[Wind days in Taranto (Southern Italy): a public health intervention between technical and social contradictions. Lessons learned]. / Wind days a Taranto: un intervento di sanità pubblica tra contraddizioni tecniche e sociali. Lezioni imparate.

Public health interventions in the context of environmental crisis are necessary and desirable for the protection of public health. This manuscript highlights the critical aspects and potentials of a public health intervention by reconstructing the most relevant stages of the case study called 'Precautionary measures during wind days in Taranto'. Under particular weather conditions, the 'wind days' intervention includes prescriptions to companies and recommendations to the public. The latter has been found to be scientifically inconsistent, as highlighted by studies published over the years. The case-study analysis showed that any public health measure must include: a timed evaluation of the measure effectiveness and consider the possibility of its revision; involvement of the population at all stages.

Epidemiology of seropositive myasthenia gravis in Sardinia: A population-based study in the district of Sassari.

INTRODUCTION/AIMS: The global incidence and prevalence of myasthenia gravis (MG) range between 6-31/million and 10-37/100,000, respectively. Sardinia is a high-risk region for different immune-mediated disorders, but the epidemiology of MG remains unclear. We determined the epidemiology of MG with acetylcholine receptor (AChR)-immunoglobulin G (IgG) and muscle-specific tyrosine kinase (MuSK)-IgG in the district of Sassari (North-Western Sardinia; population, 325,288). METHODS: From the laboratory of the University Hospital of Sassari (reference for AChR/MuSK-IgG testing in Sardinia since 1998) and the main neurology units in Sardinia, we retrospectively identified MG patients with (1) AChR-IgG and/or MuSK-IgG positivity by radioimmunoprecipitation assay; and (2) residency in the district of Sassari. Incidence (January 2010-December 2019) and prevalence (December 31, 2019) were calculated. RESULTS: A total of 202 patients were included (incident, 107; prevalent, 180). Antibody specificities were AChR (n = 187 [93%]) and MuSK (n = 15 [7%]). The crude MG incidence (95% confidence interval) was 32.6 (26.8-39.2)/million, while prevalence was 55.3 (47.7-63.9)/100,000. After age-standardization to the world population, incidence decreased to 18.4 (14.3-22.5)/million, while prevalence decreased to 31.6 (26.1-37.0)/100,000. Among incident cases, age strata (years) at MG onset were: <18 (2%), 18-49 (14%), 50-64 (21%), and ≥65 (63%). DISCUSSION: Sardinia is a high-risk region for MG, with a prevalence that exceeds the European threshold for rare disease. Identification of the environmental and genetic determinants of this risk may improve our understanding of disease pathophysiology.

Incidence of childhood leukemia before and after shut down of nuclear power plants in Germany in 2011: A population-based register study during 2004 to 2019.

The association between leukemia and proximity to nuclear-power-plants (NPPs) has been assessed in several countries with inconsistent results. A case-control study from Germany had shown an increased risk for childhood leukemia (diagnoses 1980-2003) near NPPs. Germany began shutting down nuclear reactors in 2011, following the Fukushima disaster. We tested whether the previously observed association between leukemia and proximity to NPP persisted despite the shutdown. We used an ecological study design to investigate the incidence of leukemia during 2004 to 2019 in children aged 0 to 14 years living near NPPs where at least one reactor was shut down in 2011. We defined study and control areas as municipalities whose surface area was at least 75% within 10 km or between 10 and 50 km of NPPs, respectively. We calculated age-standardized rates and incidence rate ratios (IRR) using control-areas as the reference. We also computed standardized incidence ratios (SIR) separately for each NPP using incidence rates of the German population as a reference. IRR decreased from 1.20 (95% confidence interval: 0.81-1.77) in 2004 to 2011 to 1.12 (0.75-1.68) in 2012 to 2019. Analyses of single plants showed an excess of childhood leukemia during 2004 to 2019 for the Unterweser-NPP, based only on three cases, and the Krümmel-NPP (n = 14; SIR: 1.98, 1.17-3.35). We found slightly decreasing of leukemia incidence rate ratios after the shutdown of nuclear reactors in 2011. Due to the small number of cases, risk estimates have large uncertainty. Further research including a longer follow-up is warranted. The consistent excess of incidence cases around Krümmel may require analytical epidemiological analysis.

Patterns of coronary heart disease mortality in Italy from 1931 to 2015 and a focus on a region with highly industrialized areas.

BACKGROUND: Coronary Heart Disease (CHD) is associated with various risk factors, including environmental stressors. The aim of our paper is to study the mortality patterns in Italy with a focus on provinces of the Apulia Region from 1931 to 2015 to analyze the burden of the disease over time. METHODS: We conducted an ecological analysis of mortality from all causes and from CHD in main Italian geographical areas and in the Apulian provinces, from 1931 to 2015. Sex-specific mortality and population data were obtained from the Italian National Institute of Statistics since 1969. Direct standardized mortality rates (SDRs) per 10,000 inhabitants with 90% confidence intervals (90%CI) were calculated from 1969, using the European population as standard. The standardized mortality ratios (SMRs%) were calculated with 90%CI and the Italian population as reference. RESULTS: The SDRs indicate a decline in mortality from CHD in all geographical Italian areas and in the Apulian provinces for both sexes. However, this decline slowed over time, particularly in the South. The highest values of SMRs% were observed in the industrialized areas of Taranto and especially Brindisi, in both sexes. CONCLUSIONS: The historical reconstruction over about 80 years highlighted critical issues for CHD at the start of the industrial development in the provinces of Brindisi and Taranto. This might suggest environmental pollution as risk factor for cardiovascular diseases. Furthermore, it would be necessary to verify how much other risk factors (eg. diabetes and obesity) affect the slowdown in the CHD mortality decline over the last decade.

Nitrogen dioxide component of air pollution increases pulmonary congestion assessed by lung ultrasound in patients with chronic coronary syndromes.

Pulmonary congestion is an intermediate biomarker and long-term predictor of acute decompensated heart failure.To evaluate the effects of air pollution on pulmonary congestion assessed by lung ultrasound.In a single-center, prospective, observational study design, we enrolled 1292 consecutive patients with chronic coronary syndromes referred for clinically indicated ABCDE-SE, with dipyridamole (n = 1207), dobutamine (n = 84), or treadmill exercise (n = 1). Pulmonary congestion was evaluated with lung ultrasound and a 4-site simplified scan. Same day values of 4 pollutants were obtained on the morning of testing (average of 6 h) from publicly available data sets of the regional authority of environmental protection. Assessment of air pollution included fine (< 2.5 µm diameter) and coarse (< 10 µm) particulate matter (PM), ozone and nitrogen dioxide (NO2).NO2 concentration was weakly correlated with rest (r = .089; p = 0.001) and peak stress B-lines (r = .099; p < 0.001). A multivariable logistic regression analysis, NO2 values above the median (23.1 µg/m3) independently predicted stress B-lines with odds ratio = 1.480 (95% CI 1.118-1.958) together with age, hypertension, diabetes, and reduced (< 50%) ejection fraction. PM2.5 values were higher in 249 patients with compared to those without B-lines (median and IQR, 22.0 [9.1-23.5] vs 17.6 [8.6-22.2] µg/m3, p < 0.001). No other pollutant correlated with other (A-C-D-E) SE steps.Higher concentration of NO2 is associated with more pulmonary congestion mirrored by B-lines at lung ultrasound. Local inflammation mediated by NO2 well within legally allowed limits may increase the permeability of the alveolar-capillary barrier and therefore pulmonary congestion in susceptible subjects.ClinicalTrials.gov Identifier: NCT030.49995.

[Participation and facilitation in environment and health contexts. The case study of San Donaci (Apu-lia Region, Southern Italy)]. / Partecipazione e facilitazione nei contesti ambientali e sanitari. L'esperienza di San Donaci (Brindisi).

On behalf of the municipal administration of San Donaci (Brindisi Province, Apulia Region, Southern Italy), the Italian National Research Council counducted a participatory epidemiology experience. The activity of participation and discussion between the research group, the public administration, and citizens involved an association with expertise in facilitation. The participation methodology, adapted to the context, was articulated in focus groups and circle time. In addition to expanding the environmental and health analyses by enriching the final report, facilitation supported the expression of the different points of view, restoring greater complexity to the discussion by rebuilding a partial climate of trust among the participants.

Environmental assessment of interventions to restrain the impact of industrial pollution using a quasi-experimental design: limitations of the interventions and recommendations for public health policy.

BACKGROUND: In an industrial area, the asymmetry between the weights of the economic interests compared to the public-health needs can determine which interests are represented in decision-making processes. This might lead to partial interventions, whose impacts are not always evaluated. This study focuses on two interventions implemented in Taranto, Italy, a city hosting one of the largest steel plants in Europe. The first intervention deals with measures industrial plants must implement by law to reduce emissions during so called "wind days" in order to reduce PM10 and benzo [a] pyrene concentrations. The second one is a warning to the population with recommendations to aerate indoor spaces from 12 pm to 6 pm, when pollutant concentrations are believed to be lower. METHODS: To analyse the impact of the first intervention, we analysed monthly PM10 data in the period 2009-2016 from two monitoring stations and conducted an interrupted-time-series analysis. Coefficients of time-based covariates are estimated in the regression model. To minimise potential confounding, monthly concentrations of PM10 in a neighbourhood 13 km away from the steel plant were used as a control series. To evaluate the second intervention, hourly concentrations of PM10, SO2 and polycyclic-aromatic-hydrocarbons (PAHs) were analysed. RESULTS: PM10 concentrations in the intervention neighbourhood showed a peak just a few months before the introduction of the law. When compared to the control series, PM10 concentrations were constantly higher throughout the entire study period. After the intervention, there was a reduction in the difference between the two time-series (- 25.6%). During "wind days" results suggested no reduction in concentrations of air pollutants from 12 pm to 18 pm. CONCLUSION: Results of our study suggest revising the warning to the population. Furthermore, they evidence that in complex highly industrialised areas, air quality interventions cannot focus on only a single pollutant, but rather should consider the complex relationships between the different contaminants. Environmental interventions should be reviewed periodically, particularly when they have implications for social constraints. While the results of our study can be related only to the specific situation reported in the article, the methodology applied might be useful for the environmental management in industrial areas with similar features.

The effects of lockdown-induced air quality changes on the results of cardiac functional stress testing in coronary artery disease and heart failure patients.

In vulnerable subjects, the increase in air pollution worsens the signs of myocardial ischemia. Lockdown during COVID-19 pandemics substantially cleaned the air. The objective of this is to assess the effects of air cleaning due to lockdown on stress echocardiography (SE) results. We enrolled 19 patients with chronic coronary artery disease and/or heart failure referred to SE (semi-supine bicycle exercise, n = 8, or dipyridamole, n = 11). Before and soon after lockdown, we assessed regional wall motion abnormalities (abnormal value: worsening of ≥ 2 segments), B-lines (a sign of pulmonary congestion, 4-site simplified scan, abnormal value ≥ 2), and coronary flow velocity reserve in left anterior descending artery (CFVR, abnormal value < 2.0). Local air quality indicators (same day of SE) of fine particulate matter (PM2.5) and nitrogen dioxide (NO2) were obtained from publicly available data sets of the regional authority of environmental protection. After lockdown, NO2 concentration decreased from 19 ± 10 to 10 ± 4 µg/m3 (p = 0.006). After lockdown, abnormal responses remained unchanged for ischemia (21% vs 16%, p = ns) and decreased for B-lines (42% vs 5%, p = 0.008) and CFVR (84 vs 42%, p = 0.007). Changes in coronary flow velocity reserve (CFVR) were correlated to same-day variations in NO2 (r = -0.578, p = 0.010) and preceding 30-day changes in PM2.5 (r = -0.518, p = 0.023). After lockdown, air cleaning was associated with a beneficial effect on coronary small vessel dysfunction and alveolar-capillary barrier distress mirrored by improvement of CFVR and B-lines during SE in vulnerable patients. ClinicalTrials.gov Identifier: NCT 030.49995.

Gender specific excess mortality in Italy during the COVID-19 pandemic accounting for age.

Since the beginning of the COVID-19 pandemic, data have been accumulated to examine excess mortality in the first half of 2020. Mortality in the preceding year or years is used to calculate the expected number of deaths, which is then compared with the actual number of deaths in 2020. We calculated weekly age- and sex-specific mortality rates for 93.1% of the Italian municipalities for the years 2015-2019 and for the first 26 weeks in 2020. We assumed the mortality experience during 2015-2019 as the reference period to calculate standardised mortality ratios. Furthermore, in order to compare the mortality experience of males and females, we calculated sex- and age- specific weekly direct standardised mortality rates and differences between the observed and expected number of deaths. We observed considerable changes in the demographics in the Italian population between the years 2015 and 2020, particularly among people 60 years and older and among males. The population is aging and the proportion of elderly males has increased, which was not reflected adequately in previous estimates of excess mortality. Standardized excess mortality results show that in Italy between the 8th and 26th weeks in 2020, there were 33,035 excess deaths, which is only 643 fewer deaths than the official COVID-19 death toll for this time period. A comparative increase in the mortality rates was observed in March among both sexes, but particularly for males. Comparisons with recently published data show considerably higher excess deaths, but these data were either not covering the complete country or did not account for age and sex. Neglecting the demographic changes in a region, even over a short time span, can result in biased estimates.

[Sex/gender differences in COVID-19 lethality: what the data say, and do not say]. / Differenze sesso/genere nella letalità COVID-19: cosa dicono e non dicono i dati.

BACKGROUND: scientific literature indicates that there are sex, and gender differences in the development, symptomatology and evolution of different diseases, in the response to drugs and in the therapeutic pathways. Even in the COVID-19 epidemic some sex/gender differences emerged. OBJECTIVES: to analyze COVID-19 epidemic data by gender and age in Italy, Germany, Spain, and Sweden, characterized by having implemented different pandemic containment policies, with the aim of observing any characteristics that can be interpreted with the lens of sex/gender differences. MATERIALS AND METHODS: we used confirmed cases and deaths associated with COVID-19 for Italy, Spain, Germany, and Sweden from respective national surveillance databases. Mortality data for Italy were also analysed. The period of investigation was March-May 2020. As indicators, we used the case fatality ratio adjusted for time delay and SMR for mortality. RESULTS: women are more vulnerable to COVID- 19 infection in the 30-60-year age group. Case fatality ratio is higher in men than women, with a ratio men/women equal to 1.7 in Italy, Spain, and Sweden and 1,4 in Germany. The ratio increases in the lower age groups. The analysis of the mortality data observed/expected in Italy in the same period with respect to 2015-2019 shows a comparable excess with SMR equal to 132 for men and 127 for women. CONCLUSIONS: COVID-19 affects both genders with some differences in the incidence, higher in women, and lethality, higher in men. These differences highlight the need to better understand the sex/gender and age interaction both for epidemiological surveillance and for a better gender-appropriateness of the ongoing prophylactic and therapeutic treatments. This would be possible if all health indicators (symptoms, past illnesses, primary and hospital-level health care, hospitalization, etc.) were provided by age and gender. Analysis of the causes of death could help to better understand the increase in mortality for both genders, in particular for women, for whom a lower lethality for COVID-19 appears from data.

Antimicrobial activity of a new intact skin antisepsis formulation.

UNLABELLED: Different antiseptic formulations have shown limitations when applied to disinfecting intact skin, notably short-term tolerability and/or efficacy. The purpose of this study was optimizing a new antiseptic formulation specifically targeted at intact skin disinfection and evaluating its in vitro microbicidal activity and in vivo efficacy. METHODS: The biocidal properties of the antiseptic solution containing 0.5% chloramine-T diluted in 50% isopropyl alcohol (Cloral; Eurospital SpA Trieste, Italy) were measured in vitro versus gram-positive-, gram-negative-, and acid-alcohol-resistant germs and fungi with standard suspension tests in the presence of fetal bovine serum. Virus-inhibiting activity was evaluated in vitro against human cytomegalovirus, herpes simplex virus, poliovirus, hepatitis B virus, and hepatitis C virus. Tests used different methods for the different biologic and in vitro replication capacity of these human viruses. Lastly, Cloral tolerability and skin colonization retardation efficacy after disinfection were studied in vivo. RESULTS: The antiseptic under review showed fast and sustained antimicrobial activity. The efficacy of Cloral against clinically important bacterial and viral pathogens and fungi was highlighted under the experimental conditions described in this article. Finally, microbial regrowth lag and no side effects were documented in vivo after disinfection of 11 volunteers. CONCLUSIONS: A stable chloramine-T solution in isopropyl alcohol may be suggested for intact skin antisepsis.