Cardiovascular Risk Factor Variables Research Articles

Relationship Among Adherence to the Mediterranean Diet and Anthropometric and Metabolic Parameters in Subjects with Obesity.

There is moderate-to-high evidence that the Mediterranean diet prevents increases in body weight and waist circumference in non-obese individuals, but less is known about its effects in overweight and obese subjects. The present study was focused on exploring the cross-sectional association among the adherence to a Mediterranean diet and the most commonly used variables of metabolic and cardiovascular risk factors in a cohort of overweight subjects from a typical Mediterranean region, Apulia, in Southern Italy. The study was performed in a cohort of 1214 individuals, all overweight or obese but with no other clinical condition. We investigated the association with adherence to a Mediterranean diet, assessed using the PREDIMED score, and anthropometric parameters [namely body mass index (BMI), WC, waist to height ratio (WHtR) and neck circumference (NC)], fasting serum levels of glucose, insulin, uric acid and lipids (triglycerides, total cholesterol, HDL cholesterol, and LDL cholesterol), and blood pressure and insulin resistance, measured by HOMA-IR. The waist to height ratio was negatively associated with a PREDIMED score ≥7 (p<0.04), whereas HDL cholesterol was positively associated with a PREDIMED score ≥7 (p<0.04). This study suggests that body fat distribution and HDL-cholesterol are the parameters most strongly influenced by MedDiet in Apulian subjects.

Regional variations in cardiovascular risk factors and access to care among US veterans with cardiovascular disease.

It remains unclear whether cardiovascular risk factors and access to healthcare for veterans with cardiovascular disease (CVD) vary among US regions. This study sought to determine the extent of regional variations in cardiovascular risk factors and access to medical care in a cohort of veterans with CVD in the USA. The 2016 Centers for Disease Control Behavioral Risk Factor Surveillance Survey was utilized to identify a cohort of veteran patients with CVD. Participants were classified based on four US regions: (1) Northeast, (2) Midwest, (3) South, and (4) West. We compared demographic data, medical history, and access to care for veterans of each US region. The outcomes of interest included financial barriers to medical care and annual medical checkup. Among the 13 835 veterans, 18.3% were from the Northeast, while 23.5, 37.1, and 21.1% were from the Midwest, South, and West, respectively. Veterans of each region differed significantly with respect to demographic characteristics, prior medical history, and access to care. Rates of financial barriers to medical care were similar across the four regions (7.3 vs. 7.1 vs. 8.0 vs. 6.9%, P = 0.203). Veterans from the West had the lowest rates of medical checkup within the past year (91.7 vs. 89.5 vs. 91.4 vs. 86.6%). On multivariate analysis, the Midwest [odds ratio (OR) 0.69; 95% CI, 0.53-0.89] and West (OR 0.53; 95% CI 0.41-0.68) regions were independently associated with lower rates of medical checkup within the past year compared to the Northeast. In this observational study involving US veterans with CVD, cardiovascular risk factors and frequency of annual medical checkup differed amongst each US region. Further large-scale studies examining the prevalence of impaired access to care and quality of care in US veterans with CVD are warranted.

Explaining the variability in cardiovascular risk factors among First Nations communities in Canada: a population-based study

Historical, colonial, and racist policies continue to influence the health of Indigenous people, and they continue to have higher rates of chronic diseases and reduced life expectancy compared with non-Indigenous people. We determined factors accounting for variations in cardiovascular risk factors among First Nations communities in Canada. Men and women (n=1302) aged 18 years or older from eight First Nations communities participated in a population-based study. Questionnaires, physical measures, blood samples, MRI of preclinical vascular disease, and community audits were collected. In this cross-sectional analysis, the main outcome was the INTERHEART risk score, a measure of cardiovascular risk factor burden. A multivariable model was developed to explain the variations in INTERHEART risk score among communities. The secondary outcome was MRI-detected carotid wall volume, a measure of subclinical atherosclerosis. The mean INTERHEART risk score of all communities was 17·2 (SE 0·2), and more than 85% of individuals had a risk score in the moderate to high risk range. Subclinical atherosclerosis increased significantly across risk score categories (p<0·0001). Socioeconomic advantage (-1·4 score, 95% CI -2·5 to -0·3; p=0·01), trust between neighbours (-0·7, -1·2 to -0·3; p=0·003), higher education level (-1·9, -2·9 to -0·8, p<0·001), and higher social support (-1·1, -2·0 to -0·2; p=0·02) were independently associated with a lower INTERHEART risk score; difficulty accessing routine health care (2·2, 0·3 to 4·1, p=0·02), taking prescription medication (3·5, 2·8 to 4·3; p<0·001), and inability to afford prescription medications (1·5, 0·5 to 2·6; p=0·003) were associated with a higher INTERHEART risk score. Collectively, these factors explained 28% variation in the cardiac risk score among communities. Communities with higher socioeconomic advantage and greater trust, and individuals with higher education and social support, had a lower INTERHEART risk score. Communities with difficulty accessing health care, and individuals taking or unable to afford prescription medications, had a higher INTERHEART risk score. Cardiac risk factors are lower in communities with high socioeconomic advantage, greater trust, social support and educational opportunities, and higher where it is difficult to access health care or afford prescription medications. Strategies to optimise the protective factors and reduce barriers to health care in First Nations communities might contribute to improved health and wellbeing. Heart and Stroke Foundation of Canada, Canadian Partnership Against Cancer, Canadian Institutes for Health Research.

Health Impact of Local Interventions

TPS 641: Policies, interventions, communication, Exhibition Hall, Ground floor, August 28, 2019, 3:00 PM - 4:30 PM Background: Air quality in the United States has improved since the Clean Air Act of 1970, but these improvements have varied greatly both between and within metropolitan areas. Methods: We examined local variations in annual average air quality as determinants of local variation in annual age-adjusted cardiovascular hospital admission rates (CHR) among Medicare beneficiaries aged 65 years and older for 2002-2013 across 10,097 ZIP codes (postal codes) in 123 metropolitan core-based statistical areas (CBSA) with 2010 populations greater than 500,000 persons. For 11 air pollutants, we examined local variations (ZIP code-specific variation within CBSA) in CHR and air quality for centered means (2005) and for 12-year trends (2002-2013). Results: Interquartile increments in the centered means of fine particulate matter components were associated with increased CHR (admissions per 100,000 person-years at risk): total PM2.5 (35.0, 95% confidence interval (CI) 5.3, 64.8), elemental carbon (39.3, 95% CI 9.6, 69.1) and organic carbon (33.1, 95% CI 0.9, 65.3). After further adjustment for centered mean CHR to control for ZIP code-level variations in cardiovascular risk factors, interquartile increments in the 12-year trends of gaseous air pollutants were associated with 12-year trends in CHR (annual change in admissions per 100,000 person-years at risk): nitric oxide (4.4, 95% CI 1.8, 7.1), nitrogen dioxide (4.8, 95% CI 2.0, 7.5), and carbon monoxide (4.7, 95% CI 2.0, 7.4). Conclusion: Thus, after adjustment for metropolitan area characteristics and for local variations in cardiovascular risk factors, we have shown that local improvements in air quality lead to local improvements in cardiovascular health among Medicare beneficiaries. The views expressed in this presentation are those of the authors and do not necessarily represent the views or policies of the U.S. Environmental Protection Agency.

복합운동이 비만노인여성의 신체조성 및 심혈관계질환 위험인자에 미치는 영향

The purpose of this study was to investigate the effects of combine exercise on body composition and Cardiovascular risk factors in obese elderly women. Twenty, obese elderly women composed of circulation exercise group(EX, n=10), the control group(CON, n=10). The variables of body composition and Cardiovascular risk factors were measured in all the subjects before the start and after the end of 12 week circulation exercise program(50~60%HRR, 3 times per week, 60 mins).BR The test data were analyzed by paired t-test and repeated measure ANOVA, and the alpha level of p.05 was set for all tests of significance.BR Body composition and Cardiovascular risk factors were measured pre and 12 weeks of post exercise training. Percentage of Body Fat, Total cholesterol, Low-density lipoprotein cholesterol, AI, C-reactive protein was significantly decreased in EX group compared to CON group. Lean Body Mass were significantly increased in EX group compared to CON group.BR These results suggest that 12 weeks of combine exercise improves body composition and Cardiovascular risk factors. Thus, this combine exercise can be a useful therapy to improve body composition and Cardiovascular risk factors in obese elderly women.

Variations in cardiovascular risk factors in people with and without migration background in Germany – Results from the STAAB cohort study

BackgroundAbout 20% of the German population have a migration background which might influence prevalence of preventable cardiovascular risk factors (CVRF). MethodsWe report data of the prospective Characteristics and Course of Heart Failure Stages A-B and Determinants of Progression (STAAB) cohort study investigating a representative sample of inhabitants of the City of Würzburg, Germany, aged 30 to 79 years. Individuals without migration background were defined as follows: German as native language, no other native language, and/or born in Germany. All other participants were defined as individuals with migration background. ResultsOf 2473 subjects (51% female, mean age 54 ± 12 years), 291 (12%) reported a migration background: n = 107 (37%) from a country within the EU, n = 117 (40%) from Russia, and n = 67 (23%) from other countries. Prevalence of hypertension, atherosclerotic disease, and diabetes mellitus was similar in individuals with and without migration background. By contrast, prevalence of obesity and metabolic syndrome was significantly higher in individuals with migration background, with the least favourable profile apparent in individuals from Russia (individuals without vs. with migration background: obesity 19 vs. 24%, p < 0.05; odds ratio: EU: 1.6, Russia: 2.2*, other countries: 0.6; metabolic syndrome 18 vs. 21%, p < 0.05; odds ratio: EU: 1.2, Russia: 1.7*, other countries: 1.5; *p < 0.05). ConclusionIndividuals with migration background in Germany might exhibit a higher CVRF burden due to a higher prevalence of obesity and metabolic syndrome. Strategies for primary prevention of heart failure may benefit from deliberately considering the migration background.

Circulating level of fibroblast growth factor 21 is independently associated with the risks of unstable angina pectoris.

There is increasing evidence that serum adipokine levels are associated with higher risks of cardiovascular diseases. As an important adipokine, fibroblast growth factor 21 (FGF21) has been demonstrated to be associated with atherosclerosis and coronary artery disease (CAD). However, circulating level of FGF21 in patients with angina pectoris has not yet been investigated. Circulating FGF21 level was examined in 197 patients with stable angina pectoris (SAP, n=66), unstable angina pectoris (UAP, n=76), and control subjects (n=55) along with clinical variables of cardiovascular risk factors. Serum FGF21 concentrations on admission were significantly increased more in patients with UAP than those with SAP (Ln-FGF21: 5.26 ± 0.87 compared with 4.85 ± 0.77, P<0.05) and control subjects (natural logarithm (Ln)-FGF21: 5.26 ± 0.87 compared with 4.54 ± 0.72, P<0.01). The correlation analysis revealed that serum FGF21 concentration was positively correlated with the levels of cardiac troponin I (cTnI) (r2 = 0.026, P=0.027) and creatine kinase-MB (CK-MB) (r2 = 0.023, P= 0.04). Furthermore, FGF21 level was identified as an independent factor associated with the risks of UAP (odds ratio (OR): 2.781; 95% CI: 1.476–5.239; P=0.002), after adjusting for gender, age, and body mass index (BMI). However, there were no correlations between serum FGF21 levels and the presence of SAP (OR: 1.248; 95% CI: 0.703–2.215; P=0.448). The present study indicates that FGF21 has a strong correlation and precise predictability for increased risks of UAP, that is independent of traditional risk factors of angina pectoris.

Population-level seasonality in cardiovascular mortality, blood pressure, BMI and inflammatory cells in UK biobank

Introduction: The risk of mortality from cardiovascular disease (CVD) is higher in wintertime throughout the world, but it is not known if this reflects annual changes in diet or lifestyle, or an endogenous photoperiodic mechanism that is sensitive to changes in day length.Methods: Phenotypic data on cardiometabolic and lifestyle factors were collected throughout a 4 year time period from 502,642 middle-aged participants in UK Biobank. To assess the impact of seasonal environmental changes on cardiovascular risk factors, we linked these data to the outdoor temperature and day length at the time of assessment. Self-reported information on physical activity, diet and disease status were used to adjust for confounding factors related to health and lifestyle.Results: Mortality related to CVD was higher in winter, as were risk factors for this condition including blood pressure, markers of inflammation and body mass index (BMI). These seasonal rhythms were significantly related to day length after adjustment for other factors that might affect seasonality including physical activity, diet and outdoor temperature.Conclusions: The risk of CVD may be modulated by day length at temperate latitudes, and the implications of seasonality should be considered in all studies of human cardiometabolic health.Key messagesIn this cross-sectional study in UK Biobank, we report annual variations in cardiovascular risk factors and mortality that were associated with day length independent of environmental and lifestyle factors.These seasonal changes in day length might contribute to annual patterns in cardiovascular disease and mortality.

Economic Impact of Moderate-Vigorous Physical Activity Among Those With and Without Established Cardiovascular Disease: 2012 Medical Expenditure PanelSurvey.

BackgroundPhysical activity (PA) has an established favorable impact on cardiovascular disease (CVD) outcomes and quality of life. In this study, we aimed to estimate the economic effect of moderate‐vigorous PA on medical expenditures and utilization from a nationally representative cohort with and without CVD.Methods and ResultsThe 2012 Medical Expenditure Panel Survey data were analyzed. Our study population was limited to noninstitutionalized US adults ≥18 years of age. Variables of interest included CVD (coronary artery disease, stroke, heart failure, dysrhythmias, or peripheral artery disease) and cardiovascular modifiable risk factors (CRFs; hypertension, diabetes mellitus, hypercholesterolemia, smoking, and/or obesity). Two‐part econometric models were utilized to study cost data; a generalized linear model with gamma distribution and link log was used to assess expenditures per capita. The final study sample included 26 239 surveyed individuals. Overall, 47% engaged in moderate‐vigorous PA ≥30 minutes, ≥5 days/week, translating to 111.5 million adults in the United States stratifying by CVD status; 32% reported moderate‐vigorous PA among those with CVD versus 49% without CVD. Generally, participants reporting moderate‐vigorous PA incurred significantly lower health care expenditures and resource utilization, displaying a step‐wise lower total annual health care expenditure as moving from CVD to non‐CVD (and each CRF category).ConclusionsModerate‐vigorous PA ≥30 minutes, ≥5 days/week is associated with significantly lower health care spending and resource utilization among individuals with and without established CVD.

Adiposity and Cardiovascular Risk Factor Variables in Childhood Are Associated With Premature Death From Coronary Heart Disease in Adults: The Bogalusa Heart Study

BackgroundMore than 600 deaths of all causes have been documented over the 40-year duration of the Bogalusa Heart Study. Of these, 97 deaths have been related to cardiovascular events, based on obituaries published in local newspapers, death certificates obtained from the State Health Department, information from the coroner and word of mouth by nursing staff from the community. MethodsThis study was a retrospective longitudinal cohort with several observations of each subject. It consisted of 6 cross-sectional surveys of children aged 5-7 years, conducted between 1973 and 1988, and 4 cross-sectional surveys of previously examined subjects as young adults extending into middle age, conducted between 1988 and 2010. ResultsExcluding pulmonary, congenital and noncoronary cardiovascular diseases, 46 deaths (average age at death = 44.7 years, range: 31-55) were considered to have been related to coronary artery disease, that is, myocardial infarction. Cardiovascular risk factor observations, gathered from multiple surveys (average of 4.4 surveys, range: 1-14) since childhood, indicated that body fatness and elevated blood pressure beginning in childhood were more common in subjects who later died of coronary artery disease than in living subjects. ConclusionsThe present findings emphasize that sub-clinical cardiovascular disease begins early in life and that early prevention is vital.

EFFECTIVENESS OF A 12 WEEK AEROBIC EXERCISE PROGRAM ON CARDIOVASCULAR RISK FACTORS IN PHYSICALLY INACTIVE AND ABDOMINALLY OBESE POST-MENOPAUSAL SOUTH ASIAN WOMEN

Ethnic variation in cardiovascular risk factors (CRF) has been reported with South Asians having a more deleterious profile than Caucasians. Exercise has been shown to have a positive effect on a number of CRF however, the effectiveness of a supervised aerobic exercise prescription has not been evaluated in post menopausal South Asian women; a sub-group of the South Asian population who are at even greater risk for type 2 diabetes. It is unknown whether a 12 week program of aerobic exercise will alter CRF as seen in Caucasian populations. Seventy-five physically inactive post-menopausal South Asian women were enrolled in the South Asian Exercise Trial and randomized to either a control group who did not alter their physical activity or 36 classes of aerobic exercise over a 12 week period of time consisting of either Bhangra Dance or Standard Aerobic Exercise. Exercise programs were based on standard intensity and volume recommendations proven effective in Caucasians. Aerobic fitness was assessed as maximal time on an exercise stress test using the Bruce Protocol and CRF were assessed by 12 hour fasting blood test. Multiple general linear models were used to assess comparisons between control and exercise. Multiple models were run with the follow up data on the CRF of interest as the dependent variable and the independent variables of the corresponding CRF assessed at baseline as well as physical activity. Participants were 58.0 ± 6.5 years with a waist circumference of 94.1± 8.6 and time to exhaustion on the treadmill was 5.3 ± 1.4 minutes. Participants in the exercise group improved their fitness based on total treadmill time (-0.3 ± 1.1 vs 0.4 ± 1.6, p=0.027) compared to controls. There was a significant difference in parameter estimates of non HDL-C -0.014 (-0.07, <0.01) in control vs. exercise (p<0.05) however, the treatment group did not predict differential change in glucose, insulin, triglycerides, LDL-Cholesterol, HDL-Cholesterol, total cholesterol , C-reactive protein, apoA, apoB, or ALT. Aerobic exercise was not effective at improving most CRF in post menopausal South Asian women despite significant improvements in aerobic fitness. This is of interest as CRF adaptations often occur at much lower exercise intensities than necessary to improve aerobic fitness. This further supports previous research which suggests that South Asians may require a greater exercise stimulus to alter their unique obesity phenotype and concurrently CRF.

Geographical variations in the prevalence and management of cardiovascular risk factors in outpatients with CAD: Data from the contemporary CLARIFY registry.

To determine the current prevalence and control of major cardiovascular risk factors in stable CAD outpatients worldwide. We analysed variations in cardiovascular risk factors in stable CAD outpatients from CLARIFY, a 5-year observational longitudinal cohort study, in seven geographical zones (Western/Central Europe; Canada/South Africa/Australia/UK; Eastern Europe; Central/South America; Middle East; East Asia; and India). Patient presentation (N=32,954, mean age 64.2 years, 78% male) varied between zones, as did prevalence of risk factors (all p < 0.0001). Obesity ranged from 20% (East Asia) to 42% (Middle East), raised blood pressure from 28% (Central/South America and East Asia) to 48% (Eastern Europe), raised LDL cholesterol from 24% (Canada/South Africa/Australia/UK) to 65% (Eastern Europe), elevated heart rate (≥70 bpm) from 38% (Western/Central Europe) to 78% (India), diabetes from 17% (Eastern Europe) to 60% (Middle East), and smoking from 6% (Central/South America) to 19% (Eastern Europe). Aspirin and lipid-lowering drugs were widely used everywhere (≥84% and ≥88%, respectively). Rates of risk factor control varied geographically (all p < 0.0001). Rate of controlled blood pressure in hypertension varied from 47% (Eastern Europe) to 66% (Central/South America), glucose control in diabetes from 23% (India) to 51% (Western/Central Europe and East Asia), controlled LDL cholesterol and dyslipidaemia from 32% (Eastern Europe) to 75% (Canada/South Africa/Australia/UK), heart rate <70 bpm from 22% (India) to 62% (Western/Central Europe), and heart rate ≤60 bpm in angina patients from 2% (India) to 29% (Canada/South Africa/Australia/UK and Central/South America). Prevalence and control of major cardiovascular risk factors in stable CAD vary markedly worldwide. Many stable CAD outpatients are being treated suboptimally.

Whole-fat dairy food intake is inversely associated with obesity prevalence: findings from the Observation of Cardiovascular Risk Factors in Luxembourg study

Because research focusing on dairy food consumption and the risk for obesity is inconsistent and only a few studies have even examined specific dairy products, in regard to type of food and fat content, in relation to obesity risk, this cross-sectional study investigated whether dairy food consumption is associated with the prevalence of global and abdominal obesity. Data were analyzed from 1352 participants in the Observation of Cardiovascular Risk Factors in Luxembourg survey. We hypothesized that higher total dairy food consumption would be independently associated with reduced prevalence of obesity. A validated food frequency questionnaire was used to measure intakes of dairy foods. Odds for global obesity (body mass index ≥30 kg/m2) and abdominal obesity (waist circumference >102 cm for men and >88cm for women) were determined based on total dairy food intake as well as intakes of individual low- and whole-fat dairy products (milk, yogurt, and cheese). Total dairy food intake was inversely associated with the likelihood of global obesity (odds ratio [OR], 0.51; 95% confidence interval [CI], 0.30-0.89; P < .05) and abdominal obesity (OR, 0.51; 95% CI, 0.32-0.83; P < .01). Participants in the highest tertile of whole-fat dairy intakes (milk, cheese, yogurt) had significantly lower odds for being obese (global obesity: OR, 0.45; 95% CI, 0.29-0.72; P < .01; abdominal obesity: OR, 0.35; 95% CI, 0.23-0.54; P < .001), compared with those in the lowest intake tertile, after full adjustment for demographic, lifestyle, dietary, and cardiovascular risk factor variables. Increasing consumption of dairy foods may have the potential to lower the prevalence of global and abdominal obesity.

Effect of a participant‐driven health education programme in primary care for people with hyperglycaemia detected by screening: 3‐year results from the Ready to Act randomized controlled trial (nested within the ADDITION‐Denmark study)

To assess whether a 12-week participant-driven health education programme offered to individuals with screening-detected hyperglycaemia in Danish primary care would lead to improvements in cardiovascular risk factors, health behaviour and patient-reported outcomes after 3 years. We conducted a randomized controlled trial in 509 patients with screening-detected hyperglycaemia (impaired fasting glucose, impaired glucose tolerance or type 2 diabetes) from 33 general practices in Denmark. Individuals were pre-randomized to receive (i) routine care (n = 187), or (ii) an invitation to participate in the Ready to Act health education programme (n = 322). The programme was delivered over 12 weeks in primary care and focused on motivation, action experience, informed decision-making and social involvement to promote health behaviour change. The primary outcome was 10-year modelled cardiovascular risk. Of 322 individuals, 123 (38%) received the intervention and 436/509 individuals (86%) returned for follow-up assessment. There was no difference between the trial groups in modelled cardiovascular risk at 3 years (relative difference: 1.01; 95% CI: 0.84 to 1.23). Total cholesterol was lower (-0.24mmol/l, 95% CI: -0.45 to -0.03, P = 0.027), and patient activation was higher in the intervention than in the control group (5.3, 95% CI: 0.97 to 9.7). No other between-group differences were observed for any cardiovascular risk factor, health behaviour or patient-reported outcome variables. Subgroup analyses suggested that the intervention was more beneficial in those with impaired fasting glucose/impaired glucose tolerance than in those with type 2 diabetes. For patients with screening-detected hyperglycaemia, a participant-driven health education programme was not associated with improvements in most clinical, behavioural and patient-reported outcomes after 3 years of follow-up.

Cardiovascular Epidemiology: The Legacy of Sound National and International Studies

Cardiovascular Epidemiology: The Legacy of Sound National and International Studies

The association of c-reactive protein with arterial compliance in asymptomatic young adults: the bogalusa heart study

Atherogeneis is a chronic progressive syndrome caused by endothelial dysfunction, vascular inflammation, vessel wall remodeling and eventual vascular flow compromise. Emerging data suggest that arterial compliance inversely correlates with atherogenesis and cardiovascular (CV) events. However, information is scant on the association of chronic systemic inflammation with arterial elasticity in young asymptomatic adults. The association of hsC-reactive protein (CRP) and central-vascular compliance was studied in 641 individuals (45.2% males; 71.8% whites), aged 31-43 years enrolled in the Bogalusa Heart Study. The measured variables included large-artery compliance (capacitive, C1), representative of the aorta and its major branches; and small-artery compliance (oscillatory, C2), representative of the distal part of the circulation; hsCRP, as a measure of systemic inflammation; along with traditional CV risk factor variables. Significant race and sex differences were noted for C1 (white males>black males P-value <0.0001; males>females P-value 0.04), C2 (whites>blacks P-value 0.0004; males>females P-value<0.0001) and hsCRP (blacks>whites P-value 0.03; females>males P-value 0.002). Mean values of C1 in subjects with high hsCRP levels (>3 mg l(-1)) were significantly lower than those with average (1-3 mg l(-1)) and low levels (<1 mg l(-1)) (14.2 ml per mmHg × 10 versus 15.2 ml per mm Hg × 10 versus 15.7 ml per mmHg × 10, P for trend=0.02), after adjusting for age, race, sex and body surface area (BSA). hsCRP showed a trend toward inverse correlation with C1 (-0.07, P=0.07) but no such trend for C2, after adjusting for race and sex. In the multivariate linear regression model, adding age, race, sex, BSA, mean arterial pressure, insulin resistance, lipoprotein variables and smoking status, the effect persisted between C1 and hsCRP (β=-0.35, P=0.01). In an asymptomatic population of young adults, hsCRP predicts reduced large-artery compliance (C1). These findings support the role of systemic inflammation in early pathological changes in artery wall in atherogenesis. Small-artery compliance (C2) however did not correlate with hsCRP.

Impact of current treatments on liver disease, glucose metabolism and cardiovascular risk in non-alcoholic fatty liver disease (NAFLD): a systematic review and meta-analysis of randomised trials

Non-alcoholic fatty liver disease (NAFLD) encompasses a spectrum ranging from simple steatosis to non-alcoholic steatohepatitis (NASH): NAFLD causes an increased risk of cardiovascular disease, diabetes and liver-related complications (the latter confined to NASH). The effect of proposed treatments on liver disease, glucose metabolism and cardiovascular risk in NAFLD is unknown. We reviewed the evidence for the management of liver disease and cardio-metabolic risk in NAFLD. Publications through November 2011 were systematically reviewed by two authors. Outcomes evaluated though standard methods were: histological/radiological/biochemical features of NAFLD, variables of glucose metabolism and cardiovascular risk factors. Seventy-eight randomised trials were included (38 in NASH, 40 in NAFLD): 41% assessed post-treatment histology, 71% assessed glucose metabolism and 88% assessed cardiovascular risk factors. Lifestyle intervention, thiazolidinediones, metformin and antioxidants were most extensively evaluated. Lifestyle-induced weight loss was safe and improved cardio-metabolic risk profile; a weight loss ≥7% improved histological disease activity, but was achieved by <50% patients. Statins and polyunsaturated fatty acids improved steatosis, but their effects on liver histology are unknown. Thiazolidinediones improved histological disease activity, glucose, lipid and inflammatory variables and delayed fibrosis progression. Pioglitazone also improved blood pressure. Weight gain (up to 4.8%) was common. Antioxidants yielded mixed histological results: vitamin E improved histological disease activity when administered for 2years, but increased insulin resistance and plasma triacylglycerols. Weight loss is safe, and improves liver histology and cardio-metabolic profile. For patients not responding to lifestyle intervention, pioglitazone improves histological disease activity, slows fibrosis progression and extensively ameliorates cardio-metabolic endpoints. Further randomised controlled trials (RCTs) of adequate size and duration will assess long-term safety and efficacy of proposed treatments on clinical outcomes.

Health literacy associated with blood pressure but not other cardiovascular disease risk factors among dialysis patients.

Limited health literacy is prevalent and has been linked to adverse patient outcomes. We examined the relationship between health literacy and cardiovascular disease (CVD) risk factors, including blood pressure (BP) parameters, lipids, waist-to-hip ratio (WHR), body mass index (BMI), and tobacco utilization among dialysis patients. We conducted a cross-sectional study of 72 participants in a prospective cohort study of vascular calcification in newly initiated dialysis patients. Health literacy was assessed using the Short Test of Functional Health Literacy (S-TOFHLA) in Adults. The study population was dichotomized into those with and without adequate literacy. Linear and logistic regression analyses were used to predict continuous and dichotomous cardiovascular risk factor variables, respectively. Twenty-one percent had limited health literacy. Compared to limited health literacy, adequate health literacy was associated with lower BP parameters in multivariable analyses (systolic blood pressure (SBP): β -16.8, s.e. 6.7, P = 0.01; diastolic blood pressure (DBP): β -13.8, s.e. 4.1, P = 0.001; mean arterial pressure (MAP): β -14.8, s.e. 4.6, P = 0.002). Health literacy was not a statistically significant predictor of low-density lipoprotein (LDL), high-density lipoprotein (HDL), triglycerides, WHR, BMI, or tobacco utilization. Limited health literacy is common in individuals on dialysis. Individuals with adequate health literacy skills had DBP readings that were on average 13.8 mm Hg lower and MAP that was 14.8 mm Hg lower than those with inadequate health literacy. Prospective studies to elucidate if improvements in health literacy skills will lead to improvement in BP control are needed.

Regional variations in cardiovascular risk factors in India: India heart watch

Cardiovascular disease (CVD) is an important cause of mortality and morbidity in India. Mortality statistics and morbidity surveys indicate substantial regional variations in CVD prevalence and mortality rates. Data from the Registrar General of India reported greater age-adjusted cardiovascular mortality in southern and eastern states of the country. Coronary heart disease (CHD) mortality is greater in south India while stroke is more common in the eastern Indian states. CHD prevalence is higher in urban Indian populations while stroke mortality is similar in urban and rural regions. Case-control studies in India have identified that the common major risk factors account for more than 90% of incident myocardial infarctions and stroke. The case-control INTERHEART and INTERSTROKE studies reported that hypertension, lipid abnormalities, smoking, obesity, diabetes, sedentary lifestyle, low fruit and vegetable intake, and psychosocial stress are as important in India as in other populations of the world. Individual studies have reported that there are substantial regional variations in risk factors in India. At a macro-level these regional variations in risk factors explain some of the regional differences in CVD mortality. However, there is need to study the prevalence of multiple cardiovascular risk factors in different regions of India and to correlate them with variations in CVD mortality using a uniform protocol. There is also a need to determine the "causes of the causes" or fundamental determinants of these risk factors. The India Heart Watch study has been designed to study socioeconomic, anthropometric and biochemical risk factors in urban populations in different regions of the country in order to identify regional differences.

Distribution of HSCRP and its association with cardiovascular risk factor variables of the metabolic syndrome in adolescent learners from the Western Cape, South Africa

Distribution of HSCRP and its association with cardiovascular risk factor variables of the metabolic syndrome in adolescent learners from the Western Cape, South Africa