Screening for mild cognitive impairment among noncommunicable disease patients attending a rural primary health center in Puducherry, South India

Prevalence of psychiatric morbidity and cognitive impairment among non-communicable disease patients in Southern Chennai, Tamil Nadu

Introduction

According to the WHO, non-communicable diseases cause 71% of all deaths globally. Despite many studies showing a significant association between non-communicable diseases (NCDs) and cognitive decline, it is not researched in Tamil Nadu. Hence, this study was conducted to screen for psychiatric morbidity and cognitive impairment (CI) among NCD patients in Southern Chennai.

Aims

The aim of this study was to estimate the prevalence of psychiatric morbidity and CI and their associated factors among NCD patients attending NCD clinics of tertiary care hospitals.

Methods and Material

A cross-sectional study was carried out in NCD patients (n = 343) attending an NCD clinic in a tertiary care hospital. Basic sociodemographic and clinical details were obtained by a semi-structured questionnaire. Cognition function and psychiatric morbidity were assessed using mini-mental state examination, patient health questionnaire 9 and generalised anxiety disorder 7 tools, respectively.

Results

The mean age of the study participants was 58 years. Of 343 participants, 19.2% had severe CI, 26.8% had severe depression, and 29.7% had severe anxiety. Among 180 participants aged 59-86 years, 25.5% participants had osteoarthritis; of these, 41.3% had severe CI (P < 0.0001), 82.6% had severe depression (P < 0.0001) and 63% had severe anxiety (P < 0.027), and their association was statistically significant.

Conclusions

This study concludes that about one-fourth of the NCD patients suffered from CI and psychiatric morbidity, which are of rising concern. Musculoskeletal diseases are neglected to be assessed under NCDs, and in this study, osteoarthritis was found to be significantly associated with depression, anxiety and CI.

Comparison of two screening instruments to detect dementia in Indian elderly subjects in a clinical setting

Objective:

Cognitive screening in elderly patients receiving treatment for chronic medical conditions in a busy outpatient clinical setting is crucial to detect dementia at an earlier stage. Although Hindi Mini-Mental State Examination (HMSE) is an established screening tool for the geriatric population in India, but cannot be administered with the informant. Our study aims to compare two screening instruments, Informant based - Eight-item Interview to Differentiate Aging and Dementia (AD8) and HMSE among elderly patients attending medical outpatient service (OPD) in a tertiary care hospital.

Method:

A total of 776 subjects aged ≥65 years and receiving treatment from medicine OPD in a tertiary care hospital were screened for dementia using AD8 and HMSE. The clinical diagnosis was established after detailed clinical assessment using ICD-10 criterion. Sensitivity and specificity were calculated for both screening tools and ROC curves were plotted considering ICD-10 diagnosis as the gold standard.

Results:

Comparison of receiver operating characteristic (ROC) curves showed that HMSE (AUC = 0.77) were better than AD8 (AUC = 0.61) in detecting dementia. Although increasing the cut-off value of AD8 from a recommended score of ≥2 to ≥3 improved sensitivity from 35% to 48.9%, high false-positive rate limited its utility as a cognitive screening tool.

Conclusion:

Although AD8 is easy to use and quickly administered with either patient or informant, it does not seem to be a suitable cognitive screening test for Indian elderly with chronic medical disorders. HMSE at a cut-off score of ≤23 is able to find out dementia among geriatric patients in a busy medical setting.

Cognitive Impairment Among Older Adults With Diabetes Mellitus in Puducherry: A Community-Based Cross-Sectional Study

Background Cognitive impairment is a global public health problem in the elderly population. There is increasing evidence that diabetes mellitus predisposes to cognitive impairment. Early diagnosis and management of cognitive impairment can delay the onset of dementia, thereby improving self-care and quality of life of diabetic patients. This study intends to assess cognitive impairment, and the factors influencing cognitive impairment among older adults with diabetes mellitus in Puducherry. Methods A community-based cross-sectional study was conducted in field practice areas of a Government Medical College in Puducherry between April and June 2019. After obtaining ethical approval, 240 registered diabetic patients aged 55 years and above were randomly selected. Data on demographic profile and clinical variables were collected using a semi-structured questionnaire. Cognitive function was assessed using the Hindi Mental State Examination (HMSE) tool, and participants who scored below 26 were considered to have cognitive impairment. Results Among 240 participants, 67.9% were aged 60 years and above, 62.5% were females, and 83.8% were unemployed. The proportion of cognitive impairment among older adults with diabetes was 30.0% (95% confidence interval (CI): 24.5-36.03). The mean ± standard deviation of the HMSE Score was 26.13 ± 3.8, and the median score was 27. Female gender (P= 0.02, adjusted prevalence ratio (aPR) = 5.31, 95% CI: 1.34-21), widowhood status (P= 0.005, aPR= 2.71, 95% CI: 1.34-5.46), illiteracy (P<0.001, aPR= 3.55, 95% CI: 1.78-7.07), and presence of probable symptomatic hypoglycemia (P=0.02, aPR= 2.18, 95% CI: 1.13-4.20) were significant predictors of cognitive impairment in the study population by multivariate analysis. Conclusion Almost one-third of older adults with diabetes were found to be at risk of cognitive impairment. Older diabetic patients with identified risk factors may be prioritized for a screening of cognitive impairment at the primary care level.

Memory complaints at primary care in a middle-income country: clinical and neuropsychological characterization

There are different causes of memory complaints in the elderly, such as subjective cognitive decline (SCD), mild cognitive impairment (MCI) or dementia.

OBJECTIVE

1) To characterize individuals with memory complaints in a mid-sized city in Brazil, through clinical, cognitive and functional assessment; 2) to compare SCD individuals with MCI and dementia patients in terms of clinical and cognitive variables.

METHODS

We consecutively included individuals aged ≥50 years, with memory complaints (spontaneous or inquired). Subjects who scored ≥25 on the Memory Complaint Questionnaire or who had spontaneous memory complaints were selected. Participants underwent a semi-structured interview, the Mini-Mental State Examination, Figure Memory Test for visual episodic memory, Clock Drawing Test, Category Fluency (Animals), Neuropsychiatric Inventory, and functional assessment. Individuals were classified as SCD, MCI or dementia. We did not include individuals with previous diagnosis of dementia.

RESULTS

The final sample consisted of 91 subjects (73.6% women; mean age 67.6±9.8 years): 14.3% had spontaneous complaints and 85.7% had inquired complaints. The most common comorbidities were hypertension (69.2%), diabetes (36.3%), and dyslipidemia (24.2%). Low levels of vitamin B12 and hypothyroidism were found in 26.4 and 16.5%, respectively. Regarding cognitive diagnosis, 16.5% of the sample were classified as SCD, 49.4% as MCI and 34.1% as dementia. MCI and dementia were identified in five (38.5%) and seven (53.4%) patients with spontaneous complaint, respectively.

CONCLUSIONS

MCI and dementia are frequently underdiagnosed. Potential reversible causes of cognitive decline are common. The diagnosis of dementia is highly frequent among individuals with spontaneous memory complaints.

Prevalence of Psychiatric Morbidity and Cognitive Impairment among Patients Attending the Rural Noncommunicable Disease Clinic

Objective  This study aimed to assess the prevalence of cognitive impairment and psychiatric morbidity among the patients attending the rural noncommunicable disease clinic after controlling for various confounders (i.e., psychological morbidity, obesity, gender, level of education, duration of the illness and age).

Materials and Methods  One-hundred twenty-four patients were evaluated on the Hindi Mental State Examination for the cognitive function, Physical Health Questionnaire-9 for depression, and Generalized Anxiety Disorder-7 for anxiety disorders.

Results  About one-fourth (26.6%) of the participants had cognitive impairment. The prevalence of cognitive impairment was more among patients with hypertension (35.5%) as compared with the diabetes mellitus (13.6%) and those with comorbid hypertension and diabetes mellitus (26.6%). About one of the participants had depression (35.5%) and 29% of the patients had anxiety disorder. No significant difference was found in the level of cognitive deficits between those with hypertension and diabetes mellitus, when the confounding factors were not taken into account in the analysis. However, after controlling for psychiatric morbidity, obesity, gender, level of education, duration of the illness and age, those with hypertension were found to have significantly higher level of cognitive impairment compared with those with diabetes mellitus. A higher level of dysfunction was seen in the domains of orientation, registration, attention, recall, language, and visuospatial domains.

Conclusion  Present study suggests that patients of hypertension have higher level of cognitive impairment, when compared with those with diabetes mellitus, even after controlling for various confounders. Lack of difference between the two groups can be accounted by the confounding variables.

Screening for cognitive impairment among the elderly attending the noncommunicable diseases clinics in a rural area of Punjab, North India

BACKGROUND

Amongst all the ailments among the elderly persons, cognitive impairment has significant impact on the quality of life. Non-communicable diseases (NCDs) like diabetes and hypertension increase the risk of cognitive impairment and dementia. Little is known about the prevalence and correlates of cognitive impairment in elderly with NCDs.

AIM

The present study aimed to evaluate the prevalence and correlates of cognitive impairment among elderly patients living with NCDs.

METHODOLOGY

297 patients attending the chronic disease clinic of two Community Health Centres were evaluated using Hindi mini-mental scale (HMSE), University of California Los Angeles Loneliness Scale (UCLA LS), Geriatric Depression Scale, Generalized Anxiety Disorder (GAD-7 scale) and Vulnerability to Abuse Screening Scale.

RESULTS

More than one-fourth (27.3 %) of participants had cognitive impairment as per the HMSE scores. The mean HMSE score was lowest (23.90+6.61) among patients with hypertension followed by patients with diabetes alone (26.90+4.46). People with hypertension had lower mean scores on all the domains of HMSE. Multivariable binary logistic regression depicted younger age, high education status, per capita income, long duration of diseases, loneliness, and hypertension emerged as the significant risk factors associated with cognitive impairment.

CONCLUSION

Older adults with non-communicable diseases have high prevalence of cognitive impairment. Physicians should make the patients and their family members aware about the association of non-communicable diseases with cognitive impairments and should encourage these persons to use remedial measures to reduce the risk of future development of dementia.