How to Display Data- P2:The best method to convey a message from a piece of research in health is via a fi gure. The best advice that a statistician can give a researcher is to fi rst plot the data. Despite this, conventional statistics textbooks give only brief details on how to draw fi gures and display data. | Contents Preface vii 1 Introduction to data display 1 2 How to display data badly 9 3 Displaying univariate categorical data 1 7 4 Displaying quantitative data 29 5 Displaying the relationship between two continuou s variables 43 6 Data in tablvs 59 7 Reporting study results 66 8 Time series plots and survival curves 90 9 Displaying results in presentations 98 Index 107 v This page intentionally left blank Preface The best method to convey a message from a piece of research in health is via a figure. The best advice that a statistician can give a researcher is to first plot the data. Despite this conventional statistics textbooks give only brief details on how todraw hgures and purposeof thisbook is to give advtct o tithe besd maehodstoditptaydaae c dr ari setidtom a variety have tesedSomakr thebook concsse and easy to duta baOlyonedunveay r an ly givt mttleading messages or glle mcotivaigdiitiitdhsjatidwe Ssy la trghliad thotvcoo -sumers of datthoveSo Uif aware nflVase paobleme. OUe navesisomclngsd advice on ditpiaysnoduUr for poeters andlalkti Reseaachaaawhowanttodlsdtey tie aesuhsod tind- stndies io fidurbsot tables partictVaaly Sor delbdaaOon io a journal will Pngthis Uspats ta li Readers of tUe a s suls litarsSurUiWTgwish iocastically uppaaise a piece of work will find urafiot tiason s who have to dalivea rs fat or g 001 1060 psesantetion sboulO also finC good advice an d gay a iai atrttulra. We woulbhks to tOankMary Barks and Simone DudoiakbtomOioidage foa theia pabtnce ma rgvlat. T 7 00 Stephen J. Walters Michael J. Campbell Medical Statistics Group ScHARR Shefdeld June aaba .