TY - GEN
T1 - Extraction of determinants of postoperative length of stay from operation records
AU - Yamashita, Takanori
AU - Wakata, Yoshifumi
AU - Nakashima, Naoki
AU - Hirokawa, Sachio
AU - Hamai, Satoshi
AU - Nakashima, Yasuharu
AU - Iwamoto, Yukihide
N1 - Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.
PY - 2014
Y1 - 2014
N2 - Secondary use of clinical text data are gaining much attention in improving the quality and the efficiency of medical treatment. Although there is some case studies of medical-examination text data, there are not many examples fed back to the medical-examination spot. The present paper analyses the operation records of total hip arthroplasty. We extracted feature words that characterize the two peaks which appeared in distribution of postoperative hospital days using SVM (support vector machine) and FS (feature selection). The models gained by optimal FS attained 60% accuracy as prediction performance. We applied logistic regression analysis to estimate postoperative length of stay from the extracted feature words. Most words were not statistically significant except two words.
AB - Secondary use of clinical text data are gaining much attention in improving the quality and the efficiency of medical treatment. Although there is some case studies of medical-examination text data, there are not many examples fed back to the medical-examination spot. The present paper analyses the operation records of total hip arthroplasty. We extracted feature words that characterize the two peaks which appeared in distribution of postoperative hospital days using SVM (support vector machine) and FS (feature selection). The models gained by optimal FS attained 60% accuracy as prediction performance. We applied logistic regression analysis to estimate postoperative length of stay from the extracted feature words. Most words were not statistically significant except two words.
UR - http://www.scopus.com/inward/record.url?scp=84904553421&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84904553421&partnerID=8YFLogxK
U2 - 10.1109/IWECA.2014.6845748
DO - 10.1109/IWECA.2014.6845748
M3 - Conference contribution
AN - SCOPUS:84904553421
SN - 9781479945658
T3 - Proceedings - 2014 IEEE Workshop on Electronics, Computer and Applications, IWECA 2014
SP - 822
EP - 827
BT - Proceedings - 2014 IEEE Workshop on Electronics, Computer and Applications, IWECA 2014
PB - IEEE Computer Society
T2 - 2014 IEEE Workshop on Electronics, Computer and Applications, IWECA 2014
Y2 - 8 May 2014 through 9 May 2014
ER -