TAILIEUCHUNG - SKIN CANCERS – RISK FACTORS, PREVENTION AND THERAPY

For comparing Aussiedler incidence and mortality with the German/Saarland population, indirect standardization was used. Compared to the method of direct standardization, the indirect method is advantageous when the stratum-specific rates of one of the populations to be compared are based on small numbers. In this case one can use the more stable rates of the larger population for the indirect standardization, thus gaining robustness with regard to sampling variation (Breslow and Day, 1987). The standardized mortality ratio (SMR), and the standardized incidence ratio (SIR) are given by the observed number of events O (incident cases or number of deaths) divided by the number of events which one would. | SKIN CANCERS - RISK FACTORS PREVENTION And therapy Edited by Caterina AM La Porta Skin Cancers - Risk Factors Prevention and Therapy Edited by Caterina AM La Porta Published by InTech Janeza Trdine 9 51000 Rijeka Croatia Copyright 2011 InTech All chapters are Open Access distributed under the Creative Commons Attribution license which permits to copy distribute transmit and adapt the work in any medium so long as the original work is properly cited. After this work has been published by InTech authors have the right to republish it in whole or part in any publication of which they are the author and to make other personal use of the work. Any republication referencing or personal use of the work must explicitly identify the original source. As for readers this license allows users to download copy and build upon published chapters even for commercial purposes as long as the author and publisher are properly credited which ensures maximum dissemination and a wider impact of our publications. Notice Statements and opinions expressed in the chapters are these of the individual contributors and not necessarily those of the editors or publisher. No responsibility is accepted for the accuracy of information contained in the published chapters. The publisher assumes no responsibility for any damage or injury to persons or property arising out of the use of any materials instructions methods or ideas contained in the book. Publishing Process Manager Tajana Jevtic Technical Editor Teodora Smiljanic Cover Designer Roko Kerovec Image Copyright Velesh 2011. Used under license from First published October 2011 Printed in Croatia A free online edition of this book is available at Additional hard copies can be obtained from orders@ Skin Cancers - Risk Factors Prevention and Therapy Edited by Caterina AM La Porta p. cm. ISBN 978-953-307-722-2 ikrrr iJ OPEN ACCESS INI Cvn PUBLISHER INTECH open free online editions .

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