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ID:32064304
大小:2.13 MB
页数:59页
时间:2019-01-31
《老年髋部骨折术前风险评估与风险预测方程的初步建立》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、meaningfulvariablesandvariationcoefficienttoestablishthepredictionequation.Tothesamesetofdatabacktogenerationintotheequation,nexttoanalyzetheresults.Results:Collectionofsurgicaltreatmentof546casesofelderlypatientswithhipfracture,Man:casesof223,female:casesof323;Atthebeginningoftheremaining518ca
2、sesafterscreen,theoriginaljudgmentof“1”108cases,410casesoftheoriginaljudgmentof“0”;Throughthestatisticalanalysistogetpreoperativesurgicalriskpredictionequationisobtained:Y=0.042Xwbc+O.004Xb。,+0.515Xnyha+0.227Xmmse+0.594Xxxghb+1.513Xhxhb+1.189Xmnhb+2.703Xqqhb-2.138;Theroleofeachvariableintheabov
3、eequationtothediscriminantresultsizecanusestandardizedcoefficientestimation,andthestandardizationofthevariablecoefficient,respectively:wbc(numerationofleukocyteunitxl09/L)O.154,bcr(serumcreatinineunitumol/L)0.222,nyha(cardiacfunctionalgrading)0.357,mmse(MiniMentalStateExamination)O.171,xxghb(ca
4、rdiovascularsystemcomplications)0.213,hxhb(Respiratorysystemcomplications)O.553,mnhb(Urinarysystemcomplications)0.270,qqhb(Othertumor、consumptivedisease,etccomplications)0.419:Putbackthecasesintotheequation,combinedsurgerypreoperativeriskdecisionaccuracy:84.O%.Variablevaluesrelatingtoasampleofg
5、enerationintothediscriminantequation,thedefinitionofthediscriminantpointsY>0astherisklevel“1”,identifyingpointsY<0ofthedefinitionofrisklevel“0’’.Identifyingriskfor..4..level“O"ofCenterpointsis一0.413·Identifyingriskforlevel“1’’ofCenterpointsiS1.568.Conclusion:(1)Surgicalriskfactorsofelderlypatie
6、ntswithhipfractureinfluencetheresultoftheforecast,whichCanbeexpressedinstandardizedcoefficient,respiratorycomplicationsamongthemisthemostimportantriskfactor,followedbycardiovascularcomplications.(2)Preoperativeriskpredictionequationofelderlypatientswithhipfracture:Y=0.042Xwb。+O.004Xbc,+0.515Xny
7、ha+0.227Xmmse+0.594XXx曲b+1.513Xhxhb+1.189Xmnhb+2.703Xqqhb一2.138;Preoperativesurgicalriskpredictionaredonebydiscriminantequation,Putbackthecasesintotheequation,combinedsurgerypreoperativeriskdecisionaccuracy..84.O%.Thisequationcanb
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