Assessment of Low-Level Air Pollution and Cardiovascular Incidence in Gdansk, Poland: Time-Series Cross-Sectional Analysis.

(1) Background: More than 1.8 million people in the European Union die every year as a result of CVD, accounting for 36% of all deaths with a large proportion being premature (before the age of 65). There are more than 300 different risk factors of CVD, known and air pollution is one of them. The aim of this study was to investigate whether daily cardiovascular mortality was associated with air pollutants and meteorological conditions in an urban environment with a low level of air pollution. (2) Methods: Data on daily incidence of strokes and myocardial infarctions in the city of Gdansk were obtained from the National Health Fund (NHF) and covered the period from 1 January 2014 to 31 December 2018. Data on the level of pollution, i.e., SO2, NO, NO2, NOx, CO, PM10, PM2.5, CO2, O3 and meteorological conditions came from the foundation: Agency of Regional Air Quality Monitoring in the Gdansk metropolitan area (ARMAG). Using these data, we calculated mean values with standard deviation (SD) and derived the minimum and maximum values and interquartile range (IQR). Time series regression with Poisson distribution was used in statistical analysis. (4) Results: Stroke incidence is significantly affected by an increase in concentrations of NO, NO2 and NOx with RRs equal to 1.019 (95%CI: 1.001-1.036), 1.036 (95%CI: 1.008-1.064) and 1.017 (95%CI: 1.000-1.034) for every increase in IQR by 14.12, 14.62 and 22.62 µg/m3, respectively. Similarly, myocardial infarction incidence is significantly affected by an increase in concentrations of NO, NO2 and NOx with RRs equal to 1.030 (95%CI: 1.011-1.048), 1.053 (95%CI: 1.024-1.082) and 1.027 (95%CI: 1.010-1.045) for every increase in IQR by 14.12, 14.62 and 22.62 µg/m3, respectively. Both PM10 and PM2.5 were positively associated with myocardial infarction incidence. (5) Conclusions: In this time-series cross-sectional study, we found strong evidence that support the hypothesis that transient elevations in ambient PM2.5, PM10, NO2, SO2 and CO are associated with higher relative risk of ischemic stroke and myocardial infarction incidents.

Breast Cancer and Spirituality Among Women in Poland: A Case-Control Study.

In this case-control study, we assessed differences in daily spiritual experiences between patients with breast cancer diagnoses and healthy controls in relation to other breast cancer risk factors. The participants were 201 newly diagnosed Polish patients with breast cancer (58 ± 6 years) and 201 age-matched healthy controls. Spiritual experiences were assessed using the Daily Spiritual Experiences Scale (DSES). Adjusted odds ratios (OR) and 95% confidence intervals (CI) of the DSES score for breast cancer diagnosis were calculated with logistic regression. The DSES score was significantly higher in the healthy controls than in the cases. After controlling for alcohol use, education, BMI, and rural residence, higher spirituality was associated with a lower risk of breast cancer (OR 0.98, 95% CI 0.97-1.00). Two DSES item scores differed significantly between cases and controls, being lower in breast cancer cases: "I am spiritually touched by the beauty of creation" (p = 0.01) and "I feel selfless caring for others" (p = 0.049). After controlling for other variables (i.e., hormone replacement therapy, family history, breastfeeding, and diet quality), the DSES score was statistically non-significant (OR 0.99, 95% CI 0.97-1.006). Therefore, the original relationship DSES score and breast cancer was quite weak. Although the study found little relationship between the analyzed variables, presented differences in spirituality may differentiate the patterns of spiritual well-being among breast cancer patients; however, more data are needed from longitudinal study designs to establish causal inferences.

Increased risk of death compared to other antipsychotics in elderly clozapine users in Poland.

Clozapine can cause severe adverse effects. Few epidemiologic studies have considered the effect of clozapine use in elderly patients. The aim of this study was to assess mortality in elderly patients treated with clozapine in comparison to patients treated with first- or second-generation antipsychotics. We conducted a retrospective cohort study involving 26 639 patients who were 65 years of age or older and were receiving antipsychotic medication between 2008 and 2012. Cox proportional-hazards models were used to compare the risk of death between different groups of antipsychotics after controlling for age, sex, concomitant treatment with cardiovascular or metabolic medications. The use of antipsychotic medications other than clozapine was associated with a lower adjusted risk of death [hazard ratio, 0.89; 95% confidence interval (95% CI), 0.79-0.99]. The use of cardiac and antilipemic but not antidiabetic drugs was associated with a significantly lower risk of death in this population (hazard ratio, 0.88; 95% CI, 0.83-0.93; hazard ratio, 0.66; 95% CI, 0.58-0.75 and hazarad ratio, 1.09; 95% CI, 0.96-1.24, respectively). These results suggest that clozapine is associated with an increased risk of death in the elderly. Although the study was based on administrative records linkage, its results suggest that attention should be paid to patients taking antipsychotics.

Health status and its socio-economic covariates in the older population in Poland - the assumptions and methods of the nationwide, cross-sectional PolSenior2 survey.

INTRODUCTION: Population ageing constitutes an increasing medical, social, and economic burden worldwide. Optimal senior policy should be based on well-assessed knowledge on the prevalence and control of age-related diseases, multimorbidity, disabilities, and their social determinants. The objective of this paper is to describe the assumptions, methods, and sampling procedures of the PolSenior2 survey, which was aimed at characterising the health status of old and very-old adults in Poland. MATERIAL AND METHODS: The project was conducted in the period 2018-2019 as a cross-sectional survey of a representative sample of people aged 60 years and over. Subjects were selected using three-stage stratified and proportional random sampling in seven equally sized (n = 850) age groups. The study protocol consisted of face-to-face interviews, specific geriatric scales and tests, and anthropometric and blood pressure measurements performed by well-trained nurses at participants homes as well as blood and urine sample laboratory tests. RESULTS: In the Polsenior2 study a group of 5987 subjects underwent the questionnaire parts of the survey, and almost all (n = 5823) agreed to blood or urine sample collection. CONCLUSIONS: In recent decades several studies focused on various aspects of elderly health and life conditions had been carried out in Poland and Central and Eastern Europe. However, none of them is so complex and has covered so many issues as PolSenior2, which is the largest study devoted to the health status of older persons in Poland and one of the largest and the most comprehensive in Europe. The results of the study will help to improve health policy targeted at the elderly population in Poland.

Early Alcohol Use Initiation, Obesity, Not Breastfeeding, and Residence in a Rural Area as Risk Factors for Breast Cancer: A Case-Control Study.

The aim of this study was to determine the risk factors for breast cancer in the Polish population. In total, 201 Polish women newly diagnosed with breast cancer and 201 one-to-one age-matched healthy controls participated in this case-control study. Data on sociodemographic characteristics, reproductive and menstrual history, medical history, lifestyle factors, and anthropometric measurements were collected by the interviewers. Odds ratios and 95% confidence intervals were obtained using multivariate unconditional logistic regression models controlling for potential confounders. Significant relationships were observed between BMI, alcohol use initiation, breastfeeding, education, and place of residence. Obese women had a higher risk of breast cancer than women with a BMI < 30 (OR = 1.9; 95% CI: 1.16 to 3.04). Early alcohol use initiation (≤15 years) was associated with an almost two-fold higher risk of breast cancer (OR = 1.98, 95% CI: 1.06 to 3.69). Breastfeeding for less than 3 months (OR = 2.3, 95% CI: 1.52 to 3.5), receiving a basic and vocational education (OR = 2.5, 95% CI: 1.49 to 4.19), and living in a rural area (OR = 1.7, 95% CI: 1.05 to 2.9) increased the risk of breast cancer. Prevention activities for breast cancer are already needed in adolescents and young women. A much greater emphasis should also be placed on breast cancer prevention campaigns in rural areas in Poland.

Cause-specific mortality and risk factors of death among inpatients of a psychiatric hospital. / Umieralnosc szczególowa i czynniki ryzyka zgonu wsród pacjentów szpitala psychiatrycznego.

OBJECTIVES: The aim of the study was to determine general and specific in-hospital mortality rates, and to identify mortality risk factors. METHODS: The study included 15,997 medical records of subjects who have been hospitalized at the Hospital for Patients with Neurotic and Psychiatric Diseases in Starogard Gdanski in 2005-2012. The study was designed as aretrospective cohort study with Cox proportional model for survival analysis. Standardized mortality ratio (SMR) and its 95% confidence intervals were calculated (95% CI). RESULTS: Independent risk factors for death were: male sex, older age, hypertension, atherosclerosis, history of myocardial infarction, heart failure, cirrhosis, tuberculosis, history of cancer, anemia, and inflammation. Delirium not induced by alcohol or other psychoactive substances was associated with the highest mortality risk of all psychiatric diagnoses. Unemployment was associated with doubled risk of in-hospital death. SMR for the whole population of hospitalized patients amounted to 17.88 (95% CI: 15.99-20.00). CONCLUSIONS: Medical comorbidities have a significant and clinically important impact on in-hospital mortality in psychiatric patients in Poland. Clinicians' awareness and active management of medical conditions amongst such patients is needed to reduce the risk of inhospital mortality in psychiatric facilities.

Socioeconomic correlates and biochemical profiles of smokers in Poland: a cross-sectional study.

INTRODUCTION: Epidemiological studies have shown a fairly constant association between the socioeconomic status and smoking. However, associations between smoking and the biological indicators of health status have not been well described yet. OBJECTIVES: This study aimed to determine the relationship among smoking, biochemical risk factors, and sociodemographic characteristics in the Polish population. PATIENTS AND METHODS: A survey was carried out in a representative sample of Polish residents aged 18 to 79 years. A total of 2413 randomly selected subjects participated in the survey. Logistic regression analysis as well as parametrical and nonparametrical tests were performed. RESULTS: Significantly higher cholesterol, apolipoprotein B, and potassium levels were observed in smoking women and men compared with the nonsmoking population. Significantly lower bilirubin levels were noted in smoking individuals. Higher C­reactive protein and lower creatinine levels were reported only in the smoking male population compared with nonsmokers. There was a significant inverse gradient in the relationship between income and smoking. Single women and men were at greater risk of being smokers (odds ratio [OR], 1.9 and 2.39, respectively). Individuals from small towns (less than 50 000 inhabitants) were at significantly greater risk of smoking compared with those living in rural areas (OR, 1.45 and 1.64 in women and men, respectively). CONCLUSIONS: We found differences regarding socioeconomic characteristics and major biochemical parameters between smokers and nonsmokers in Poland. However, it is difficult to establish which associations are causal for cardiovascular risk owing to the cross­sectional design of this study.

Total Dietary Fats, Fatty Acids, and Omega-3/Omega-6 Ratio as Risk Factors of Breast Cancer in the Polish Population - a Case-Control Study.

BACKGROUND/AIM: Breast cancer is the most common type of cancer among women around the world and the leading cause of cancer-related death among women. The knowledge about modifiable risk factors, such as diet, can be an acceptable, cheap and non-pharmacological prevention tool. The aim of this study was to investigate the association between dietary fat, dietary fatty acids, fish intake, and breast cancer in women. PATIENTS AND METHODS: A case-control study was designed. A total of 201 consecutive, newly diagnosed, polish female cancer patients (mean age: 58 years) and 201 one-to-one age-matched controls were enrolled. A standardised questionnaire assessing various socio-demographic, clinical, lifestyle, and dietary characteristics was applied via face-to-face interviews. Detailed dietary intake information was assessed using a validated Food Frequency Questionnaire. Odds ratios (OR) and 95% confidence intervals (95%CI) were obtained using multiple unconditional logistic regression models controlling for non-dietary and dietary potential confounders. RESULTS: Consumption of polyunsaturated fats (PUFA) over 10% of total energy intake was associated with a significantly lower risk of breast cancer compared to low intake of PUFA (OR=0.4, 95%CI=0.19-0.85). Low (<0.2) omega-3/ omega-6 ratio (OR=2.04, 95%CI=0.996-4.17), fish consumption less than once every six months (OR=3.37, 95%CI=1.57-7.23) and being overweight (OR=2.07, 95%CI=1.3-3.3) were associated with increased risk of breast cancer. Residents of rural areas had a significantly higher risk compared to women from urban areas (OR=1.8, 95%CI=1.06-3.03). CONCLUSION: High intake of PUFA can decrease the risk of breast cancer, while the low omega-3/omega-6 ratio increases the risk. In addition, overweight state, eliminating fish from the diet and living in rural areas can also increase the risk of breast cancer.

Selected dietary factors and breast cancer risk

While breast cancer is the most common cancer in women around the world, it is necessary to know the nutritional factors that can have both protective and negative effects on the risk of breast cancer. Unfortunately, the results of the research still do not give a definite answer to the question: which food products or food ingredients reduce, and which increase the risk of breast cancer. At a time when the main source of knowledge of health for the majority of society is the internet, myths about this disease are still being replicated. Only on the basis of clear scientific evidence can we build an effective prevention program that can save millions of women from breast cancer. In this review, we decided to present nutritional risk factors whose impact on the risk of breast cancer was examined, however, the results are not conclusive, like: fibre, milk products

Internet searches for "suicide", its association with epidemiological data and insights for prevention programs.

BACKGROUND: Literature demonstrates that analysis of internet search data is a useful tool in predicting the occurrence of illnesses and health-related behaviors. The aim of the study was to quantitatively present the trends in Google searches for the keyword "suicide" and to analyze its correlation with the number of suicides in Poland. SUBJECTS AND METHODS: We used the Google Trends tool to compile data for years 2004-2016. Statistical analysis was performed for annual, monthly, daily and hourly data. Official data on suicide in Poland were obtained from the Central Statistical Office and the General Police Headquarters of Poland. RESULTS: A gradual decrease in Google Relative Search Volume of the keyword "suicide" was observed in years 2004-2014, despite the significant increase of suicide rate in Poland (R=-0.24). Reverse correlation was also found between regional suicide coefficients and search volume (R=-0.22). The highest search volumes were recorded in winter months, first days of the week and at night hours (p<0.001). CONCLUSIONS: Presented results may contribute to more effective suicide prevention programs. By specifying the time intervals in which searching suicide information is the highest, it will become easier get to individuals at risk.

Antipsychotic Medication Prescribing Trends in a Pediatric Population in Northern Poland 2008-2012.

OBJECTIVES: In recent years antipsychotics have been increasingly used in the population of children and adolescents. The objective of this article is to profile the use of antipsychotic medications in a pediatric population in Poland based on data from the Pomeranian region (Northern Poland). METHODS: The study was based on National Health Fund data about prescription drug reimbursement between 2008 and 2012. A patient database was created using ID to analyze specific patterns and information about individuals using antipsychotics. Percentage population indicators were calculated using official demographic reports. RESULTS: An increased number of overall prescriptions was observed since 2008, with a subsequent decline to its lowest number in 2012. The population with at least one antipsychotic-filled prescription per year has grown in the same time. The annual rate has increased from 0.26% to 0.31% of the general population between 0 and 17 years of age in the Pomeranian region. We observed an increasing number of females and the 0- to 4-year-old receiving antipsychotic prescriptions. The population share of prescribed first-generation antipsychotics exceeded the share of second-generation antipsychotics (SGAs). The use of SGAs increased from 38% to 44% of all prescriptions, during the observation period. The most frequently prescribed drugs were Risperidone (26.7%) and Chlorprothixene (21.7%). CONCLUSIONS: The study revealed that the prescribing patterns of antipsychotics increased in the Polish pediatric population and concerned more patients from the youngest group. The high prevalence of such early exposure to antipsychotics should focus more attention on drug safety in this population.

Predictors of poor outcome in patients with pulmonary arterial hypertension: A single center study.

OBJECTIVES: Pulmonary arterial hypertension (PAH) is a rare disorder with unfavorable prognosis despite implementation of specific PAH-oriented therapy. The aim of the study was to define predictors of poor prognosis in patients from one center treated according to the Polish National Health Fund program. PATIENTS AND METHODS: Forty-seven consecutive patients (30 women; aged 39±17 years) with PAH diagnosis were enrolled to the study. Clinical assessment, laboratory measurements, electrocardiogram, echocardiography, 6-minute walk test, 24-hour Holter monitoring, cardiopulmonary exercise test and microvolt T-wave alternans test were performed during routine visits. Eight patients died during 2.6±1.7 years follow-up. RESULTS: Parametrs which differentiated patients who died were brain natriuretic peptide (BNP) concentration ≥330 pg/mL (sensitivity 88%, specificity 92%, area under the ROC curve [AUC] 0.92); bilirubin concentration ≥1.2 mg/dL (sensitivity 88%, specificity 81%, AUC 0.85); right atrial area ≥21 cm2 (sensitivity 86%, specificity 69%, AUC 0.84), right ventricular (RV) dimension in the apical 4-chamber view ≥47 mm (sensitivity 86%, specificity 86%, AUC 0.85) and RV to left ventricular diastolic diameter ratio ≥1.5 (sensitivity 83%, specificity 84%; AUC 0.85). In multivariate analysis, independent predictors of mortality were higher BNP (p = 0.04) and bilirubin level (p = 0.03), higher right atrial area (p = 0.02) and lower tricuspid annular plane systolic excursion (p = 0.03). CONCLUSIONS: In PAH patients treated with specific PAH-oriented therapy right atrial enlargement, impaired right ventricular systolic function, as well as increased BNP and bilirubin concentration was associated with an increased mortality risk.

Acute Ischemic Stroke Hospital Admissions, Treatment, and Outcomes in Poland in 2009-2013.

INTRODUCTION: Ischemic stroke (IS) still constitutes a serious problem for public health worldwide. The data on its burden in Poland before 2009 is limited and came only from a few metropolitan areas. THE AIMS OF THE STUDY WERE: To assess temporal trends in the hospital admissions, treatment, and outcomes of IS in Poland in 2009-2013, to identify risk factors for IS mortality and to compare the results with other countries. METHODS: The data from the Polish Stroke Registry were analyzed. The data concerned all subjects hospitalized due to IS (classified according to the ICD10 classification as I63.0-I63.9) as primary diagnosis in Poland in 2009-2013. Temporal trends in treatment and outcome were analyzed. Hospital admissions rates as well as case fatality and 12-month mortality rates were calculated. RESULTS: Altogether, 360,556 patients (47.5% of males) were hospitalized due to IS in Poland in 2009-2013. The median of age was 75 years, IQR 18 (Women 78, IQR 14 vs. Men 70, IQR 17; p < 0.001). The hospital admissions age-standardized annual rate for IS in Poland in 2013 was 8% lower than in 2009 (169 vs. 157/100,000; p for trend < 0.001). In-hospital case fatality has slightly decreased (from 13.6% in 2009 to 12.9% in 2013; p for trend < 0.001). One-year posthospital mortality rate has not changed (19.3% in 2009 and 2013). The percentage of IS subjects treated with intravenous thrombolysis was low but increased from 1.7% in 2009 to 6.3% in 2013 (p for trend <0.001). CONCLUSION: Since 2009, Poland has had national epidemiological data on the hospital admissions, treatment, and outcomes in IS. The data indicate a slow improvement of in-hospital survival and suggest the need for better stroke prevention and further dissemination of reperfusion therapy.

Indoor Exposure to Volatile Organic Compounds in Children: Health Risk Assessment in the Context of Physiological Development.

Indoor air quality is strongly affected by the contamination of ambient air and that related to building and finishing materials and to human activity. Poor ventilation of closed spaces facilitates retention of greater quantity of pollutants. Infants and children are at particular risk of exposure to indoor air pollutants as they undergo rapid physiological and biochemical changes and demonstrate activity patterns unlike those in adults. Health risk assessment in children should be carried out with regard to children-specific factors, since these factors may constitute a source of errors. In this article we weigh up two different: Scenario 1 in which risk assessment was carried out in five age-groups (0-1, 2-3, 4-6, 7-11, and 12-16 years of age) and Scenario 2 encompassing only two age-groups (0-6 and 7-16 years of age). The findings indicate that data on carcinogenic and non-carcinogenic effects obtained by applying the second scenario were overestimated or averaged; either giving much reduced information that may lead to a false judgment on actual risk. This kind of fallacy is avoided when applying the age stratification into a greater number of groups for the health risk assessment in children.

Characterization of estrogenic and androgenic activity of phthalates by the XenoScreen YES/YAS in vitro assay.

The presented study investigates and compares the estrogenic and androgenic activities of commonly used diesters of phthalic acid (phthalates) using the XenoScreen YES/YAS assay. Phthalates are commonly used plasticizers in polymers dedicated for i.e. food and drug containers. Since phthalates are not chemically bonded to the polymer, they can leach or migrate from the polymer. Therefore, phthalates are identified as contaminants in a variety of consumer products. Investigation of estrogenic and androgenic activities of phthalates (DEP, DBP, BBP, DEHP and DINP) showed no significant effect of tested substances either on hERα or hAR receptors. Phthalates exhibited strong anti-estrogenic (IC50 for BBP=8.66µM, IC50 for DEHP=3.61µM and IC50 for DINP=0.065µM) and anti-androgenic (IC50 for BBP=5.30µM, IC50 for DEHP=2.87µM and IC50 for DINP=0.068µM) activities.

Low-density lipoprotein cholesterol and survival in pulmonary arterial hypertension.

Low-density lipoprotein cholesterol(LDL-C) is a well established metabolic marker of cardiovascular risk, however, its role in pulmonary arterial hypertension (PAH) has not been determined. Therefore we assessed whether LDL-C levels are altered in PAH patients, if they are associated with survival in this group and whether pulmonary hypertension (PH) reversal can influence LDL-C levels. Consecutive 46 PAH males and 94 females were age matched with a representative sample of 1168 males and 1245 females, respectively. Cox regression models were used to assess the association between LDL-C and mortality. The effect of PH reversal on LDL-C levels was assessed in 34 patients with chronic thromboembolic pulmonary hypertension (CTEPH) undergoing invasive treatment. LDL-C was lower in both PAH (2.6 ± 0.8 mmol/l) and CTEPH (2.7 ± 0.7 mmol/l) patients when compared to controls (3.2 ± 1.1 mmol/l, p < 0.001). In PAH patients lower LDL-C significantly predicted death (HR:0.44/1 mmol/l, 95%CI:0.26-0.74, p = 0.002) after a median follow-up time of 33(21-36) months. In the CTEPH group, LDL-C increased (from 2.6[2.1-3.2] to 4.0[2.8-4.9]mmol/l, p = 0.01) in patients with PH reversal but remained unchanged in other patients (2.4[2.2-2.7] vs 2.3[2.1-2.5]mmol/l, p = 0.51). We concluded that LDL-C level is low in patients with PAH and is associated with an increased risk of death. Reversal of PH increases LDL-C levels.

Quality of life and social support in patients with multiple sclerosis. / Jakosc zycia oraz wsparcie spoleczne u pacjentów ze stwardnieniem rozsianym.

OBJECTIVES: Quality of life and needforsocial support in persons diagnosed with multiple sclerosis (MS) are to a large extent determined by the degree of their disability. The aim of the study was to analyze an association between specific forms of MS, subjectively perceived quality of life and social support. METHODS: The study included subjects with established diagnosis of MS, treated at rehabilitation centers, hospitals and in a home setting, as well as the members of patient organizations. After being informed about objectives of the study, type of included tasks and way to complete them, each participant was handed out a set of questionnaires: Berlin Social Support Scales (Luszczynska, Kowalska, Schwarzer, Schulz), Quality of Life Questionnaire (WHOQOLBREF), as well as a survey developed specifically for the purposes of this project. The results were subjected to statistical analysis with STATA 12 package. RESULTS: The study included a total of 110 persons (67 women and 43 men). Quality of life overall, as well in physical, psychological, social relationships and environmental health domains, turned out to be particularly important in patients with primary-progressive MS. Irrespective of MS type, social support overall did not play a significant role on univariate analysis. However, subgroup analysis according to sex demonstrated that men with MS received social support four times less often than women. CONCLUSIONS: Quality of life in individuals with primary-progressive MS is significantly lower than in patients presenting with other types of this disease. Men with MS are more likely to present with worse scores for social support overall. They are less likely both to acknowledge the need for support and to realize the availability of support they actually need.