醫(yī)學(xué)統(tǒng)計(jì)學(xué)ppt英文課件CH05 description of categorical data.ppt

醫(yī)學(xué)統(tǒng)計(jì)學(xué)ppt英文課件CH05 description of categorical data.ppt

ID:56972756

大小:241.50 KB

頁數(shù):36頁

時(shí)間:2020-07-25

醫(yī)學(xué)統(tǒng)計(jì)學(xué)ppt英文課件CH05 description of categorical data.ppt_第1頁
醫(yī)學(xué)統(tǒng)計(jì)學(xué)ppt英文課件CH05 description of categorical data.ppt_第2頁
醫(yī)學(xué)統(tǒng)計(jì)學(xué)ppt英文課件CH05 description of categorical data.ppt_第3頁
醫(yī)學(xué)統(tǒng)計(jì)學(xué)ppt英文課件CH05 description of categorical data.ppt_第4頁
醫(yī)學(xué)統(tǒng)計(jì)學(xué)ppt英文課件CH05 description of categorical data.ppt_第5頁
資源描述:

《醫(yī)學(xué)統(tǒng)計(jì)學(xué)ppt英文課件CH05 description of categorical data.ppt》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在教育資源-天天文庫。

1、Chapter5DescriptionofcategoricaldataContentRate、proportionandratioApplicationofrelativenumbersStandardizationofrateDynamicseriesandanalysisindexSection1RelativeNumbers1、Rate2、Proportion3、Ratio1、RateRate:Todescribethefrequencyorintensionofsomephenomenon.=Numberofindividualoccu

2、rredsomethingwithinaperiodoftimeRateThewholenumberoflikelytooccurredsomethinginthesameperiodExample1Toinvestigate8589oldpeopleinsomecityin1998,and2823peoplehadhypertension.Morbidityrate:2823/8589?100%=32.87%2、ProportionProportion:Todescribetheratioofnumberofonepartandthewhole

3、numberinthesamething.Formula:100%=NumberofindividualsinonepartProportionThewholenumberofindividualsExample2Calculatethepatientsproportionof5diseasesinonehospitalin1990and1998.Example2Calculatethepatientsproportionsof5diseasesinonehospitalin1990and1998.Characteristics:(1)Summa

4、tionofproportionsinonethingis100%.(2)Proportionsinthesamethingareinteractional.3、RatioRatio:thequotientoftworelatedindexsFormula:(100%)AindexRatio=BindexExample3Thereare370malenewbornsand358femalenewbornsinahospitalinoneyear,thenThesexratioofnewbornbabies:370/358×100=103Secti

5、on2Applicationofrelativenumbers1、Thedenominatorofrelativenumbershouldnotbetoosmall.2、Proportionshouldnotsubstituterate.3、Tocalculatethetotalratecorrectly.4、Comparisonofrelativenumbers5、Comparisonofsamplerate(proportion)shoulddohypothesistest.Section3Standardizationofrate1、Def

6、initionTocalculatestandardratebyuniforminteriorconstitute.Standardization(oradjustment)ofratesisusedtoenablethevalidcomparisonofgroupsthatdifferregardinganimportanthealthdeterminant(mostcommonlyage).Itisinfactaspecificapplicationofthegeneralmethodstocontrolforconfoundingfacto

7、rs.2、CalculationMethodDirectstandardizationIndirectstandardizationApproach1.Choosethecorrectmethodbyconditionofdata.2.Choosestandardcomposing.3.Calculatestandardrate.FormulaDirectstandardizationIndirectstandardizationExample4Tocalculatestandardcurerateoftwotherapeutics.Approa

8、ch:1)Diseasecurerateoftwotherapeuticsisknown-Directstandardization2)

當(dāng)前文檔最多預(yù)覽五頁,下載文檔查看全文

此文檔下載收益歸作者所有

當(dāng)前文檔最多預(yù)覽五頁,下載文檔查看全文
溫馨提示:
1. 部分包含數(shù)學(xué)公式或PPT動(dòng)畫的文件,查看預(yù)覽時(shí)可能會(huì)顯示錯(cuò)亂或異常,文件下載后無此問題,請(qǐng)放心下載。
2. 本文檔由用戶上傳,版權(quán)歸屬用戶,天天文庫負(fù)責(zé)整理代發(fā)布。如果您對(duì)本文檔版權(quán)有爭(zhēng)議請(qǐng)及時(shí)聯(lián)系客服。
3. 下載前請(qǐng)仔細(xì)閱讀文檔內(nèi)容,確認(rèn)文檔內(nèi)容符合您的需求后進(jìn)行下載,若出現(xiàn)內(nèi)容與標(biāo)題不符可向本站投訴處理。
4. 下載文檔時(shí)可能由于網(wǎng)絡(luò)波動(dòng)等原因無法下載或下載錯(cuò)誤,付費(fèi)完成后未能成功下載的用戶請(qǐng)聯(lián)系客服處理。