Comparison of prevalence of life style risk factors and 10 year risk of CVD event among rural and tribal population of Kollegal Taluk, Chamrajanagar district, South India

Prevalence of dyslipidemia, hypertension and diabetes among tribal and rural population in a south Indian forested region

While NCDs are in rise globally, tribal and rural populations residing near to reserve forests with limited exposure to modern lifestyles may bear a unique burden. This study investigates the prevalence and risk factors of hypertension, diabetes, and dyslipidemia among these communities. We conducted a cross-sectional study between 2018 and 2020 in the forest-dwelling population of Chamarajanagar, India. Using multistage stratified sampling based on caste and remoteness, we enrolled 608 participants aged over 18 years, including 259 non-tribal and 349 tribal individuals. Data collection includes the administration of STEPS questionnaire and measurement of fasting blood sugar, lipid levels, and blood pressure. The prevalence of diabetes, hypertension, and dyslipidemia were 4.6%, 28.8%, and 85.7%, respectively, among the study population. We also found abnormal levels of low-density lipoprotein (LDL), high-density lipoprotein (HDL), Triglycerides (TGA), Total cholesterol (TC), and very low-density lipoprotein (VLDL)in 4.9%, 82.4%, 22.7%, 5.8%, and 7.4% of participants, respectively. Significant differences were observed in diabetes, LDL abnormality, TGA abnormality, VLDL abnormality, and TC abnormality, but not in hypertension, dyslipidemia, or HDL abnormality, across the Socio Geographic Discrimination Index. We found a significant difference in diabetes and HDL abnormality, but not in hypertension, dyslipidemia, LDL abnormality, TGA abnormality, TC abnormality, or VLDL abnormality, between tribal and non-tribal populations living in the forest-dwelling area. Waist circumference was a significant independent predictor of diabetes among tribal participants, while wealth index, age, and waist circumference were significant predictors of hypertension. There were no significant predictors for dyslipidemia among tribal participants. Our study suggests that tribal population living in a remote area are at a lower risk of developing diabetes compared to non-tribal populations living in the same geographic area. However, the prevalence of hypertension and dyslipidemia among tribal populations remains high and comparable to that of the general population.

Prevalence of Hypertension in Indian Tribal Population: a Systematic Review and Meta-analysis

Hypertension is a serious condition that significantly increases the risks of several cardiovascular diseases. An estimated 1.28 billion adults aged 30-79 years worldwide have hypertension, and two-thirds of them live in low- and middle-income countries. Indigenous (tribal) populations are not exceptional to the threat of hypertension. Hence, there is a need to highlight the rising prevalence of hypertension among Indian tribes and to bring them under health care programmes. This paper reports the systematic review and meta-analysis of the literature on the prevalence of hypertension among Indian tribes by following the PRISMA guidelines. Three databases, viz. PubMed/Medline, Google Scholar and Scopus, were included. The gender-wise pooled prevalences were calculated, and forest plots were depicted. Other analyses were performed, including heterogeneity test, meta-regression and sub-group analysis. Of the 1010 studies obtained, 42 were included in this review. These studies covered tribal populations in different regions of India. The pooled prevalence of hypertension among men, women and combined were 23.66% (95% confidence interval (CI): 23.25 to 24.07%), 23.37% (95% CI: 22.99 to 23.75%) and 16.68% (95% CI: 16.10 to 17.28%) respectively. Considerable heterogeneity was found among these studies. The situation of increasing prevalence, as evident from this review, is worrisome as the hypertension epidemic will affect the poor tribal communities that cannot afford to pay for treatment expenses. Therefore, people's access to public health services must be improved. This review discusses the recent initiatives to reduce the burden of hypertension and other noncommunicable diseases in India and highlights the need of implementation research to strengthen these initiatives.

Prevalence of diabetes mellitus in Indian tribal population: a systematic review and meta-analysis

BACKGROUND

Diabetes mellitus (DM), a significant public health problem across the nations, is among the top ten leading causes of death. More than 370 million indigenous people (referred to as tribal people in India) are spread across 90 countries. India has the largest tribal people of 104 million. Tribal populations are not exceptional to the threat of type 2 DM (T2DM) and other non-communicable diseases, and hence, public health programmes are addressing this problem. This paper reports the systematic review and meta-analysis of the literature on the prevalence of T2DM.

METHODS

We conducted a systematic review and meta-analysis of the literature to understand the prevalence of T2DM among the tribal populations of India, following the guidelines of the PRISMA Statement for Reporting Systematic Reviews and Meta-Analysis. The gender-wise prevalence was recalculated by extracting the data wherever possible. Forest plots were depicted based on the prevalence, and other analyses were performed.

RESULTS

On initial searches from three databases, 5422 citations were identified, and ultimately 27 studies were included in the review. These studies were undertaken amongst different tribes in different parts of India. The pooled prevalence of T2DM among men, women and combined were 6.04% (95% confidence interval (CI): 5.55% to 6.57%), 6.48% (95% CI: 6.01% to 6.99%) and 4.94% (95% CI: 4.72% to 5.17%), respectively. Considerable heterogeneity was found among these studies.

CONCLUSION

This systematic review provides an overview of the prevalence of T2DM among the Indian tribal population. The pooled overall prevalence is slightly lower than the general population. This situation is worrisome as the epidemic of T2DM will affect the poor tribal communities, who can least afford to bear the health care costs. Hence, the public health care services must be strengthened in all tribal areas. This review further warrants establishing surveillance of T2DM in tribal areas.

Prevalence of Traditional Risk Factors in First-Degree Relatives of Patients With Established Cardiovascular Disease

INTRODUCTION

World Health Organization (WHO)/International Society of Hypertension (ISH) risk prediction charts are useful for predicting 10-year combined myocardial infarction and stroke risk (fatal and non-fatal). Hence the current study was conducted to assess the 10-year risk of cardiovascular disease among adults in Ahmedabad, India.

AIMS

The primary aim of the study was to assess the cardiovascular risk among first-degree relatives of patients attending the outpatient clinic. Also, to create awareness regarding assessment of cardiovascular risk among the studied group.

METHODS AND MATERIALS

A cross-sectional study was carried out among 372 first-degree relatives of patients at an out-patient cardiology clinic present in Vadaj, Ahmedabad. The WHO/ISH risk prediction chart for South-East Asia Region D (SEAR D) was used for calculating the 10-year cardiovascular risk.

RESULTS

A maximum (80.10%) of the study participants were in the low-risk (<10%) category followed by 8.33% for moderate-risk (10-20%), 7.25% for moderately high-risk (20-30%), 2.42% for high-risk (30-40%) and 1.88% for very high-risk (>40%).

CONCLUSION

WHO/ISH risk prediction charts provide a quick and effective way to assess and categorize the population in a low-resource setting which in turn helps in delivering focused intervention to the high-risk groups.

Relationship of Noninvasive Assessment of Arterial Stiffness with 10-Year Atherosclerotic Cardiovascular Disease (ASCVD) Risk in a General Middle-Age and Elderly Population

Purpose

As a powerful indicator of arterial stiffening, the brachial-ankle pulse wave velocity (baPWV) has been extensively validated for predicting cardiovascular events. However, whether and how the brachial-ankle pulse wave velocity (baPWV) is correlated with the 10-year atherosclerotic cardiovascular disease (ASCVD) risk is unclear. This study aimed to investigate the association between baPWV and 10-year ASCVD risk in Chinese population.

Methods

A total of 1768 subjects were enrolled from Shanghai, China. They were divided into two groups according to the Pooled Cohorts Equations model made by ACC/AHA as follows: low ASCVD risk (n = 992, 10-year ASCVD risk <7.5%) and high ASCVD risk (n = 776, 10-year ASCVD risk ≥7.5%). The baseline characteristics were obtained via the use of a questionnaire. Measurement of baPWV, laboratory tests, and echocardiography were conducted by trained physicians. The relationship between baPWV and 10-year ASCVD risk was evaluated using multiple logistic regression model and generalized additive model.

Results

The mean age of the subjects was 58.89±8.60 years, 32.69% of which were male. Non-linear relationship analysis revealed threshold effects between baPWV and 10-year ASCVD risk in which a baPWV of approximately 16 m/s might be the threshold effect of 10-year ASCVD risk. After multivariable adjustment, logistic-regression analysis demonstrated that ankle-brachial index (ABI) (OR 5.28, 95% CI 1.20–12.23) and baPWV (OR 9.09, 95% CI 6.84–12.07) were independently correlated with 10-year ASCVD risk. The AUC for baPWV for predicting 10-year ASCVD risk was 0.80 (95% CI 0.78–0.82).

Conclusion

Increased baPWV as an indicator of arterial stiffness correlates strongly with 10-year ASCVD risk in general middle-aged and elderly populations. The association between baPWV and 10-year ASCVD risk is not purely linear but non-linear. Subjects with baPWV above 16 m/s are more likely to encounter a higher 10-year ASCVD risk.

Prevalence of CVD risk factors among some tribal and nontribal populations of Jharkhand - A comparative survey

BACKGROUND

World especially India had been witnessing a sharp increase of death and disability due to cardiovascular disease (CVD). Prevention, cure and management of cardiovascular diseases (CVD) necessitate true picture of the spread of CVD risk factors throughout the country. Among few surveys in India, very little reports were from state Jharkhand. This study aimed to report the status of CVD risk factors among tribal and nontribal population of Jharkhand.

METHODS

Comparative study was conducted on rural tribals and urban nontribals with no apparent CVD related symptoms. Informed consents, filled up CVD risk questionnaire were collected. Anthropometric and behavioral data with measured Blood pressure (BP), blood sugar and body mass index (BMI) were analyzed by multivariate logistic regression to find out the association of inappropriate features related to CVD, if any with age, gender and ethnicity.

RESULTS

Almost 2 fold more susceptibility to develop hypertension, pre-hypertension and obesity was found in nontribals over 8.0%, 15.6% and 22.1% of respective affected tribals. This trend increased up to 3 fold in > 40 years age group. This >40 when compared with < 40 years age group nearly 16 fold and 11 fold significantly increased hypertension risk was reported in nontribals and tribals respectively We report 14.8% diabetic in tribals, highest so far in India.

CONCLUSION

With age above 40 years, susceptibility to different CVD risk factors like hypertension, pre-hypertension, obesity, high MAP reported to increase severely in urban nontribals than rural tribals.