Summary-SafetyofAnaesthesiaOverviewedthe3papersandIfoundtheyarerelatedtothecommontopicthatthesafetyofanaesthesia.Thefirstpaperdiscussedtheissueinthetermofdrugconfirmationmethods,whichcomparedsecond-persontoelectronicbar-codinginordertofindtheadvantagesanddisadvantagesofeach.Howevertheothertwowerefromthesideofpatientsanddiscussedeffectsofanaesthesiatopatientsbycomparingdataonhealthconditionafterandbeforeanaesthesia.Theformeronepaidmoreattentiontotheprocessofconfirmationofdrugadministrationtoreducedrugerrorsasmanyaspossible.Thenthelasttwofocusedtheroleofdrugitselftopatient.Inmyopinion,firstly,thecorepartofthethreepapersisthathowthedatawascollectedwhichisreallyimportanttousasthatmayindicatewhatwecandoandwhatweneeddointhedomainofHIS.BesidesIaminterestedinwhatdatatypetheyuseandhowtodealwiththesekindsofdata.Forexample,inthefirstpaperdatacollectedfromthediscussionofobserver’snotesandinvestigator’sreflectiveanddifferentdiariesbetweenparticipantsandanaesthetistswhoaremotivatedinthisstudyinordertoeliminatesubjectivelyinfluencestostudyitself.Inthethreepapers,thethirdoneusedthelargestnumberofdataover10years,whichwashugeamountofdataandwascollectedfrominformationsystemofhospital,CIHIandOHIP.Itseemedthatitwasreallydifficulttodealwithsomanydatatypesandsomanypotentialvariables.Howeverthesecondpapergaveusagoodexampleonhowtodealwithpotentialvariables,whichIthinkisveryuseful.Becausewemaycollectvariousdatainourfutureresearchesanditisinevitabletofindappropriatemethodstogetresultsweneedfromhugequantitydata.Ofcourse,thenextpartistofindresultsfromthecomplicateddatabyapplyinganalysismethodssuchaslogisticregressionanalysis,Mann-WhitneyUtestandχ2testandsoon.Stepwisethefirstresulttheygotwouldbeadjustedbypotentialvariables.Third,aftercomplicatedanalysis,everypapergotconclusions.Forthefirstpaper,therewassignificantimpactonreducingdrugerrorsduringanaesthesia,butmoreresearchshouldbedonetoculturalchange.Toelectronicconfirmation,althoughitwasmorefeasible,moreattentionshouldbepaidintoopera