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Dealing with imprecise quantities is an important problem in scientific computation. Model parameters are known only approximately, typically in the form of probability density functions. Unfortunately there are currently no methods of taking uncertain parameters into account which would at the same time be easy to apply and highly accurate. An important(More)
The aim of the study is to verify the hypothesis that genetic polymorphisms are associated with the predisposition to all malignancies. Using as a model breast cancers from the homogenous Polish population (West Pomeranian region) after stratification of 977 patients by age at diagnosis (under 51 years and above 50 years) and by tumour pathology (ductal(More)
BACKGROUND Hepatitis B is a significant health burden in Poland with nosocomial transmission being the main source of infection. Therefore, HBV vaccination is widely recommended for those not covered by the national immunisation program. OBJECTIVE To assess the coverage and influencing determinants of HBV vaccination among adult patients attending GP(More)
To determine the vaccination coverage for HBV and the prevalence of anti-HBc, an anonymous sero-survey of surgical/gynecologic nurses from 16 randomly selected hospitals in West Pomerania, Poland, was conducted. Among the 403 participants of whom HBV vaccination had been indicated, the vaccination coverage was 100%. The anti-HBc prevalence was 16.4%; with(More)
To determine the immunisation coverage for HBV and the prevalence of HBsAg an anonymous serosurvey of consecutive adult surgical/gynaecologic patients presenting to 16 randomly selected hospitals in West Pomerania, Poland, was conducted. Immunisation rate was 60.4%, of these 69.7% had received the complete course of three doses; 65.2% were immunised at the(More)
UNLABELLED The aim of the study was to evaluate the nature and frequency of sharps injuries among doctors and nurses from the same surgical/gynecological wards and the prevalence of HBV/HCV/HIV infection. MATERIAL AND METHODS An anonymous cross-sectional sero-survey, with ELISA system used to detect anti-HBc, anti-HCV, anti-HIV, was conducted among 89(More)
OBJECTIVES To assess the prevalence of anti-hepatitis C virus (HCV) in surgical nurses and midwives, to compare the rate with other female groups (their patients from the same hospitals and blood donation candidates) in a cross-sectional serosurvey, and to evaluate the alleged risk factors for acquiring an occupational infection. METHODS Between February(More)
In 1999 it has been recognized that 3 BRCA1 abnormalities - 5382insC, C61G and 4153delA - constitute almost 90% of all germline mutations of this gene in Poland. Due to the above findings we started performing the cheap and quick large scale testing for BRCA1 mutations and, these days, we have almost 4,000 carriers diagnosed and under direct or indirect(More)
Immunization is an important and cost-effective public health intervention to protect the population from illness. In Poland, in addition to free of charge vaccines, listed in the national program on immunization, self-paid vaccinations for pneumococcal, meningococcal, rotavirus, varicella, influenza infections and combination vaccines are recommended. The(More)
We present algorithms for fast generation of short reducts which avoid building the discernibility matrix explicitly. We show how information obtained from this matrix can be obtained based only on the distributions of attribute values. Since the size of discernibility matrix is quadratic in the number of data records, not building the matrix explicitly(More)