tailieunhanh - How to Display Data- P15

How to Display Data- P15: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. | 62 How to Display Data Table Self-reported birthweight kilograms by delivery type n 3178 women4 What kind of delivery Birthweight kg Mean SD n Forceps delivery 88 Ventouse vacuum extractor 209 Normal vaginal delivery 2190 Emergency caesarean section 426 Planned caesarean section 249 Vaginal breechdeliveny 16 Total 3A9 3146 first. The table has a title explaining what is being displayed and the columns and rows are clearly labelled. As with Table the sample size for each delivery type group is reported in the final column of the table as this improves the isgoodprartice toput the variables of most interest mthis tablr the mean and Sh t in thcfirsi aatacoiumnas they can be immhpiatsla cast pr tleVe i r assocthteO ceaupltibe l. In many stvdiet cgsneohsons ihenisdhbr ween diffesene oea example twd arsupsop patieo tsen anba ugaeaPnOerohttreataients ondthr outcomes coaiparedtietween rUase an example of a more tabla wihr dhseo 3 68 btnthwyight dho outcome twhcotogn ricravariabteo hr factor u. paritf Table Self-reported birthweight kg by delivery type andparity n 3176 women4 What kind of delivery Primiparous birthweight kg Multiparous birthweigh. rkg Mean SD n Mean SD n e 5 13 Emergency caesarean section e 299 127 Ventouse vacuum extractor 161 48 Normal vagina1 delivery 844 8 16-49 Planned caesarennnection 1 .65 70 179 Vaginal breech deliaery 7 9 Total . 459 614 Data in tables 63 and delivery type. The outcome birthweight is cross classified by parity and delivery type. In this example delivery is ordered by the combinedsample size for each delivery type. Tables formultipleoutcomemeasures The use of health-related quality of life HRQoL measures is becoming m in dtafal .