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| Presentation | 2014-06-15 09:25 Extraction of Determinants of Postoperative Length of Stay from Operation Records Takanori Yamashita, Yoshifumi Wakata, Satoshi Hamai, Yasuharu Nakashima, Yukihide Iwamoto, Naoki Nakashima, Sachio Hirokawa (Kyushu Univ.)  NLC2014-11 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | 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 feed 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. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | critical path / critical indicator / hip replacement arthroplasty / SVM / logistic regression analysis / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 114, no. 81, NLC2014-11, pp. 59-64, June 2014. | |
| Paper # | NLC2014-11 | |
| Date of Issue | 2014-06-07 (NLC) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | NLC2014-11 |
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| Conference Information | |
| Committee | NLC |
| Conference Date | 2014-06-14 - 2014-06-15 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kyushu Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | NLC |
| Conference Code | 2014-06-NLC |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Extraction of Determinants of Postoperative Length of Stay from Operation Records |
| Sub Title (in English) | |
| Keyword(1) | critical path |
| Keyword(2) | critical indicator |
| Keyword(3) | hip replacement arthroplasty |
| Keyword(4) | SVM |
| Keyword(5) | logistic regression analysis |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Takanori Yamashita |
| 1st Author's Affiliation | Kyushu University (Kyushu Univ.) |
| 2nd Author's Name | Yoshifumi Wakata |
| 2nd Author's Affiliation | Kyushu University (Kyushu Univ.) |
| 3rd Author's Name | Satoshi Hamai |
| 3rd Author's Affiliation | Kyushu University (Kyushu Univ.) |
| 4th Author's Name | Yasuharu Nakashima |
| 4th Author's Affiliation | Kyushu University (Kyushu Univ.) |
| 5th Author's Name | Yukihide Iwamoto |
| 5th Author's Affiliation | Kyushu University (Kyushu Univ.) |
| 6th Author's Name | Naoki Nakashima |
| 6th Author's Affiliation | Kyushu University (Kyushu Univ.) |
| 7th Author's Name | Sachio Hirokawa |
| 7th Author's Affiliation | Kyushu University (Kyushu Univ.) |
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| Speaker | Author-1 |
| Date Time | 2014-06-15 09:25:00 |
| Presentation Time | 25 minutes |
| Registration for | NLC |
| Paper # | NLC2014-11 |
| Volume (vol) | vol.114 |
| Number (no) | no.81 |
| Page | pp.59-64 |
| #Pages | 6 |
| Date of Issue | 2014-06-07 (NLC) |
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