Carla Araújo

International differences in acute coronary syndrome patients’ baseline characteristics, clinical management and outcomes in Western Europe: the EURHOBOP study

Objective We aimed to describe current characteristics of patients admitted for acute coronary syndrome (ACS) in Western Europe and to analyse whether international in-hospital mortality variations are explained by differences in patients’ baseline characteristics and in clinical management. Methods We studied a population-based longitudinal cohort conducted in Finland, France, Germany, Greece, Portugal and Spain, and comprising 12 231 consecutive ACS patients admitted in 53 hospitals between 2008 and 2010. Baseline characteristics, clinical management and inhospital outcomes were recorded. Contextual effect of country on death was analysed through multilevel analysis. Results Of all patients included, 8221 (67.2%) had NSTEMI (non-ST-elevation myocardial infarction), and 4010 (32.8%) had STEMI (ST-elevation myocardial infarction). Inhospital mortality ranged from 15.1% to 4.9% for German and Spanish STEMI patients, and from 6.8% to 1.9% for Finnish and French NSTEMI patients (p<0.001 for both). These international variations were explained by differences in patients’ baseline characteristics (older patients more likely to have cardiogenic shock in Germany) and in clinical management, with differences in rates of thrombolysis (less performed in Germany) and primary percutaneous coronary intervention (high in Germany, low in Greece). A remaining contextual effect of country was identified after extensive adjustment. Conclusions Inhospital mortality rates of STEMI and NSTEMI patients were two to three times higher in Finland, Germany and Portugal than in Greece and Spain, with intermediate values for France. Differences in baseline characteristics and clinical management partly explain differences in outcome. Our data also suggest an impact of the healthcare system organisation.

cost ANALYsIs oF HEMoDIALYsIs AND PERItoNEAL DIALYsIs AccEss IN INcIDENt DIALYsIs PAtIENts

♦ Background: Although several studies have demonstrated the economic advantages of peritoneal dialysis (PD) over hemodialysis (HD), few reports in the literature have compared the costs of HD and PD access. The aim of the present study was to compare the resources required to establish and maintain the dialysis access in patients who initiated HD with a tunneled cuffed catheter (TCC) or an arteriovenous fistula (AVF) and in patients who initiated PD. ♦ Methods: We retrospectively analyzed the 152 chronic kidney disease patients who consecutively initiated dialysis treatment at our institution in 2008 (HD-AVF, n = 65; HD-CVC, n = 45; PD, n = 42). Detailed clinical and demographic information and data on access type were collected for all patients. A comprehensive measure of total dialysis access costs, including surgery, radiology, hospitalization for access complications, physician costs, and transportation costs was obtained at year 1 using an intention-to-treat approach. All resources used were valued using 2010 prices, and costs are reported in 2010 euros. ♦ Results: Compared with the HD-AVF and HD-TCC modalities, PD was associated with a significantly lower risk of access-related interventions (adjusted rate ratios: 1.572 and 1.433 respectively; 95% confidence intervals: 1.253 to 1.891 and 1.069 to 1.797). The mean dialysis access-related costs per patient-year at risk were €1171.6 [median: €608.8; interquartile range (IQR): €563.1 - €936.7] for PD, €1555.2 (median: €783.9; IQR: €371.4 - €1571.7) for HD-AVF, and €4208.2 (median: €1252.4; IQR: €947.9 - €2983.5) for HD-TCC (p < 0.001). In multivariate analysis, total dialysis access costs were significantly higher for the HD-TCC modality than for either PD or HD-AVF (β = -0.53; 95% CI: -1.03 to -0.02; and β = -0.50; 95% CI: -0.96 to -0.04). ♦ Conclusions: Compared with patients initiating HD, those initiating PD required fewer resources to establish and maintain a dialysis access during the first year of treatment.

A European benchmarking system to evaluate in-hospital mortality rates in acute coronary syndrome: the EURHOBOP project.

BACKGROUND Hospital performance models in acute myocardial infarction (AMI) are useful to assess patient management. While models are available for individual countries, mainly US, cross-European performance models are lacking. Thus, we aimed to develop a system to benchmark European hospitals in AMI and percutaneous coronary intervention (PCI), based on predicted in-hospital mortality. METHODS AND RESULTS We used the EURopean HOspital Benchmarking by Outcomes in ACS Processes (EURHOBOP) cohort to develop the models, which included 11,631 AMI patients and 8276 acute coronary syndrome (ACS) patients who underwent PCI. Models were validated with a cohort of 55,955 European ACS patients. Multilevel logistic regression was used to predict in-hospital mortality in European hospitals for AMI and PCI. Administrative and clinical models were constructed with patient- and hospital-level covariates, as well as hospital- and country-based random effects. Internal cross-validation and external validation showed good discrimination at the patient level and good calibration at the hospital level, based on the C-index (0.736-0.819) and the concordance correlation coefficient (55.4%-80.3%). Mortality ratios (MRs) showed excellent concordance between administrative and clinical models (97.5% for AMI and 91.6% for PCI). Exclusion of transfers and hospital stays ≤1day did not affect in-hospital mortality prediction in sensitivity analyses, as shown by MR concordance (80.9%-85.4%). Models were used to develop a benchmarking system to compare in-hospital mortality rates of European hospitals with similar characteristics. CONCLUSIONS The developed system, based on the EURHOBOP models, is a simple and reliable tool to compare in-hospital mortality rates between European hospitals in AMI and PCI.

Manufactured and hand-rolled cigarettes and smokeless tobacco consumption in Mozambique: regional differences at early stages of the tobacco epidemic.

BACKGROUND To describe the use of different types of tobacco (manufactured and hand-rolled cigarettes, and smokeless tobacco) in the adult Mozambican population, across regions. METHODS A representative sample of 12,902 Mozambicans aged 25-64 years was evaluated in a national household survey conducted in 2003 using a structured questionnaire. The patterns of tobacco consumption were described to highlight the sex-specific differences by age and between urban and rural settings, and between the north, where most of the countrys tobacco production is concentrated, and the south of the country, where the wealthiest provinces, closer to the city capital, are located. RESULTS The prevalence of current tobacco consumption was 39.9% in men and 18.0% in women. Women consumed predominantly smokeless tobacco (prevalence: 10.1%), especially in the north. Hand-rolled and manufactured cigarettes were the most frequently consumed among men (prevalences: 18.7% and 17.2%, respectively). Additionally, hand-rolled cigarette consumption predominantly occurred in the northern provinces and rural settings, whereas manufactured cigarette consumption predominated in the south and urban areas. CONCLUSIONS The overall tobacco consumption was higher than expected for an African country with scarce economic resources, mostly due to traditional forms of consumption. The gender and regional specific patterns of consumption identified in Mozambique may contribute to the development of culturally adapted and locally grounded actions for tobacco control, and stress the need of locale-specific surveillance data and public health action in this field.

Changing patterns of tobacco consumption in Mozambique: evidence from a migrant study

BackgroundMaputo, the Mozambique capital, contrasts with the rest of the country with regard to its sociodemographic characteristics and patterns of tobacco exposure. We conducted a migrant study to compare the prevalence of manufactured-cigarette smoking and traditional forms of tobacco use among dwellers in the capital who were also born in Maputo City (MC/MC) with those born in southern (SP/MC) and northern (NP/MC) provinces, and additionally with inhabitants in the latter regions.MethodsIn 2003, a representative sample of 12,902 Mozambicans aged 25-64 years was evaluated. We computed age- and education-adjusted prevalence ratios (PR) with 95%-confidence intervals (95%CI) using Poisson regression.ResultsThe prevalence of any type of tobacco consumption among Maputo City inhabitants born in other provinces contrasted with the pattern observed in locally born inhabitants (SP/MC vs. MC/MC: men, PR, 0.61; 95%CI, 0.44-0.85; women, PR, 0.38, 95%CI, 0.18-0.79; NP/MC vs. MC/MC: men, PR, 0.66; 95%CI, 0.34-1.29; women, PR, 4.56, 95%CI, 1.78-11.69); the prevalence among city inhabitants born in other provinces resembled the pattern seen in inhabitants of their provinces of origin. Traditional forms of tobacco consumption among men were rare in Maputo City, which is in stark contrast to the situation in other provinces.ConclusionsCultural background, affordability, and availability of different types of tobacco in urban Mozambique need to be considered when developing strategies to control the tobacco epidemic.

Heart rate at admission is a predictor of in-hospital mortality in patients with acute coronary syndromes: Results from 58 European hospitals: The European Hospital Benchmarking by Outcomes in acute coronary syndrome Processes study

Aims: The purpose of this study was to investigate the relationship between heart rate at admission and in-hospital mortality in patients with ST-segment elevation myocardial infarction (STEMI) and non-ST-segment elevation acute coronary syndrome (NSTE-ACS). Methods: Consecutive ACS patients admitted in 2008–2010 across 58 hospitals in six participant countries of the European Hospital Benchmarking by Outcomes in ACS Processes (EURHOBOP) project (Finland, France, Germany, Greece, Portugal and Spain). Cardiogenic shock patients were excluded. Associations between heart rate at admission in categories of 10 beats per min (bpm) and in-hospital mortality were estimated by logistic regression in crude models and adjusting for age, sex, obesity, smoking, hypertension, diabetes, known heart failure, renal failure, previous stroke and ischaemic heart disease. In total 10,374 patients were included. Results: In both STEMI and NSTE-ACS patients, a U-shaped relationship between admission heart rate and in-hospital mortality was found. The lowest risk was observed for heart rates between 70–79 bpm in STEMI and 60–69 bpm in NSTE-ACS; risk of mortality progressively increased with lower or higher heart rates. In multivariable models, the relationship persisted but was significant only for heart rates >80 bpm. A similar relationship was present in both patients with or without diabetes, above or below age 75 years, and irrespective of the presence of atrial fibrillation or use of beta-blockers. Conclusion: Heart rate at admission is significantly associated with in-hospital mortality in patients with both STEMI and NSTE-ACS. ACS patients with admission heart rate above 80 bpm are at highest risk of in-hospital mortality.

Percutaneous coronary intervention reduces mortality in myocardial infarction patients with comorbidities: Implications for elderly patients with diabetes or kidney disease

BACKGROUND Percutaneous coronary intervention (PCI) reduces mortality in most myocardial infarction (MI) patients but the effect on elderly patients with comorbidities is unclear. Our aim was to analyse the effect of PCI on in-hospital mortality of MI patients, by age, sex, ST elevation on presentation, diabetes mellitus (DM) and chronic kidney disease (CKD). METHODS Cohort study of 79,791 MI patients admitted at European hospitals during 2000-2014. The effect of PCI on in-hospital mortality was analysed by age group (18-74, ≥75years), sex, presence of ST elevation, DM and CKD, using propensity score matching. The number needed to treat (NNT) to prevent a fatal event was calculated. Sensitivity analyses were conducted. RESULTS PCI was associated with lower in-hospital mortality in ST and non-ST elevation MI (STEMI and NSTEMI) patients. The effect was stronger in men [Odds ratio (95% confidence interval) 0.30 (0.25-0.35)] than in women [0.46 (0.39-0.54)] aged ≥75years, and in NSTEMI [0.22 (0.17-0.28)] than in STEMI patients [0.40 (0.31-0.5)] aged <75years. PCI reduced in-hospital mortality risk in patients with and without DM or CKD (54-72% and 52-73% reduction in DM and CKD patients, respectively). NNT was lower in patients with than without CKD [≥75years: STEMI=6(5-8) vs 9(8-10); NSTEMI=10(8-13) vs 16(14-20)]. Sensitivity analyses such as exclusion of hospital stays <2days yielded similar results. CONCLUSIONS PCI decreased in-hospital mortality in MI patients regardless of age, sex, and presence of ST elevation, DM and CKD. This supports the recommendation for PCI in elderly patients with DM or CKD.

Regional variation in coronary heart disease mortality trends in Portugal, 1981–2012

BACKGROUND Information is scarce about the geographic variation in time trends of mortality from coronary heart disease (CHD). We aimed to describe trends in death rates, absolute number of deaths and years of life lost (YLL) due to CHD among men and women in Portugal, by region, from 1981 to 2012. METHODS The age-standardized mortality rates from CHD were estimated by sex and region. We used joinpoint regression analysis to calculate the annual percent change (APC) in mortality and to identify points of significant change in the trend. The YLL due to premature mortality for CHD were computed using the Global Burden of Disease method. RESULTS The age-adjusted mortality from CHD decreased between 1981 and 2012, both in men and women, but with significantly different APC by region. Smaller declines in rates were observed in Alentejo (men: APC 1993-2012: -2.4%; women: APC 1991-2012: -2.4%). The greatest decline was observed in Madeira between 2003 and 2012, in men (APC: -7.6%) and women (APC: -9.7%). The decline in rates in Algarve started only after 2003, whereas it was consistent from 1981 in the North and started in the 1990s in most other regions. A decrease in the number of deaths was only observed after 2000. The YLL from CHD decreased from 1981 to 2012, mainly after 2000. CONCLUSIONS In Portugal, between 1981 and 2012, relative declines of CHD mortality indicators were different by geographic region. Consistent decreases in mortality rates were only observed in the Centre, Lisbon and North, the most populated and urbanized regions.

Disability-adjusted life years lost due to ischemic heart disease in mainland Portugal, 2013

INTRODUCTION AND OBJECTIVES Estimates of the burden of ischemic heart disease (IHD), including geographic differences, should support health policy decisions. We set out to estimate the burden of IHD in mainland Portugal in 2013 by calculating disability-adjusted life years (DALYs) and to compare this burden between five regions. METHODS Years of life lost (YLLs) were calculated by multiplying the number of IHD deaths in 2013 (Statistics Portugal) by the life expectancy at the age at which death occurred. Years lived with disability (YLDs) were computed as the number of cases of acute coronary syndrome, stable angina and ischemic heart failure multiplied by an average disability weight. Crude and age-standardized DALYs (direct method, Standard European Population) were calculated for mainland Portugal and for the Northern, Central, Lisbon, Alentejo and Algarve regions. RESULTS In 2013, 95413 DALYs were lost in mainland Portugal due to IHD. YLLs accounted for 88.3% of the disease burden. Age-standardized DALY rates per 1000 population were higher in men than in women, across the entire country (8.9 in men; 3.4 in women) and within each region, ranging from 7.3 in the Northern and Central regions to 11.8 in the Algarve in men, and from 2.6 in the Northern region to 4.6 in Lisbon in women. CONCLUSIONS Nearly 100000 DALYs were lost to IHD in Portugal, mostly through early mortality. This study enables accurate comparisons with other countries and between regions; however, it highlights the need for population-based studies to obtain specific data on morbidity.

Missed Opportunities in Symptomatic Patients before a First Acute Coronary Syndrome: The EPIHeart Cohort Study

Objectives: The aim of this study was to assess the proportion of patients with a first episode of acute coronary syndrome (ACS) reporting preceding chest pain, having previously sought medical care and undergone the performance of exams, and to identify the determinants of seeking medical advice and undergoing electrocardiogram (ECG). Methods: Within a cohort study, 690 patients with a first episode of ACS were evaluated. A questionnaire was applied to assess chest pain within the preceding 6 months of the event and health system resources utilization. Determinants were identified by logistic regression. Results: Preceding chest pain was reported by 61% of patients, 43% of these sought medical help, of whom less than half underwent ECG, and in 39% pain was attributed to a problem of the heart. Patients with hypertension were more likely to seek medical care (adjusted odds ratio, OR, 2.13, 95% CI 1.29-3.51), and former smokers (OR 0.52, 95% CI 0.28-0.99) and patients of a higher social class (OR 0.16, 95% CI 0.05-0.48) were less likely to seek medical care. The performance of ECG was associated with male sex (OR 2.56, 95% CI 1.11-5.87), health subsystem coverage (OR 3.88, 95% CI 1.11-13.53), and living in the northeastern region (OR 9.07, 95% CI 4.07-20.24), whereas cognitive impairment (OR 0.37, 95% CI 0.15-0.92) and being employed (OR 0.36, 95% CI 0.14-0.97) were inversely associated. Conclusions: These results suggest there are opportunities to improve the diagnosis of myocardial ischemia before acute coronary events.