To identify factors predicting the development of hepatic encephalopathy,164 patients with severe acute hepatitis(SAH),defined as acute hepatitis having a prolonged prothrombin time(PT)of < 40%activity but without ...To identify factors predicting the development of hepatic encephalopathy,164 patients with severe acute hepatitis(SAH),defined as acute hepatitis having a prolonged prothrombin time(PT)of < 40%activity but without hepatic encephalopathy,were prospectively observed at 57 major liver centers in Japan.From the data of 65 patients enrolled from 1997 to 1998,a prediction equation was developed by multiple logistic regression analysis and prospectively evaluated using the data of 99 patients since 1999.Of the 164 patients with SAH,51(31 %)developed hepatic encephalopathy.From the etiologic viewpoint,the percentages of patients developing encephalopa-thy were highest in non-A-E hepatitis(41.9%).A predictive model,logit(p)= 0.084 x age(year)+0.129 x serum total bilirubin(TB,in mg/dL)-0.158 x prothrombin time(%)-2.434,was developed.In conclusion,old age,prolonged PT,elevation of TB,and non-A-E hepatitis are potential risk factors for developing encepha-lopathy in SAH.展开更多
In this paper,a statistical prediction problem under ordered location and scale parameters are considered.Double-shrinkage predictors are given which use all the available data and improve on single-shrinkage predicto...In this paper,a statistical prediction problem under ordered location and scale parameters are considered.Double-shrinkage predictors are given which use all the available data and improve on single-shrinkage predictors,and hence the best equivariant predictors.展开更多
文摘To identify factors predicting the development of hepatic encephalopathy,164 patients with severe acute hepatitis(SAH),defined as acute hepatitis having a prolonged prothrombin time(PT)of < 40%activity but without hepatic encephalopathy,were prospectively observed at 57 major liver centers in Japan.From the data of 65 patients enrolled from 1997 to 1998,a prediction equation was developed by multiple logistic regression analysis and prospectively evaluated using the data of 99 patients since 1999.Of the 164 patients with SAH,51(31 %)developed hepatic encephalopathy.From the etiologic viewpoint,the percentages of patients developing encephalopa-thy were highest in non-A-E hepatitis(41.9%).A predictive model,logit(p)= 0.084 x age(year)+0.129 x serum total bilirubin(TB,in mg/dL)-0.158 x prothrombin time(%)-2.434,was developed.In conclusion,old age,prolonged PT,elevation of TB,and non-A-E hepatitis are potential risk factors for developing encepha-lopathy in SAH.
文摘In this paper,a statistical prediction problem under ordered location and scale parameters are considered.Double-shrinkage predictors are given which use all the available data and improve on single-shrinkage predictors,and hence the best equivariant predictors.
