• Haem iron intake and risk of lung cancer in the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort.

      Ward, Heather A; Whitman, Julia; Muller, David C; Johansson, Mattias; Jakszyn, Paula; Weiderpass, Elisabete; Palli, Domenico; Fanidi, Anouar; Vermeulen, Roel; Tjønneland, Anne; Hansen, Louise; Dahm, Christina C; Overvad, Kim; Severi, Gianluca; Boutron-Ruault, Marie-Christine; Affret, Aurélie; Kaaks, Rudolf; Fortner, Renee; Boeing, Heiner; Trichopoulou, Antonia; La Vecchia, Carlo; Kotanidou, Anastasia; Berrino, Franco; Krogh, Vittorio; Tumino, Rosario; Ricceri, Fulvio; Panico, Salvatore; Bueno-de-Mesquita, H Bas; Peeters, Petra H; Nøst, Therese Haugdahl; Sandanger, Torkjel M; Quirós, Jose Ramón; Agudo, Antonio; Rodríguez-Barranco, Miguel; Larrañaga, Nerea; Huerta, Jose Maria; Ardanaz, Eva; Drake, Isabel; Brunnström, Hans; Johansson, Mikael; Grankvist, Kjell; Travis, Ruth C; Freisling, Heinz; Stepien, Magdalena; Merritt, Melissa A; Riboli, Elio; Cross, Amanda J (2018-10-18)
      Epidemiological studies suggest that haem iron, which is found predominantly in red meat and increases endogenous formation of carcinogenic N-nitroso compounds, may be positively associated with lung cancer. The objective was to examine the relationship between haem iron intake and lung cancer risk using detailed smoking history data and serum cotinine to control for potential confounding.
    • Haemophilus is overrepresented in the nasopharynx of infants hospitalized with RSV infection and associated with increased viral load and enhanced mucosal CXCL8 responses.

      Ederveen, Thomas H A; Ferwerda, Gerben; Ahout, Inge M; Vissers, Marloes; de Groot, Ronald; Boekhorst, Jos; Timmerman, Harro M; Huynen, Martijn A; van Hijum, Sacha A F T; de Jonge, Marien I (2018-01-11)
      While almost all infants are infected with respiratory syncytial virus (RSV) before the age of 2 years, only a small percentage develops severe disease. Previous studies suggest that the nasopharyngeal microbiome affects disease development. We therefore studied the effect of the nasopharyngeal microbiome on viral load and mucosal cytokine responses, two important factors influencing the pathophysiology of RSV disease. To determine the relation between (i) the microbiome of the upper respiratory tract, (ii) viral load, and (iii) host mucosal inflammation during an RSV infection, nasopharyngeal microbiota profiles of RSV infected infants (< 6 months) with different levels of disease severity and age-matched healthy controls were determined by 16S rRNA marker gene sequencing. The viral load was measured using qPCR. Nasopharyngeal CCL5, CXCL10, MMP9, IL6, and CXCL8 levels were determined with ELISA.
    • Hand rub consumption and hand hygiene compliance are not indicators of pathogen transmission in intensive care units.

      Eckmanns, T; Schwab, F; Bessert, J; Wettstein, R; Behnke, M; Grundmann, Hajo; Rüden, H; Gastmeier, P (2006-08-01)
      The objective of this study was to investigate whether nosocomial infection (NI) rates, hand hygiene compliance rates and the amount of alcohol-based hand rub used for hand disinfection are useful indicators of pathogen transmission in intensive care units (ICUs), and whether they could be helpful in identifying infection control problems. All isolates of 10 of the most frequent pathogens from patients who were hospitalized in an ICU for >48 h were genotyped to identify transmission episodes in five ICUs. The incidence of transmission was correlated with hand hygiene compliance, hand rub consumption and NI rates. The incidence of transmission episodes varied between 2.8 and 6.8 in the five ICUs. The NI rate was 8.6-22.5 per 1000 patient-days, hand hygiene compliance was 30-47% and hand rub consumption was 57-102 L per 1000 patient-days. There was no correlation between the incidence of transmission episodes and hand rub consumption or hand hygiene compliance. The correlation between transmission rates and NI rates was 0.4 (P = 0.5), and with the exclusion of one ICU, it was 1 (P < 0.01). The incidence of NI is a relatively good indicator for the identification of pathogen transmissions, but hand rub consumption and hand hygiene compliance, at least with the relatively low level of compliance found in this study, are not indicators of pathogen transmission.
    • 'Happy the man, who, studying nature's laws, Thro' known effects can trace the secret cause.' Do we have enough pieces to solve the pyrazinamide puzzle?

      Anthony, R M; den Hertog, A L; van Soolingen, D (2018-03-08)
      A low pH was assumed to be required for the activity of pyrazinoic acid (the active form of pyrazinamide) against Mycobacterium tuberculosis, but recently activity has been demonstrated at neutral pH. Renewed interest in pyrazinamide has led to an increasing number of potential targets and the suspicion that pyrazinamide is a 'dirty drug'. However, it is our opinion that the recent demonstration that pyrazinoic acid is active against PanD provides an alternative explanation for the secret of pyrazinamide's unusual activity. In this article we propose that PanD is the primary target of pyrazinoic acid but expression of pyrazinoic acid susceptibility requires an intact stress response. As the mycobacterial stress response requires the interaction of a number of genes, disruption of any could result in an inability to enter the susceptible phenotype. We believe this model can explain most of the recent observations of the seemingly diverse spectrum of activity of pyrazinamide.
    • Harmonization of PCR-based detection of intestinal pathogens: experiences from the Dutch external quality assessment scheme on molecular diagnosis of protozoa in stool samples.

      Schuurs, Theo A; Koelewijn, Rob; Brienen, Eric A T; Kortbeek, Titia; Mank, Theo G; Mulder, Bert; Stelma, Foekje F; van Lieshout, Lisette; van Hellemond, Jaap J (2018-02-16)
      Real-time PCR methods are increasingly used in routine patient care settings not only to determine the presence or absence of pathogens in patient materials, but also to obtain semiquantitative results to estimate the pathogen load. However, it is so far unknown how well these methods are harmonized among different laboratories.
    • Harvesting the wisdom of the crowd: using online ratings to explore care experiences in regions.

      Hendrikx, Roy J P; Spreeuwenberg, Marieke D; Drewes, Hanneke W; Struijs, Jeroen N; Ruwaard, Dirk; Baan, Caroline A (2018-10-20)
      Regional population health management (PHM) initiatives need an understanding of regional patient experiences to improve their services. Websites that gather patient ratings have become common and could be a helpful tool in this effort. Therefore, this study explores whether unsolicited online ratings can provide insight into (differences in) patient's experiences at a (regional) population level.
    • Hazard classification of chemicals inducing haemolytic anaemia: An EU regulatory perspective.

      Muller, Andre; Jacobsen, Helene; Healy, Edel; McMickan, Sinead; Istace, Fréderique; Blaude, Marie-Noëlle; Howden, Peter; Fleig, Helmut; Schulte, Agnes (2006-08-01)
      Haemolytic anaemia is often induced following prolonged exposure to chemical substances. Currently, under EU Council Directive 67/548/EEC, substances which induce such effects are classified as dangerous and assigned the risk phrase R48 'Danger of serious damage to health by prolonged exposure.' Whilst the general classification criteria for this endpoint are outlined in Annex VI of this Directive, they do not provide specific information to assess haemolytic anaemia. This review produced by the EU Working Group on Haemolytic Anaemia provides a toxicological assessment of haemolytic anaemia and proposes criteria that can be used in the assessment for classification of substances which induce such effects. An overview of the primary and secondary effects of haemolytic anaemia which can occur in rodent repeated dose toxicity studies is given. A detailed analysis of the toxicological significance of such effects is then performed and correlated with the general classification criteria used for this endpoint. This review intends to give guidance when carrying out an assessment for classification for this endpoint and to allow for better transparency in the decision-making process on when to classify based on the presence of haemolytic anaemia in repeated dose toxicity studies. The extended classification criteria for haemolytic anaemia outlined in this review were accepted by the EU Commission Working Group on the Classification and Labelling of Dangerous Substances in September 2004.
    • Head skeleton malformations in zebrafish (Danio rerio) to assess adverse effects of mixtures of compounds.

      Staal, Yvonne C M; Meijer, Jeroen; van der Kris, Remco J C; de Bruijn, Annamaria C; Boersma, Anke Y; Gremmer, Eric R; Zwart, Edwin P; Beekhof, Piet K; Slob, Wout; van der Ven, Leo T M (2018-10-04)
      The EU-EuroMix project adopted the strategy of the European Food Safety Authority (EFSA) for cumulative risk assessment, which limits the number of chemicals to consider in a mixture to those that induce a specific toxicological phenotype. These so-called cumulative assessment groups (CAGs) are refined at several levels, including the target organ and specific phenotype. Here, we explore the zebrafish embryo as a test model for quantitative evaluation in one such CAG, skeletal malformations, through exposure to test compounds 0-120 hpf and alcian blue cartilage staining at 120 hpf, focusing on the head skeleton. Reference compounds cyproconazole, flusilazole, metam, and thiram induced distinctive phenotypes in the head skeleton between the triazoles and dithiocarbamates. Of many evaluated parameters, the Meckel's-palatoquadrate (M-PQ) angle was selected for further assessment, based on the best combination of a small confidence interval, an intermediate maximal effect size and a gentle slope of the dose-response curve with cyproconazole and metam. Additional test compounds included in the CAG skeletal malformations database were tested for M-PQ effects, and this set was supplemented with compounds associated with craniofacial malformations or cleft palate to accommodate otherwise organized databases. This additional set included hexaconazole, all-trans-retinoic acid, AM580, CD3254, maneb, pyrimethanil, imidacloprid, pirimiphos-methyl, 2,4-dinitrophenol, 5-fluorouracil, 17alpha-ethynylestradiol (EE2), ethanol, 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), PCB 126, methylmercury, boric acid, and MEHP. Most of these compounds produced a dose-response for M-PQ effects. Application of the assay in mixture testing was provided by combined exposure to cyproconazole and TCDD through the isobole method, supporting that in this case the combined effect can be modeled through concentration addition.
    • Health and Economic Impact of a Tender-Based, Sex-Neutral Human Papillomavirus 16/18 Vaccination Program in the Netherlands.

      Qendri, Venetia; Bogaards, Johannes A; Berkhof, Johannes (2017-07-15)
      Uptake of human papillomavirus (HPV) vaccine among girls in the Dutch immunization program has plateaued at around 60%. Vaccinating boys may be an appealing complementary strategy for the prevention of HPV-related diseases, especially since tender negotiations and reduced dosing schemes have driven down the cost of vaccination.
    • Health assessments for health governance—concepts and methodologies

      Fehr, Rainer; Alexanderson, Kristina; Favaretti, Carlo; de Jong, Judith; La Torre, Giuseppe; Lim, Tek-Ang; Martin-Olmedo, Piedad; Mekel, Odile C L; Michelsen, Kai; Rosenkötter, Nicole; Verschuuren, Marieke; de Waure, Chiara; Zeegers Paget, Dineke (2017-08)
    • Health care costs in the last year of life--the Dutch experience.

      Polder, Johan J; Barendregt, Jan J; Oers, Hans van (2006-10-01)
      Health expenditure depends heavily on age. Common wisdom is that the age pattern is dominated by costs in the last year of life. Knowledge about these costs is important for the debate on the future development of health expenditure. According to the 'red herring' argument traditional projection methods overestimate the influence of ageing because improvements in life expectancy will postpone rather than raise health expenditure. This paper has four objectives: (1) to estimate health care costs in the last year of life in the Netherlands; (2) to describe age patterns and differences between causes of death for men and women; (3) to compare cost profiles of decedents and survivors; and (4) to use these figures in projections of future health expenditure. We used health insurance data of 2.1 million persons (13% of the Dutch population), linked at the individual level with data on the use of home care and nursing homes and causes of death in 1999. On average, health care costs amounted to 1100 Euro per person. Costs per decedent were 13.5 times higher and approximated 14,906 Euro in the last year of life. Most costs related to hospital care (54%) and nursing home care (19%). Among the major causes of death, costs were highest for cancer (19,000 Euro) and lowest for myocardial infarctions (8068 Euro). Between the other causes of death, however, cost differences were rather limited. On average costs for the younger decedents were higher than for people who died at higher ages. Ten per cent of total health expenditure was associated with the health care use of people in their last year of life. Increasing longevity will result in higher costs because people live longer. The decline of costs in the last year of life with increasing age will have a moderate lowering effect. Our projection demonstrated a 10% decline in the growth rate of future health expenditure compared to conventional projection methods.
    • Health impact assessment of a skin sensitizer: Analysis of potential policy measures aimed at reducing geraniol concentrations in personal care products and household cleaning products.

      Jongeneel, W P; Delmaar, J E; Bokkers, B G H (2018-09)
      A methodology to assess the health impact of skin sensitizers is introduced, which consists of the comparison of the probabilistic aggregated exposure with a probabilistic (individual) human sensitization or elicitation induction dose. The health impact of potential policy measures aimed at reducing the concentration of a fragrance allergen, geraniol, in consumer products is analysed in a simulated population derived from multiple product use surveys. Our analysis shows that current dermal exposure to geraniol from personal care and household cleaning products lead to new cases of contact allergy and induce clinical symptoms for those already sensitized. We estimate that this exposure results yearly in 34 new cases of geraniol contact allergy per million consumers in Western and Northern Europe, mainly due to exposure to household cleaning products. About twice as many consumers (60 per million) are projected to suffer from clinical symptoms due to re-exposure to geraniol. Policy measures restricting geraniol concentrations to <0.01% will noticeably reduce new cases of sensitization and decrease the number of people with clinical symptoms as well as the frequency of occurrence of these clinical symptoms. The estimated numbers should be interpreted with caution and provide only a rough indication of the health impact.
    • Health literacy among older adults is associated with their 10-years' cognitive functioning and decline - the Doetinchem Cohort Study.

      Geboers, Bas; Uiters, Ellen; Reijneveld, Sijmen A; Jansen, Carel J M; Almansa, Josué; Nooyens, Astrid C J; Verschuren, W M Monique; de Winter, Andrea F; Picavet, H Susan J (2018-03-20)
      Many older adults have low levels of health literacy which affects their ability to participate optimally in healthcare. It is unclear how cognitive decline contributes to health literacy. To study this, longitudinal data are needed. The aim of this study was therefore to assess the associations of cognitive functioning and 10-years' cognitive decline with health literacy in older adults.
    • Health literacy skills for informed decision making in colorectal cancer screening: Perceptions of screening invitees and experts.

      Woudstra, Anke J; Timmermans, Daniëlle R M; Uiters, Ellen; Dekker, Evelien; Smets, Ellen M A; Fransen, Mirjam P (2017-12-20)
      The process of informed decision making (IDM) requires an adequate level of health literacy. To ensure that all individuals have equal opportunity to make an informed decision in colorectal cancer (CRC) screening, it is essential to gain more insight into which health literacy skills are needed for IDM. Our aims were (i) to explore how individuals make a decision about CRC screening and (ii) to explore which skills are needed for IDM in CRC screening and (iii) to integrate these findings within a conceptual framework.
    • The health of Antillean migrants in the Netherlands: a comparison with the health of non-migrants in both the countries of origin and destination.

      Verstraeten, Soraya P A; van den Brink, Carolien L; Mackenbach, Johan P; van Oers, Hans A M (2018-04-09)
      This article examines risk factor and health differences between Antillean migrants in the Netherlands and Antillean and Dutch non-migrants, and relates these findings to four commonly used explanations for migrant health disparities.
    • Health Risks Awareness of Electronic Waste Workers in the Informal Sector in Nigeria.

      Ohajinwa, Chimere M; Van Bodegom, Peter M; Vijver, Martina G; Peijnenburg, Willie J G M (2017-08-13)
      Insight into the health risk awareness levels of e-waste workers is important as it may offer opportunities for better e-waste recycling management strategies to reduce the health effects of informal e-waste recycling. Therefore, this study assessed the knowledge, attitude, and practices associated with occupational health risk awareness of e-waste workers compared with a control group (butchers) in the informal sector in Nigeria. A cross-sectional study was used to assess health risk awareness of 279 e-waste workers (repairers and dismantlers) and 221 butchers from the informal sector in three locations in Nigeria in 2015. A questionnaire was used to obtain information on socio-demographic backgrounds, occupational history, knowledge, attitude, and work practices. The data was analysed using Analysis of Variance. The three job designations had significantly different knowledge, attitude, and practice mean scores (p = 0.000), with butchers consistently having the highest mean scores. Only 43% of e-waste workers could mention one or more Personal Protective Equipment needed for their job compared with 70% of the butchers. The health risk awareness level of the e-waste workers was significantly lower compared with their counterparts in the same informal sector. A positive correlation existed between the workers' knowledge and their attitude and practice. Therefore, increasing the workers' knowledge may decrease risky practices.
    • Health status in Europe: comparison of 24 urban areas to the corresponding 10 countries (EURO-URHIS 2).

      Koster, E M; de Gelder, R; Di Nardo, F; Williams, G; Harrison, A; van Buren, L P; Lyshol, H; Patterson, L; Birt, C A; Higgerson, J; Achterberg, P W; Verma, A; van Ameijden, E J C (2017-05-01)
      : In Europe, over 70% of the population live in urban areas (UAs). Most international comparative health research is done using national level data, as reliable and comparable urban data are often unavailable or difficult to access. This study aims to investigate whether population health is different in UAs compared with their corresponding countries. : Routinely available health-related data were collected by the EURO-URHIS 2 project, for 10 European countries and for 24 UAs within those countries. National and UA level data for 11 health indicators were compared through the calculation of relative difference, and geographical patterns within Europe were investigated using the Mann Whitney U test. Linear regression modelling was used to adjust for population density, gross domestic product and urbanicity. : In general, the urban population in Eastern Europe is less healthy than the Western European urban population. However, people in Eastern Europe have significantly better broad health outcomes in UAs as compared with the corresponding country as a whole, whereas people in Western Europe have generally worse broader health outcomes in UAs. : For most European countries and UAs that were investigated, the national level health status data does not correspond with the health status at UA level. In order to identify health problems in UAs and to provide information for local health policy, health monitoring and international benchmarking should also be conducted at the local level.
    • Health system outcomes and determinants amenable to public health in industrialized countries: a pooled, cross-sectional time series analysis

      Arah, Onyebuchi A; Westert, Gert P; Delnoij, Diana M; Klazinga, Niek S (BMC, 2005-08-02)
      Background Few studies have tried to assess the combined cross-sectional and temporal contributions of a more comprehensive set of amenable factors to population health outcomes for wealthy countries during the last 30 years of the 20th century. We assessed the overall ecological associations between mortality and factors amenable to public health. These amenable factors included addictive and nutritional lifestyle, air quality, public health spending, healthcare coverage, and immunizations. Methods We used a pooled cross-sectional, time series analysis with corrected fixed effects regression models in an ecological design involving eighteen member countries of the Organisation for Economic Cooperation and Development during the period 1970 to 1999. Results Alcohol, tobacco, and fat consumption, and sometimes, air pollution were significantly associated with higher all-cause mortality and premature death. Immunizations, health care coverage, fruit/vegetable and protein consumption, and collective health expenditure had negative effects on mortality and premature death, even after controlling for the elderly, density of practicing physicians, doctor visits and per capita GDP. However, tobacco, air pollution, and fruit/vegetable intake were sometimes sensitive to adjustments. Conclusion Mortality and premature deaths could be improved by focusing on factors that are amenable to public health policies. Tackling these issues should be reflected in the ongoing assessments of health system performance.
    • Health-related quality of life and mental health problems after a disaster: Are chronically ill survivors more vulnerable to health problems?

      Berg, Bellis van den; Velden, Peter G van der; Yzermans, C Joris; Stellato, Rebecca K; Grievink, Linda (2006-12-01)
      Studies have shown that the chronically ill are at higher risk for reduced health-related quality of life (HRQL) and for mental health problems. A combination with traumatic events might increase this risk. This longitudinal study among 1216 survivors of a disaster examines whether chronically ill survivors had a different course of HRQL and mental health problems compared to survivors without chronic diseases. HRQL and mental health problems were measured 3 weeks, 18 months and 4 years post-disaster. Data on pre-disaster chronic diseases was obtained from the electronic medical records of general practitioners. Random coefficient analyses showed significant interaction effects for social functioning, bodily pain and emotional role limitations at T2 only. Chronically ill survivors did not consistently have a different course of general health, physical role limitations, and mental health problems. In conclusion, chronic diseases were not an important risk factor for impaired HRQL and mental health problems among survivors.