Opis: Veterinary Epidemiology - Michael Thrusfield

This successful book, now in its third edition, continues to provide a comprehensive introduction to the role of epidemiology in veterinary medicine. Since the publication of the second edition there has been considerable expansion in the application of veterinary epidemiology: more quantitative methods are available, challenges such as the epidemic of foot-and-mouth disease in Europe in 2001 have required epidemiological investigation, and epidemiological analyses have taken on further importance with the emergence of evidence-based veterinary medicine. In this edition: * Completely revised and expanded chapters; * Increased attention given to the principles and concepts of epidemiology, surveillance, and diagnostic-test validation and performance; * Many examples are drawn from both large and small animal medicine, and from the developing as well as the developed world * This paperback edition includes a new section on risk analysis. Veterinary Epidemiology is an invaluable reference source for veterinary general practitioners, government veterinarians, agricultural economists and members of other disciplines interested in animal disease. It will also be essential reading for undergraduate and intermediate-level postgraduate students of epidemiology.From the preface to the first edition; From the preface to the second edition; Preface to the third edition; The development of veterinary medicine; The scope of epidemiology; Causality; Describing disease occurrence; Determinants of disease; The transmission and maintenance of infection; The ecology of disease; Patterns of disease; The nature of data; Surveillance; Data collection and management; Presenting numerical data; Surveys; Demonstrating association; Observational studies; Clinical trials; Diagnostic testing; Comparative epidemiology; Modelling; The economics of disease; Health schemes; The control and eradication of disease; General reading; Appendices. Appendix I: Glossary of terms. Appendix II: Basic mathematical notation and terms. Appendix III: Some computer software. Appendix IV: Veterinary epidemiology on the Internet. Appendix V: Student's t-distribution. Appendix VI: Multipliers used in the construction of confidence intervals based on the Normal distribution, for selected levels of confidence. Appendix VII: Values of exact 95% confidence limits for proportions. Appendix VIII: Values from the Poisson distribution for calculating 90%, 95% and 99% confidence intervals for observed numbers from 0 to 100. Appendix IX: The Chi-squared distribution. Appendix X: Technique for selecting a simple random sample. Appendix XI: Sample sizes. Appendix XII: The probability of detecting a small number of cases in a population. Appendix XIII: The probability of failure to detect cases in a population. Appendix XIV: Sample sizes required for detecting disease with probability, pmin, and threshold number of positives (in brackets) (probability of incorrectly concluding that a healthy population is diseased [in square brackets]). Appendix XV: Probabilities associated with the upper tail of the Normal distribution. Appendix XVI: Lower- and upper-tail probabilities for WX, the Wilcoxon-Mann-. Whitney rank-sum statistic. Appendix XVII: Critical values of T+ for the Wilcoxon signed ranks test. Appendix XVIII: Values of K for calculating 95% confidence intervals for the difference. between population medians fore two independent samples. Appendix XIX: Values of K for calculating 95% confidence intervals for the difference between population medians fore two related samples. Appendix XX: Common logarithms (log10) of factorials of the integers 1-999. Appendix XXI: The correlation coefficient. Appendix XXII: Some veterinary observational studies. Appendix XXIII: The variance-ratio (F) distribution. References. Index

Szczegóły: Veterinary Epidemiology - Michael Thrusfield

Tytuł: Veterinary Epidemiology
Autor: Michael Thrusfield
Producent: Blackwell Science
ISBN: 9781405156271
Rok produkcji: 2007
Ilość stron: 624
Oprawa: Miękka
Waga: 1.57 kg

Recenzje: Veterinary Epidemiology - Michael Thrusfield