addenbrooke's Cognitive Examination Revised (ACE-R) in comparison to the MMSE at assessing and finding patients with Mild Cognitive Impairment (MCI). Additionally, the study aims to determine the optimal cut-off scores based on the age of a population with a low education level.

METHOD

This study included 314 individuals (235 participants diagnosed with MCI and 79 cognitively healthy) who live in two different rural departments (states) in Colombia. The participants were recruited for this study through community clubs for the older adults. Most of the individuals were female (236), the average age was 65.95 years of age (SD= 7.8), and the average education level was of 3.78 years (SD = 1.79). It is important to note that the sample only included people with a maximum of 6 years of schooling.

RESULTS

A ROC analysis indicated that the ACE-R is more effective than the MMSE at evaluating and finding MCI individuals within the three groups. The cut-off points for the Under 60 years of age group was 83.50 (sensitivity 0.880% and specificity 0.632%); 61-69 years of age 80.50 (sensitivity 0.714% and specificity 0.677%); and Over 70 years of age was 79.50 (sensitivity 0.750% and specificity 0.659%). The internal consistency analysis with MacDonald's Ω determined reliability indicators ≥70 in the ACE-R, except for the age range of 61 to 69 years.

CONCLUSION

The Colombian version of the ACE-R demonstrates to be a valid and reliable global cognitive screening tool. It is effective at discerning MCI individuals from healthy within a group of participants with a low education level.

Effect of music care on depression and behavioral problems in elderly people with dementia in Taiwan: a quasi-experimental, longitudinal study

OBJECTIVES

The purpose was to examine the effectiveness of music care on cognitive function, depression, and behavioral problems among elderly people with dementia in long-term care facilities in Taiwan.

METHODS

The study had a quasi-experimental, longitudinal research design and used two groups of subjects. Subjects were not randomly assigned to experimental group (n = 90) or comparison group (n = 56). Based on Bandura's social cognition theory, subjects in the experimental group received Kagayashiki music care (KMC) twice per week for 24 weeks. Subjects in the comparison group were provided with activities as usual.

RESULTS

Results found, using the control score of the Clifton Assessment Procedures for the Elderly Behavior Rating Scale (baseline) and time of attending KMC activities as a covariate, the two groups of subjects had statistically significant differences in the mini-mental state examination (MMSE). Results also showed that, using the control score of the Cornell Scale for Depression in Dementia (baseline) and MMSE (baseline) as a covariate, the two groups of subjects had statistically significant differences in the Clifton Assessment Procedures for the Elderly Behavior Rating Scale.

CONCLUSION

These findings provide information for staff caregivers in long-term care facilities to develop a non-invasive care model for elderly people with dementia to deal with depression, anxiety, and behavioral problems.