Disparities in diabetes mellitus among Caribbean populations: a scoping review

Views and experiences of primary care among Black communities in the United Kingdom: a qualitative systematic review

BACKGROUND

In the United Kingdom, people with non-white ethnicities are more likely to report being in worse health conditions and have poorer experiences of healthcare services than white counterparts. The voices of those of Black ethnicities are often merged in literature among other non-white ethnicities. This literature review aims to analyse studies that investigate Black participant experiences of primary care in the UK.

METHODS

We conducted a systematic literature review searching Medline, Web of Science, EMBASE, SCOPUS, Social Policy and Practice, CINAHL plus, Psych INFO and Global Health with specific search terms for appropriate studies. No publish date limit was applied.

RESULTS

40 papers (39 articles and 1 thesis) were deemed eligible for inclusion in the review. A number of major themes emerged. Patient expectations of healthcare and the health seeking behaviour impacted their interactions with health systems in the UK. Both language and finances emerged as barriers through which some Black participants interacted with primary care services. (Mis)trust of clinicians and the health system was a common theme that often negatively impacted views of UK primary care services. The social context of the primary care service and instances of a cultural disconnect also impacted views of primary care services. Some papers detail patients recognising differential treatment based on ethnicity. The review included the voices of primary care professionals where descriptions of Black patients were overwhelmingly negative.

CONCLUSION

Views and experiences of Black groups may be radically different to other ethnic minorities and thus, should be teased out of broader umbrella terms like Black and Asian Minority Ethnic (BAME) and Black Minority Ethnic (BME). To address ethnicity-based health inequalities, culturally sensitive interventions that engage with the impacted community including co-designed interventions should be considered while acknowledging the implications of being racialised as Black in the UK.

Community stressors (violence, victimization, and neighborhood disorder) with cardiometabolic outcomes in urban Jamaica

Background

Despite limited data on neighborhood factors and health risk in Caribbean populations, previous analyses from Jamaica have shown that neighborhood and home disorder were associated with lower physical activity and higher cumulative biological risk among women, while poorer neighborhood infrastructure was associated with higher overweight/obesity among men.

Design

Cross-sectional survey design.

Objectives

In this study, we explored whether community stressors, as measured by community violence, victimization and neighborhood disorder scores, were associated with cardiometabolic outcomes (obesity, diabetes, hypertension and high cholesterol) in urban Jamaican communities. Sex-specific Poisson regression models were used to estimate prevalence ratios (PR) for these associations, adjusting for age, education, diet, physical activity and smoking.

Participants

Of the 849 participants (M = 282; F = 567), mean age was 48 ± 18.5 years and most had at least a high school education. Men were more likely to be current smokers (29.4 vs. 10.6%) and adequately physically active (53.2 vs. 42.0%); more women were obese (46.0 vs. 19.0%), more likely to have hypertension (52.9 vs. 45.4%) and had high cholesterol (34.2 vs. 21.6%) (all p < 0.05).

Results

We observed significant associations only for those in the middle tertile of neighborhood disorder with prevalence of higher cholesterol [PR:1.72 (1.20 to 2.47)] in women and lower prevalence of obesity [PR:0.24 (0.10 to 0.53)] in men.

Conclusion

Results suggest that higher, but not the highest level of neighborhood disorder was associated with higher cholesterol levels in women and lower obesity in men. Future work will explore additional approaches to measuring neighborhood characteristics in Jamaica and the mechanisms that may underlie any relationships that are identified.

Black New Yorkers with Type 2 Diabetes: Afro-Caribbean Immigrants Have Lower BMI and Lower Waist Circumference than African Americans

OBJECTIVE

Using the 2013/2014 New York City (NYC) Health and Nutrition Examination Survey (NYCHANES) data, this exploratory study examined whether (a) type 2 diabetes (diabetes) prevalence differed between NYC Afro-Caribbeans and African Americans; (b) anthropometric, biochemical, and sociodemographic diabetes profiles differed between and within groups; and (c) diabetes odds differed between and within groups.

METHODS

Diabetes was defined as prior diagnosis, HbA1c ≥ 6.5% (7.8 mmol/L), or fasting glucose ≥ 126 mg/dL. Weighted logistic regression estimated diabetes odds by nativity and either waist circumference (WC) (cm) or BMI (kg/m²). All regression models controlled for age, hypertension, gender, education, income, marital status, physical activity, and smoking.

RESULTS

Among Afro-Caribbeans (n = 81, 65% female, age (mean ± SE) 49 ± 2 years, BMI 29.2 ± 0.7 kg/m²) and African Americans (n = 118, 50% female, age 47 ± 2 years, BMI 30.3 ± 0.9 kg/m²), Afro-Caribbeans with diabetes had lower BMI (29.9 ± 0.8 kg/m² vs. 34.6 ± 1.7 kg/m², P = 0.01) and lower WC (102 ± 2 cm vs. 114 ± 3 cm, P = 0.002) than African Americans with diabetes. Afro-Caribbeans with diabetes had lower prevalence of obesity (33.2% vs. 74.7%) and higher prevalence of overweight (57.2% vs. 13.5%) (P = 0.02) than African Americans with diabetes. Odds of diabetes did not differ between Afro-Caribbeans and African Americans. In models predicting the effect of WC, diabetes odds increased with WC (OR = 1.07 (95% CI 1.02, 1.11), P = 0.003) and age (OR = 1.09 (95% CI 1.03-1.15), P = 0.003) for African Americans only. In models predicting the effect of BMI, diabetes odds increased for Afro-Caribbeans with age (OR = 1.06 (1.01, 1.11)*, P = 0.04) and hypertension (OR = 5.62 (95% CI 1.04, 30.42), P = 0.045), whereas for African Americans, only age predicted higher diabetes odds (OR = 1.08 (95% CI 1.03, 1.14), P = 0.003).

CONCLUSIONS

In NYC, Afro-Caribbeans with diabetes have lower BMI and lower WC than African Americans with diabetes, but odds of diabetes do not differ. Combining African-descent populations into one group obscures clinical differences and generalizes diabetes risk.

Diabetes Epidemiology Among Adults in Port-au-Prince, Haiti: A Cross-Sectional Study

Introduction

Diabetes mellitus is a chronic noncommunicable disease associated with death and major disability, with increasing prevalence in low- and middle-income countries. There is limited population-based data about diabetes in Haiti. The objective of this study was to assess the prevalence of diabetes and associated factors among adults in Port-au-Prince, Haiti using a population-based cohort.

Methods

This study analyzes cross-sectional enrollment data from the population-based Haiti Cardiovascular Disease Cohort Study, conducted using multistage sampling with global positioning system waypoints in census blocks in the metropolitan area of Port-au-Prince, Haiti. A total of 3,005 adults ≥18 years old were enrolled from March 2019 to August 2021. We collected socio-demographic data, health-related behaviors, and clinical data using standardized questionnaires. Diabetes was defined as any of the following criteria: enrollment fasting glucose value ≥ 126 mg/dL or non-fasting glucose ≥ 200 mg/dL, patient self-report of taking diabetes medications, or study physician diagnosis of diabetes based on clinical evaluation.

Results

Among 2985 (99.3%) with complete diabetes data, median age was 40 years, 58.1% were female, and 17.2% were obese. The prevalence of diabetes was 5.4% crude, and 5.2% age standardized. In unadjusted analysis, older age, higher body mass index (BMI), low physical activity, low education were associated with a higher odds of diabetes. After multivariable logistic regression, older age [60+ vs 18-29, Odds Ratio (OR)17.7, 95% CI 6.6 to 47.9] and higher BMI (obese vs normal/underweight, OR 2.7, 95% CI 1.7 to 4.4) remained statistically significantly associated with higher odds of diabetes.

Conclusion

The prevalence of diabetes was relatively low among adults in Port-au-Prince, but much higher among certain groups (participants who were older and obese). The Haitian health system should be strengthened to prevent, diagnose, and treat diabetes among high-risk groups.

Glycemic control and management of cardiovascular risk factors among adults with diabetes in the Eastern Caribbean Health Outcomes Research Network (ECHORN) Cohort Study

AIMS

To determine the level of glycemic control and cardiovascular (CVD) risk among adults with diabetes in the Eastern Caribbean.

METHODS

Baseline data from the Eastern Caribbean Health Outcomes Research Network (ECHORN) Cohort Study (ECS) were used for the analysis. ECS participants were 40 years of age and older, residing in the US Virgin Islands, Puerto Rico, Trinidad, or Barbados. Participants completed a survey, physical exam, and laboratory studies. CVD risk was calculated using the Atherosclerotic CVD risk equation. Bivariate analysis followed by multinomial logistic regression was used to assess social and biological factors (education, lifestyle, access to care, medical history) associated with level of glycemic control.

RESULTS

Twenty-three percent of participants with diabetes had an HbA1c ≥ 9% (>75 mmol/mol). Participants with diabetes had poorly controlled CVD risk factors: 70.2% had SBP ≥ 130 mmHg, 52.2% had LDL ≥ 100 mg/dl (2.59 mmol/L), and 73.2% had a 10-year CVD risk of more than 10%. Age and education level were significant, independent predictors of glycemic control.

CONCLUSION

There is a high prevalence of uncontrolled diabetes among adults in ECS. The high burden of elevated CVD risk explains the premature mortality we see in the region. Strategies are needed to improve glycemic control and CVD risk factor management among individuals with diabetes in the Caribbean.

Reclaiming traditional, plant-based, climate-resilient food systems in small islands

Small island developing states face challenges in cultivating healthy food systems and are currently bearing substantial burdens of obesity and type 2 diabetes. Local food production-rooted in collective local and Indigenous traditions, self-sufficiency, and climate-adaptive agricultural practices-has long emphasised a fibre-rich, plant-based diet; however, common histories of dietary colonialism have replaced local, small-scale farming and fisheries with non-nutritive cash crops, intensive livestock operations, and high-quality food exportation. Along with declines in traditional food availability, the resulting food import dependence has fostered a diabetogenic ecosystem composed of energy-dense cereal products, animal-based fats, and processed foods. The destabilisation of local food sectors undermines small island social and cultural systems, contributes to impoverishment and food insecurity during natural disasters, and, ultimately, can reduce diet quality and increase type 2 diabetes risk. Despite ongoing marginalisation of traditional local food systems, locally produced foods such as starchy roots, legumes, fruits, and seafood persist as nutritious and ecologically relevant cornerstones of self-determined local economic productivity and dietary health. Findings from community and epidemiological work suggest that local food production-bolstered by local and Indigenous agroecological knowledge, cultural preservation, and collective agency-can aid in reclaiming healthy and climate-resilient small island food systems.

Oleic Acid and Succinic Acid Synergistically Mitigate Symptoms of Type 2 Diabetes in Streptozotocin-Induced Diabetic Rats

Succinic acid (SA) and oleic acid (OA) are the primary hypoglycaemic agents in Desmodium canum, a plant traditionally employed for its potential health benefits. The synergy of the two organic acids exhibits potency in retarding blood glucose levels (BGL) in euglycaemic Sprague Dawley (S-D) rats following a single-dose administration. A cocktail of the two compounds is being investigated for its antidiabetic properties in fructose-fed streptozotocin (STZ)-induced diabetic rats. Eighteen type 2 diabetic S-D rats were divided into 3 groups and treated for 28 d with either the cocktail (OA + SA, 800 mg/kg body weight [BW]), glibenclamide (10 mg/kg BW), or vehicle (10% polysorbate 20). Another 12 S-D rats served as euglycaemic animals and were divided into two groups, fed either the cocktail (OA + SA, 800 mg/kg BW) or vehicle. Changes in BW, blood pressure (BP), BGL, water and food consumption, serum insulin, serum glucagon and insulin resistance (IR) were monitored. Treatment with the cocktail showed no change in euglycaemic animals; however, there was a significant reduction in the BGL of diabetic treated animals when compared with diabetic control (14.48 ± 1.92 vs. 25.56 ± 1.38 mM; p=0.012). Quantitative insulin sensitivity check index (QUICKI) and glucose/insulin (G/I) scores for IR indicated an improvement in insulin response in the diabetic treated animals. Additionally, there was a noticeable reduction in food and water consumption when compared with diabetic control animals, which was accompanied by a reduction in weight. Overall, the cocktail elicited antidiabetic properties and may serve an important therapeutic role as a nutritional supplement in type 2 diabetics.

Heterogeneity in the guidelines for the management of diabetic foot disease in the Caribbean

The prevalence of diabetes mellitus, diabetic foot (DF) disease and, as a result, lower extremity amputation rates remain high in the Caribbean. This study was undertaken to determine whether Caribbean countries have designated individuals that monitor DF disease and whether there are DF protocols consistent with the International Working Group on the Diabetic Foot (IWGDF) guidance documents. Relevant DF health care personnel(s) from the CARICOM and Dutch Caribbean countries were called or sent questionnaires regarding the presence of structured programs to monitor and manage DF problems in the population. All 25 countries (100%) responded. 81% of respondents could not identify any Ministry, Hospital or individual initiatives that monitored the DF. Only 9 (36%) countries had any guidelines in place. Only 3 countries with guidelines in place utilized IWGDF guidelines. Only 6 (24%) countries had podiatrists and 10 (40%) had vascular surgery availability. 7 (28%) countries had the components for a multidisciplinary team. The presence or the appointment of a designated individual and/or a multidisciplinary approach within the countries for DF disease was absent in the majority of respondent countries. Only a minority of countries implemented DF guidelines or had expertise available to organize a DF multidisciplinary team. Vascular surgery and podiatric care were noticeably deficient. These may be critical factors in the variability and reduced success in implementation of strategies for managing DF problems and subsequent amputations amongst these Caribbean countries.

Major Lower Limb Amputations: Recognizing Pitfalls

Major lower extremity amputations have been an area of much concern in the Caribbean population. Hence, the purpose of this research was to investigate the current trends in major lower-extremity amputations. Data regarding all major lower-extremity amputations performed at a tertiary care institution in Trinidad and Tobago, from January 2010 to December 2016 were reviewed. The variation of yearly trends, gender, type of amputation and reason for amputation were analysed. The yearly amputation rate demonstrated a progressive increase from 2010 to 2016, the average for the seven years was 28 per 105/year. Males accounted for 59% of cases, and 60% of amputations were done above the level of the knee joint. The most common reason for amputation was control of sepsis in 71.5% of cases. A strong association between major amputations and prior intervention for a foot-related problem was observed, as 52% of the sample had a pre-existing wound or a prior minor amputation (32%). Overall, 14.5% of all amputees were able to acquire a prosthesis. Diabetes mellitus was the most consistently associated co-morbidity occurring in 91% of the study population. Major limb amputations continue to affect our population significantly, with a rise in the amputation rate despite the introduction of a Vascular Surgical Unit. Diabetes and its foot-related complications are one of the leading causes of major lower extremity amputations. Prosthetic limb acquisition for our amputee population continues to be lacking, reflected by the low prosthetic acquisition rate observed.

Knowledge, Practice and Attitude towards Foot Ulcers and Foot Care among Adults Living with Diabetes in Tobago: A Qualitative Study

Globally, the prevalence of diabetes has risen significantly by 62% over the last ten years. A complication of unmanaged diabetes is diabetic foot ulcer (DFU), which adversely affects the quality of life of individuals with diabetes and inflicts a huge economic burden on the family, government, and health care services. However, this complication is preventable with adequate patient knowledge and practice regarding DFU and foot care. The present study was aimed at assessing the knowledge, attitude, and practice of adults with diabetes on foot ulcers and foot care in Tobago using a qualitative exploratory design. Purposeful sampling technique was used to recruit 20 participants from the lifestyle and diabetes foot clinics of Scarborough Health Centre, Tobago. Telephone interviews were conducted with the use of a semi-structured interview guide. The data obtained from participants were analyzed using thematic content analysis. Four major themes, namely foot ulcer problems, participants’ knowledge on DFU, knowledge on foot care, and practice and attitude of foot care, emerged from the study. The findings from the study revealed that the majority of participants had poor knowledge regarding DFU but exhibited awareness about foot care, especially on foot cleaning and inspection, preventing irritation after washing, appropriate footwear, and not walking barefooted. The participants had good attitudes and practices of foot care despite their poor knowledge of DFU. However, participants reported inadequate health education on DFU and foot care from healthcare personnel. There should be improved health education, information, and communication on DFU and foot care centred and tailored to the understanding of people living with diabetes. This will prevent DFU and reduce the mortality arising from this complication, which is a major target of the sustainable development goals (SDG) in mitigating the burden of non-communicable diseases (NCD) such as diabetes.

Barriers and facilitators to type 2 diabetes management in the Caribbean region: a qualitative systematic review

OBJECTIVE

The objective of this systematic review was to summarize the barriers and facilitators to type 2 diabetes mellitus management in the Caribbean region.

INTRODUCTION

The prevalence of type 2 diabetes mellitus in the Caribbean is of significant concern. Poor management of type 2 diabetes mellitus increases the risks of complications and death. Several studies have been conducted to explore the barriers and facilitators to type 2 diabetes mellitus management in the Caribbean; however, a systematic review has yet to be conducted.

INCLUSION CRITERIA

Eligible participants were adults (aged 18 and above) with type 2 diabetes mellitus, their families/carers, and health care professionals whose work involves the management of type 2 diabetes mellitus in the Caribbean. The review included studies that focused on their views, experiences, attitudes, understandings, perceptions, and perspectives regarding the barriers and facilitators to type 2 diabetes mellitus management.

METHODS

Electronic searches of MEDLINE, Embase, CINAHL/BNI (EBSCOhost), PsycINFO, AMED, Web of Science, and Scopus were conducted from database inception to March 2020. Additionally, gray literature was searched via EThOS, OpenGrey, and ProQuest Dissertations and Theses. JBI methodology for conducting qualitative systematic reviews was followed. Screening of studies, assessment of methodological quality, and data extraction were conducted independently by two reviewers. Findings from studies were synthesized using a meta-aggregation approach, and confidence in the findings was ranked using the ConQual approach.

RESULTS

Eight studies were included in the review, all of which focused on patients' perspectives. There were five synthesized findings, including i) cultural demands and pressures impact self-management and general care of type 2 diabetes mellitus (low confidence evidence); ii) support systems' influence on the general management of type 2 diabetes mellitus (moderate confidence evidence); iii) personal and environmental background/circumstances can encourage and limit good self-management and general management of type 2 diabetes mellitus (high confidence evidence); iv) psychological factors that influence patients' actions towards the management of type 2 diabetes mellitus (moderate confidence evidence); and v) psychological factors and their influence on patients' adherence to type 2 diabetes mellitus management (low confidence evidence).

CONCLUSIONS

Patients in the Caribbean have multiple barriers and facilitators that limit and promote effective management of their type 2 diabetes mellitus. Identifying the barriers and facilitators to type 2 diabetes mellitus management in the Caribbean will assist with development of effective type 2 diabetes mellitus management programs. However, further qualitative studies on barriers and facilitators to type 2 diabetes mellitus management in the Caribbean that target health care professionals and families/carers should be conducted.

SYSTEMATIC REVIEW REGISTRATION NUMBER

PROSPERO CRD42018097242.

Review: Type 2 diabetes in Latin America and the Caribbean: Regional and country comparison on prevalence, trends, costs and expanded prevention

PURPOSE

To present an overview of type 2 diabetes status in Latin America and the Caribbean region.

METHODS

The data were collected from the International Diabetes Federation Atlas and other available published sources where we identified the prevalence in Latin America and the Caribbean, the trends by regions, and sex. Also, we summarized the type 2 diabetes direct and indirect costs, and the current preventative programs and policies available for each region.

RESULTS

Latin America and the Caribbean has one of the fastest-growing prevalence of type 2 diabetes, in particular the Caribbean region. Costs are relatively high in Central American countries and the Caribbean Islands. Currently, type 2 diabetes prevention, diagnosis, and management are insufficient in Latin America and the Caribbean and they do not offer a multidisciplinary integrative approach.

CONCLUSION

Effective and preventive multidisciplinary policies should be implemented in Latin America and the Caribbean to decrease the high burden of type 2 diabetes.

Culturally Sensitive Health Education in the Caribbean Diaspora: A Scoping Review

Context: The Caribbean diaspora in the United States is a diverse community that is afflicted with high morbidity and mortality due to preventable chronic diseases. Objective: Our goal is to determine which culturally sensitive health and nutrition educational modalities have the highest efficacy for improving general health in the Caribbean diaspora. Methods: A scoping literature review was performed on the MEDLINE, CINAHL, and Web of Science databases using terms related to health and nutrition in the Caribbean population. Original, peer-reviewed research published from 2010 to 2020, which took place in the U.S. and Caribbean countries, were included in our review. Results: We identified a total of nine articles that met our inclusion criteria. Rate differences for individual education program features were calculated to assess the likelihood of a positive impact on diet, physical activity, and diabetes. Conclusion: Our review helps to identify key educational modalities targeting diabetes, diet, and physical activity levels that can be used to meet the health and nutritional needs of the Caribbean diaspora population.

A Protocol for the Study of Polymorphisms and Response to Metformin in Patients with Type 2 Diabetes in Trinidad

Background

Metformin is the drug of first choice in people newly diagnosed with type 2 diabetes. Most patients respond to metformin monotherapy, but many others remain uncontrolled even at maximal doses. Although non-adherence is a major contributor to non-response, genetic polymorphisms of organic cation transporters play an important role in clinical response. We hypothesize that genetic variants are partly responsible for non-response.

Objective

This study aims to determine the allele and genotype frequencies of three single nucleotide polymorphisms (SNPs; ATM rs11212617, SLC22A1 rs594709 and SLC47A1 rs2289669) most commonly associated with failure to respond to metformin.

Setting

Ten primary health care facilities in the North Central Regional Health Authority region of Trinidad.

Patients

The study population will include 216 patients with diabetes adherent to metformin monotherapy for at least three months.

Methods

Following a 12-hour overnight fast, blood samples will be taken to measure fasting insulin and HbA1c. DNA would be isolated and PCR will be used to determine the allele and genotype frequencies of these three SNPs in adherent diabetic patients. DNA samples will be stored for future sequencing of these three genes to determine whether other, possibly novel, mutations are associated with poor metformin response in Trinidad.

Clinical Significance

This study will highlight the prevalence of these polymorphisms in our population. Should an association be found between the polymorphisms tested and glycemic control in adherent patients on metformin monotherapy, this will have implications for further research on medication initiation in newly diagnosed patients with diabetes in Trinidad.

"How am I gonna cope?": Caregivers of adolescents with diabetes in Jamaica

Objective

To determine the challenges, coping strategies and needs of urban and rural Jamaican caregivers of adolescents with diabetes, and suggest ways to assist coping.

Methods

This qualitative study comprised four focus groups (two urban and two rural) with a total of nineteen caregivers of adolescents with diabetes. Thematic analysis was conducted on the data.

Results

The main challenges caregivers faced were keeping their children healthy, managing conflict with their children, and financial concerns. They met these challenges with problem-focused and emotion-focused coping strategies. Caregivers used the problem-focused strategies of vigilance, advocacy, minimising their children’s negative emotions, coercion, education, and seeking support, and the emotion-focused strategies of relying on their identity as parents and turning to their faith. Caregivers wanted assistance acquiring medication and equipment, increased diabetes education, and support groups.

Discussion

More resources should be channelled toward provision of diabetes supplies. Diabetes education is necessary in schools and for the general public. Healthcare practitioners should explore issues beyond diabetes management, such as caregivers’ coping and the caregiver-child relationship. Support groups are needed to facilitate learning. Special attention must be paid to rural areas: rural residents appeared to be in greater need than their urban counterparts.

Type 2 Diabetes Prevalence, Distribution and Risk Factors in St. Kitts and Nevis, West Indies

OBJECTIVES

This study in collaboration with the St. Kitts & Nevis Ministry of Health (MOH) investigated the prevalence of type 2 diabetes and its risk factors, the second leading cause of death in the country.

METHODS

Medical records of patients between the ages of 18 and 75 as of January 1, 2010 treated between January 1, 2010 and December 31, 2015 in the government-funded health centers (HCs) were eligible for inclusion (N = 2737). All HC visits (n = 4169) generated by a representative sample of patients (n = 761) were evaluated using Caribbean Public Health Association Public Health Association (CARPHA) guidelines for risk ranges.

RESULTS

The prevalence of type 2 diabetes is 23% and is concentrated in the 45-64 year-old cohort. Though women outnumber men 3:1 in the sample, gender-prevalence rates are similar (23% and 22% respectively). There is also evidence that comorbidities are prevalent among diabetics (76%) and many nondiabetics are at risk of diabetes (20%).

CONCLUSION

This study confirmed the MOH's concerns that type 2 diabetes presents local risk and brings into question historic assumptions that women are at greater risk of diabetes than men.

Serum Vitamin D and Age-Related Muscle Loss in Afro-Caribbean Men: The Importance of Age and Diabetic Status

BACKGROUND

Prospective studies examining the potential association of vitamin D with age-related muscle loss have shown inconsistent results.

OBJECTIVE

To examine the association between baseline serum 25-hydroxyvitamin D (25(OH)D), 1,25-dihydroxyvitamin D (1,25(OH)2D), and prospective change in lean mass with aging in African ancestry population. We also determined if associations were modulated by age and diabetes mellitus (DM).

DESIGN

Prospective observational cohort study.

SETTING

Data were collected from a random sub-sample of 574 men, participants of the Tobago Bone Health Study (TBHS).

PARTICIPANTS

574 Afro-Caribbean men, aged 43+ years (mean age: 59.1 ± 10.5), who were randomly selected as the participants in both the baseline and the follow-up visits.

MEASUREMENTS

Baseline fasting serum 25(OH)D was measured using liquid chromatography mass spectrometry (LC-MS/MS), and and 1,25(OH)2D was measured using radioimmunosassay (RIA). Changes in dual-energy X-ray absorptiometry (DXA)-measured appendicular lean mass (ALM), and total body lean mass (TBLM) were measured over an average of 6.0 ± 0.5 years. The associations of 25(OH)D and 1,25(OH)2D with ALM and TBLM were assessed by multiple linear regression model after adjusting for potential confounders.

RESULTS

When stratifying all men into two groups by age, greater baseline 25(OH)D and 1,25(OH)2D levels were associated with smaller losses of ALM and TBLM in older (age 60+ years) but not in younger (age 43 - 59 years) men. When stratifying by DM status, the associations of 25(OH)D and 1,25(OH)2D with declines in ALM and TBLM were statistically significant only in prediabetic, but not among normal glycemic or diabetic men.

CONCLUSION

Higher endogenous vitamin D concentrations are associated with less lean mass loss with aging among older and prediabetic Afro-Caribbean men independent of potential confounders. Our findings raise a possibility that maintaining high serum vitamin D level might be important for musculoskeletal health in elderly and prediabetic African ancestry men.

Caribbean “substitution culture” is a barrier to effective treatment of persons with diabetic foot infections

Diabetes-related amputation rates are high in the Caribbean. Many authorities have identified independent risk factors for diabetes-related amputations, but cultural factors remain underappreciated. We coined the term “Caribbean substitution culture” to describe the attitude of patients with diabetic foot infections in which they refuse to access medical care, instead voluntarily choosing to substitute “bush medicines” or other alternative therapies in the place of conventional treatment. Recognizing that the Caribbean substitution culture is a barrier to effective treatment of diabetic foot infections is the first step in curbing these practices. In this paper, we discuss the issues related to the Caribbean substitution culture, including the demographics of the population at risk, the alternative therapeutic practices and potential public health strategies to combat this practice.

Foreign-Born Blacks Experience Lower Odds of Obesity but Higher Odds of Diabetes than US-Born Blacks in New York City

Research is limited on the health of foreign-born Blacks (FBBs), who are often grouped with African Americans. This study compared obesity and diabetes odds in FBBs and US-born Blacks (USBBs) in NYC. Analyzing the 2009-2013 NYC Community Health Survey (3701 FBBs and 6297 USBBs), weighted multivariate logistic regression examined odds of obesity and diabetes, adjusting for age, gender, education, income, marital status, children < 18, BMI (for diabetes only) and duration of residence. FBBs had lower odds of obesity [OR  0.62 (95% CI 0.54, 0.72)] and greater odds of diabetes [OR 1.24 (95% CI 1.01, 1.52)] compared to USBBs. FBBs had 1.4 times the odds of diabetes at overweight status, compared to USBBs [OR  1.40 (95% CI 1.01, 1.95)]. Living in the US ≥ 10 years was not associated with odds of obesity and diabetes. Future research should seek to uncover unique risk profiles of sub-ethnic groups in the African diaspora.

A study to identify bacteriological profile and other risk factors among diabetic and non-diabetic foot ulcer patients in a Guyanese hospital setting

Diabetic foot infection is a global epidemic and a major public health concern. Development of microbial resistance to many antimicrobial agents in foot ulcer leads to serious complications. Therefore, the study aims to identify the microbiological profile and the potential risk factors among diabetic and non-diabetic foot ulcer patients. A prospective cross sectional study was carried out among 183 ulcer patients from diabetic foot clinic and wound dressing clinic at the public health hospital, Guyana. A total of 254 bacteria were isolated from the study with an average of 1.4 organism per lesion. Gram negative bacteria (63.0%) were prevalent than gram positive bacteria (37.0%) in this study. Among DF patients, Pseudomonas aeruginosa (18.8%) was the most common isolate followed by Escherichia coli (13.9%) among gram negative group. Were as MRSA (12.1%) followed by MSSA (7.9%) dominated among gram positive group in diabetic foot patients. Almost 42.1% (95% CI 34.8-49.6) of the infections were caused by poly-microbial. Interestingly, a stepwise logistic regression model determined increasing age and lack of health education as independent risk factor identified for acquiring an MDR wound infection (OR = 1.1; p ≥ 0.05; 95% CI 1.0-1.1). Mild, moderate and severe infection among MDR and NMDR patients were recorded as 45.3% (95% CI 32.8-58.3), 26.5% (95% CI 16.3-39.1), 28.1% (95% CI 17.6-40.8) and 51.3% (95% CI 41.9-60.5), 32.8% (95% CI 24.4-42.0), 16.0% (95% CI 9.9-23.8). Therefore, it is concluded that there's an urgent need for surveillance of resistant bacteria in diabetic foot infections to reduce the risk of major complications.

Demographic and clinical characteristics of dominican adults admitted to a diabetic foot clinic in the Dominican Republic, 2015

AIM

To identify the demographic and clinical characteristics of Dominican adults admitted to a diabetic foot clinic and compare these characteristics by sex to better characterize and understand the severity of diabetes in the Dominican Republic.

METHODS

We conducted a retrospective medical chart review of Dominican adults admitted to the National Institute of Diabetes, Endocrinology, and Nutrition's (INDEN) diabetic foot clinic between January 1st, 2015 and December 31st, 2015. We generated descriptive statistics and compared results by sex.

RESULTS

We assessed 447 medical charts of patients admitted in 2015. More men visited the clinic than women (65% vs. 35%). The average duration of diabetes was 14.4 ± 8.9 years. Abscess was the most common foot problem (74% in men, 68% in women, p = 0.164). A slightly smaller proportion of men received amputations than women (46% vs. 51%, p = 0.390). Women were older (p < 0.001), less educated (p = 0.004), and less likely to be married (p < 0.001). Women also exhibited higher rates of obesity (p = 0.003), hypertension (p = 0.005), cardiovascular disease (p = 0.011), ischemic foot (p = 0.008), and above the knee amputations (p = 0.002).

CONCLUSION

Implementation of diabetes education programs, introduction of proper foot care, and improved resources for lifestyle management are needed to increase awareness and subsequently decrease diabetes and its negative impact on the health and economy of the Dominican Republic. Our findings suggest that various risk factors and comorbidities important to the development of diabetes may be disproportionately affecting women. Interventions should focus on women and their behaviors that increase risk for diabetes.

The relationship between non-permanent migration and non-communicable chronic disease outcomes for cancer, heart disease and diabetes - a systematic review

BACKGROUND

The relationship between migration and health has primarily focused on permanent migrants, although non-permanent migrants comprise a large proportion of global migrants. Non-permanent migrants may have distinct needs that affect their health outcomes. This systematic review 1) examined the evidence concerning whether non-permanent migrants have different health outcomes than other population groups for non-communicable chronic diseases (NCDs) and 2) sought to describe how non-permanent migration is defined and measured.

METHODS

For this systematic review, we developed a comprehensive search string for terms about non-permanent migration and disease and screening rates for three NCDs (cancer, heart disease, and diabetes) and searched thirteen electronic databases using the search string. Authors reviewed and evaluated articles for full-text review; hand-searched specific journals and grey literature; and scanned reference lists of relevant studies. Authors extracted and assessed data based on standard reporting for epidemiologic studies.

RESULTS

We identified twelve peer-reviewed articles that examined NCD outcomes for non-permanent migrants as compared to other populations. Some studies showed worse or no significant differences in the NCD outcomes for non-permanent migrants compared to other groups. The articles reflected substantial diversity that exists among non-permanent migrants, which ranged from economic migrants to nomadic populations.

CONCLUSION

Non-permanent migrants varied in their NCD outcomes as compared to other groups. Our included studies were heterogenous in their study designs and their definitions and measurement of non-permanent migration, which limited the ability to make conclusive statements about the health of the populations as compared to other populations. More standardization is needed in research to better understand the diversity in these populations and quantify differences in risk factors and disease rates between non-permanent migrants and other groups.

A review on diabetic foot challenges in Guyanese perspective

BACKGROUND

Diabetes mellitus signifies a major public health threat worldwide. Type 2 diabetes has been reported as the fourth leading cause of death and has affected 15.5% of the adult population in Guyana, South America. Diabetes has also led to major lower extremity amputation at the only referral public hospital in Guyana. Diabetic foot and related complications are known to be multifactorial.

CONCLUSION

In this review, we highlight the information on the diabetic foot and related complications with an emphasis on Guyanese background.

Barriers and facilitators to type 2 diabetes management in the Caribbean region: a systematic review protocol

REVIEW OBJECTIVE

The objective of this systematic review is to summarize the barriers and facilitators to type 2 diabetes management in the Caribbean region.

A Review of Diabetes Prediction Equations in African Descent Populations

Background: Predicting undiagnosed diabetes is a critical step toward addressing the diabetes epidemic in populations of African descent worldwide. Objective: To review characteristics of equations developed, tested, or modified to predict diabetes in African descent populations. Methods: Using PubMed, Scopus, and Embase databases, a scoping review yielded 585 research articles. After removal of duplicates (n = 205), 380 articles were reviewed. After title and abstract review 328 articles did not meet inclusion criteria and were excluded. Fifty-two articles were retained. However, full text review revealed that 44 of the 52 articles did not report findings by AROC or C-statistic in African descent populations. Therefore, eight articles remained. Results: The 8 articles reported on a total of 15 prediction equation studies. The prediction equations were of two types. Prevalence prediction equations (n = 9) detected undiagnosed diabetes and were based on non-invasive variables only. Non-invasive variables included demographics, blood pressure and measures of body size. Incidence prediction equations (n = 6) predicted risk of developing diabetes and used either non-invasive variables or both non-invasive and invasive. Invasive variables required blood tests and included fasting glucose, high density lipoprotein-cholesterol (HDL), triglycerides (TG), and A1C. Prevalence prediction studies were conducted in the United States, Africa and Europe. Incidence prediction studies were conducted only in the United States. In all these studies, the performance of diabetes prediction equations was assessed by area under the receiver operator characteristics curve (AROC) or the C-statistic. Therefore, we evaluated the efficacy of these equations based on standard criteria, specifically discrimination by either AROC or C-statistic were defined as: Poor (0.50 - 0.69); Acceptable (0.70 - 0.79); Excellent (0.80 - 0.89); or Outstanding (0.90 - 1.00). Prediction equations based only on non-invasive variables reported to have poor to acceptable detection of diabetes with AROC or C-statistic 0.64 - 0.79. In contrast, prediction equations which were based on both non-invasive and invasive variables had excellent diabetes detection with AROC or C-statistic 0.80 - 0.82. Conclusion: Equations which use a combination of non-invasive and invasive variables appear to be superior in the prediction of diabetes in African descent populations than equations that rely on non-invasive variables alone.

Obesity and the food system transformation in Latin America

The Latin America and the Caribbean (LAC) region faces a major diet-related health problem accompanied by enormous economic and social costs. The shifts in diet are profound: major shifts in intake of less-healthful low-nutrient-density foods and sugary beverages, changes in away-from-home eating and snacking and rapid shifts towards very high levels of overweight and obesity among all ages along with, in some countries, high burdens of stunting. Diet changes have occurred in parallel to, and in two-way causality with, changes in the broad food system - the set of supply chains from farms, through midstream segments of processing, wholesale and logistics, to downstream segments of retail and food service (restaurants and fast food chains). An essential contribution of this piece is to marry and integrate the nutrition transition literature with the literature on the economics of food system transformation. These two literatures and debates have been to date largely 'two ships passing in the night'. This review documents in-depth the recent history of rapid growth and transformation of that broad food system in LAC, with the rapid rise of supermarkets, large processors, fast food chains and food logistics firms. The transformation is the story of a 'double-edged sword', showing its links to various negative diet side trends, e.g. the rise of consumption of fast food and highly processed food, as well as in parallel, to various positive trends, e.g. the reduction of the cost of food, de-seasonalization, increase of convenience of food preparation reducing women's time associated with that and increase of availability of some nutritious foods like meat and dairy. We view the transformation of the food system, as well as certain aspects of diet change linked to long-run changes in employment and demographics (e.g. the quest for convenience), as broad parameters that will endure for the next decades without truly major regulatory and fiscal changes. We then focus in on what are the steps that are being and can be taken to curb the negative effects on diet of these changes. We show that countries in LAC are already among the global leaders in initiating demand-related solutions via taxation and marketing controls. But we also show that this is only a small step forward. To shift LAC's food supply towards prices that incentivize consumption of healthier diets and demand away from the less healthy component is not simple and will not happen immediately. We must be cognizant that ultimately, food industry firms must be incentivized to market the components of healthy diets. This will primarily need to be via selective taxes and subsidies, marketing controls, as well as food quality regulations, consumer education and, in the medium term, consumers' desires to combine healthier foods with their ongoing quest for convenience in the face of busy lives. In the end, the food industry in LAC will orient itself towards profitable solutions, ie those demanded by the broad mass of consumers.

African Americans, African Immigrants, and Afro-Caribbeans Differ in Social Determinants of Hypertension and Diabetes: Evidence from the National Health Interview Survey

In the United States (U.S.), Blacks have higher morbidity and mortality from cardiovascular disease (CVD) than other racial groups. The Black racial group includes African Americans (AAs), African immigrants (AIs), and Afro-Caribbeans (ACs); however, little research examines how social determinants differentially influence CVD risk factors in each ethnic subgroup. We analyzed the 2010-2014 National Health Interview Survey, a cross-sectional, nationally representative survey of non-institutionalized civilians. We included 40,838 Blacks: 36,881 AAs, 1660 AIs, and 2297 ACs. Age- and sex-adjusted hypertension prevalence was 37, 22, and 21% in AAs, ACs, and AIs, respectively. Age- and sex-adjusted diabetes prevalence was 12, 10, and 7% in AAs, ACs, and AIs, respectively. In the multivariable logistic regression analyses, social determinants of hypertension and diabetes differed by ethnicity. Higher income was associated with lower odds of hypertension in AAs (aOR 0.86, 95% CI 0.77-0.96) and ACs (aOR 0.55, 95% CI 0.37-0.83). In AAs, those with some college education (aOR 0.79, 95% CI 0.68-0.92) and college graduates (aOR 0.62, 95% CI 0.53-0.73) had lower odds of hypertension than those with < high school education. In AIs, having health insurance was associated with higher odds of hypertension (aOR 1.59, 95% CI 1.04-2.42) and diabetes (aOR 3.22, 95% CI 1.29-8.04) diagnoses. We observed that the social determinants associated with hypertension and diabetes differed by ethnicity. Socioeconomic factors of health insurance and income were associated with a disparate prevalence of hypertension by ethnic group. Future research among Blacks should stratify by ethnicity to adequately address the contributors to health disparities.

Educational Health Disparities in Cardiovascular Disease Risk Factors: Findings from Jamaica Health and Lifestyle Survey 2007-2008

OBJECTIVES

Socioeconomic disparities in health have emerged as an important area in public health, but studies from Afro-Caribbean populations are uncommon. In this study, we report on educational health disparities in cardiovascular disease (CVD) risk factors (hypertension, diabetes mellitus, hypercholesterolemia, and obesity), among Jamaican adults.

METHODS

We analyzed data from the Jamaica Health and Lifestyle Survey 2007-2008. Trained research staff administered questionnaires and obtained measurements of blood pressure, anthropometrics, glucose and cholesterol. CVD risk factors were defined by internationally accepted cut-points. Educational level was classified as primary or lower, junior secondary, full secondary, and post-secondary. Educational disparities were assessed using age-adjusted or age-specific prevalence ratios and prevalence differences obtained from Poisson regression models. Post-secondary education was used as the reference category for all comparisons. Analyses were weighted for complex survey design to yield nationally representative estimates.

RESULTS

The sample included 678 men and 1,553 women with mean age of 39.4 years. The effect of education on CVD risk factors differed between men and women and by age group among women. Age-adjusted prevalence of diabetes mellitus was higher among men with less education, with prevalence differences ranging from 6.9 to 7.4 percentage points (p < 0.05 for each group). Prevalence ratios for diabetes among men ranged from 3.3 to 3.5 but were not statistically significant. Age-specific prevalence of hypertension was generally higher among the less educated women, with statistically significant prevalence differences ranging from 6.0 to 45.6 percentage points and prevalence ratios ranging from 2.5 to 4.3. Similarly, estimates for obesity and hypercholesterolemia suggested that prevalence was higher among the less educated younger women (25-39 years) and among more educated older women (40-59 and 60-74 years). There were no statistically significant associations for diabetes among women, or for hypertension, high cholesterol, or obesity among men.

CONCLUSION

Educational health disparities were demonstrated for diabetes mellitus among men, and for obesity, hypertension, and hypercholesterolemia among women in Jamaica. Prevalence of diabetes was higher among less educated men, while among younger women the prevalence of hypertension, hypercholesterolemia, and obesity was higher among those with less education.

Body image: a survey of children in Caribbean Bonaire

BACKGROUND

In Bonaire, the prevalence of overweight and obesity is twice as high compared with Northern Europe but similar to other Caribbean Islands and the USA. Having a realistic body image may be an important tool in the battle against childhood obesity. Previous studies have demonstrated associations between having a realistic body image and efforts to control weight. The aim of the study was to explore the body image of children in Bonaire.

METHODS

In a cross-sectional study from March to May 2015 in Bonaire, weight and height were measured in all children aged 10-14 years attending school. Body mass index (kg/m²) was classified according to the International Obesity Task Force. The children were asked about their body image using a validated questionnaire.

RESULTS

Body mass index was measured in 939 of 1029 (91.3%) children aged 10-14 years (51.5% boys) in Bonaire. Of all children, 9.7% was underweight, 57.6% was normal weight, 32.7% was overweight (including obesity) and 11.6% was obese. The question pertaining to body image was completed by 750 of 939 (79.9%) children. Having a realistic perception of body image varied per weight category from 65% in underweight girls to 13% in obese boys. The percentage of obese children who underestimate their weight is high (boys 87%, girls 77%).

CONCLUSIONS

In many children in Caribbean Bonaire, perceived body image is not in agreement with actual weight status. This applies especially to obese children. Disagreement between perceived body image and actual weight status may prevent weight management in overweight children. Future research is needed to elucidate determinants of disagreement between body image and actual weight status.

Disparities in hypertension among black Caribbean populations: a scoping review by the U.S. Caribbean Alliance for Health Disparities Research Group (USCAHDR)

Background

Despite the large body of research on racial/ethnic disparities in health, there are limited data on health disparities in Caribbean-origin populations. This scoping review aimed to analyze and synthesize published and unpublished literature on the disparities in hypertension and its complications among Afro-Caribbean populations.

Methods

A comprehensive protocol, including a thorough search strategy, was developed and used to identify potentially relevant studies. Identified studies were then screened for eligibility using pre-specified inclusion/exclusion criteria. An extraction form was developed to chart data and collate study characteristics including methods and main findings. Charted information was tagged by disparity indicators and thematic analysis performed. Disparity indicators evaluated include ethnicity, sex, socioeconomic status, disability, sexual orientation and geographic location. Gaps in the literature were identified and extrapolated into a gap map.

Results

A total of 455 hypertension related records, published between 1972 and 2012, were identified and screened. Twenty-one studies met inclusion criteria for detailed analysis. The majority of studies were conducted in the United Kingdom and utilized a cross-sectional study design. Overall, studies reported a higher prevalence of hypertension among Caribbean blacks compared to West African blacks and Caucasians. Hypertension and its related complications were highest in persons with low socioeconomic status. Gap analysis showed limited research data reporting hypertension incidence by sex and socioeconomic status. No literature was found on disability status or sexual orientation as it relates to hypertension. Prevalence and morbidity were the most frequently reported outcomes.

Conclusion

The literature on hypertension health disparities in Caribbean origin populations is limited. Future research should address these knowledge gaps and develop approaches to reduce them.

Electronic supplementary material

The online version of this article (doi:10.1186/s12939-015-0229-0) contains supplementary material, which is available to authorized users.