Maciej Jaworski

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The International Society for Clinical Densitometry Official Revised Positions on reporting of densitometry results in children represent current expert recommendations to assist health care providers determine which skeletal sites should be measured, which, if any, adjustments should be made, reference databases to be used, and the elements to include in a(More)
In mining data streams the most popular tool is the Hoeffding tree algorithm. It uses the Hoeffding's bound to determine the smallest number of examples needed at a node to select a splitting attribute. In the literature the same Hoeffding's bound was used for any evaluation function (heuristic measure), e.g., information gain or Gini index. In this paper,(More)
Quantitative ultrasound of the heel captures heel bone properties that independently predict fracture risk and, with bone mineral density (BMD) assessed by X-ray (DXA), may be convenient alternatives for evaluating osteoporosis and fracture risk. We performed a meta-analysis of genome-wide association (GWA) studies to assess the genetic determinants of heel(More)
The Shouldice method and other tissue-based techniques are still acknowledged to be acceptable for primary inguinal hernia repair according to the European Hernia Society guidelines. Desarda’s technique, presented in 2001, is an original hernia repair method using an undetached strip of external oblique aponeurosis. This randomized trial compared outcomes(More)
BACKGROUND Wide-necked intracranial aneurysms have been a challenge for endovascular techniques. With the advent of adjunctive devices such as balloons or stents, recanalisation rates have decreased secondary to better packing. PURPOSE The purpose of this registry was to evaluate the safety and effectiveness of the new Low-profiled Visualized Intraluminal(More)
BACKGROUND Bone fractures generate significant social costs, particularly in highly developed countries. This study was aimed at defining the number of hip fractures in Poland and evaluating absolute risk of fractures of this type within a period of 10 years and to the end of life. MATERIAL/METHODS Figures concerning hip fractures in the Mazowsze Province(More)
Decision trees are the commonly applied tools in the task of data stream classification. The most critical point in decision tree construction algorithm is the choice of the splitting attribute. In majority of algorithms existing in literature the splitting criterion is based on statistical bounds derived for split measure functions. In this paper we(More)
Since the Hoeffding tree algorithm was proposed in the literature, decision trees became one of the most popular tools for mining data streams. The key point of constructing the decision tree is to determine the best attribute to split the considered node. Several methods to solve this problem were presented so far. However, they are either wrongly(More)
INTRODUCTION Inadequate calcium intake is a recognized osteoporosis risk factor. The aim of the study was to estimate calcium intake in women in the Łódż population, the influence of calcium intake on bone mineral density (BMD) and fracture incidence, as well as the relationship between calcium intake and age. MATERIAL AND METHODS This cross-sectional(More)
BACKGROUND High prevalence of vitamin D deficiency in pregnancy is recorded. AIM To establish determinants of postpartum 25-hydroxyvitamin D (25(OH)D) levels on mothers and offspring. METHODS 25(OH)D level was measured in cord blood and maternal blood collected ≤3 weeks postpartum. Maternal socioeconomic status, vitamin D intake, sun exposure during(More)