Statistics Toolkit

This concise book will help you to interpret the statistical evidence provided by quantitative studies and to plan how to work with data in your own clinical research. Following the successful format of the Toolkit series, Statistics Toolkit guides the reader through statistical concepts using flowcharts, diagrams and real life examples to reflect concepts in a simple and practical manner.Sections include: Clear explanation of basic concepts in the context of clinical research Demonstration of how data are described, displayed and interpreted in different formats Practical glossary and key to the symbols used in statistics and a discussion of the software toolsThe book offers a handy, quick reference that has an easy-to-follow structure throughout, making it ideal for health care professionals and students. Cover......Page 1 Title......Page 4 Copyright......Page 5 Contents......Page 6 Introduction......Page 8 Data: describing and displaying......Page 10 Probability and confi dence intervals......Page 22 Hypothesis testing......Page 28 Choosing which measure and test to use......Page 32 Randomised controlled trials: mean, median,mode, RD, NNT, Mann–Whitney and log rank tests......Page 35 Systematic reviews 1: odds, odds ratio, heterogeneity, funnel plots......Page 43 Case-control studies: odds ratios, logistic regression......Page 53 Questionnaire studies 1: weighted mean frequency, nonparametric tests......Page 60 Questionnaire studies 2: inter-rater agreement......Page 66 Cohort studies: prevalence, incidence, risk, survival, mortality rate, association, prognostic factor......Page 73 Systematic reviews 2: Cohort study odds ratios and relative risk......Page 77 Diagnostic tests: sensitivity, specificity, likelihood ratios, ROC curves, pre- and post-test odds, pre- and post-test probability......Page 80 Scale validation: correlation......Page 88 Statistical toolkit: Glossary......Page 96 Software for data management and statistical analysis......Page 110 References......Page 115 Index......Page 116 Commonly used symbols......Page 122 "This book will help you to interpret the statistical evidence provided by quantitative studies and to plan how to work with data in your own clinical research. Following the successful format of the Toolkit series, Statistics Toolkit guides the reader through statistical concepts using flowcharts, diagrams and real life examples to reflect concepts in a simple and practical manner." "The book offers a handy, quick reference that has an easy-to-follow structure throughout, making it ideal for health care professionals and students."--Jacket Data: describing and displaying Probability and confidence intervals Hypothesis testing Choosing which measure and test to use Randomised controlled trials Systematic review Case control studies Questionnaire studies Questionnaire studies 2 Cohort studies Systematic reviews and prognostic studies Diagnostic tests Scale validation Statistical toolkit glossary Software for data management and statistical analysis.