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1、UnderstandingtheFundamentalsofEpidemiologyanevolvingtext___________VictorJ.Schoenbach,Ph.D.withWayneD.Rosamond,Ph.D.___________DepartmentofEpidemiologySchoolofPublicHealthUniversityofNorthCarolinaatChapelHillFall2000Edition©1999,2000VictorJ.SchoenbachUnlessotherwiseindicated,thet
2、extanddiagramsinthisworkbelongtothecopyrightownerabove.Forreprintpermission(royalty-freefornoncommercialusebynonprofit,accredited,educationalorganizations),pleasewriteto:VictorJ.Schoenbach,Ph.D.DepartmentofEpidemiologyUniversityofNorthCarolinaSchoolofPublicHealthChapelHill,NC2759
3、9-7400USAVictor_Schoenbach@unc.eduPermissiontoreprintmaterialcopyrightedbyothersandusedherebytheirpermissionmustbeobtaineddirectlyfromthem.August1999,2000ChapelHill,NorthCarolinaPrefaceIntroductoryepidemiologycoursesareoftenreferredtoas"methods"courses,andmanystudentscometothemho
4、pingtolearnthemethodsthathavemadeepidemiologysoimportant.Certainlymethodsareanessentialaspectofthefield,andthistextcoverstheusualcomplement.Butespeciallyforthenewcomer,thecriticalneedistolearnhowepidemiologiststhinkabouthealthandthefactorsthataffectit,andhowepidemiologistsapproac
5、hstudyingthem.Veryfewmethodsareuniquetoepidemiology."Epidemiologicthinking"isitsessence.Therefore,formethecentralobjectiveofanintroductorycoursehasbeentoexplaintheconceptsandperspectivesofthefield.Fornearly20yearsIhavehadtheprivilegeofteachingtheintroductoryepidemiologycoursefore
6、pidemiologymajorsattheUniversityofNorthCarolinaSchoolofPublicHealthandthespecialpleasurethatderivesfromteachingstudentswhohavesoughtepidemiologyoutratherthancometolearnitonlyasaschoolrequirement.Ihavealsohadthehonorofbeingentrustedbymycolleagueswiththeresponsibilityforintroducing
7、ourstudentstoepidemiologicconceptsandmethods.OvertheyearsIhavewrittenoutextensivelecturenotes,initiallyinresponsetorequestsfromcourseparticipantsandsubsequentlytodevelopmyownunderstanding.Notallcourseparticipantshaveappreciatedthem,butIhavereceivedsufficientpositivefeedbackandexp
8、ressionsofinterestfromgraduateswhohavego
