An analysis of the length and costs of respirator use with observational data based on medical records

Rei Watanabe, Yasushi Ohkusa

Research output: Contribution to journalArticle

Abstract

OBJECTIVE: This paper documents an analysis of the impact of respirator use on medical expenses with observational data based on medical records from all over Japan. METHOD: The data set included records of medical procedures during a single month, but not for procedures and information extending over plural months. Accordingly, censoring was an important problem. To overcome this, samples are classified into four groups; complete, right censoring, left censoring and both censoring ones using length of respirator use and hospital stay. Then, the Gompertz model was applied to calculate the expected length of respirator use. Simultaneously, medical expenses for respirator use were also estimated. RESULTS: The estimated expected length of respirator use was from 10 to 104 days, with expected medical expenses per case of from 30,000 to 40,000 yen and the number of respirator usages on aggregate of 5510. CONCLUSIONS: This means the impact of respirator use on medical expenses is from 18 to 250 billion yen per year.

Original languageEnglish
Pages (from-to)314-323
Number of pages10
Journal[Nippon kōshū eisei zasshi] Japanese journal of public health
Volume49
Issue number4
Publication statusPublished - 2002 Apr
Externally publishedYes

Fingerprint

Mechanical Ventilators
Medical Records
Costs and Cost Analysis
Length of Stay
Japan

ASJC Scopus subject areas

  • Medicine(all)

Cite this

@article{eb33c4867b83468f8d3383af27bd6628,
title = "An analysis of the length and costs of respirator use with observational data based on medical records",
abstract = "OBJECTIVE: This paper documents an analysis of the impact of respirator use on medical expenses with observational data based on medical records from all over Japan. METHOD: The data set included records of medical procedures during a single month, but not for procedures and information extending over plural months. Accordingly, censoring was an important problem. To overcome this, samples are classified into four groups; complete, right censoring, left censoring and both censoring ones using length of respirator use and hospital stay. Then, the Gompertz model was applied to calculate the expected length of respirator use. Simultaneously, medical expenses for respirator use were also estimated. RESULTS: The estimated expected length of respirator use was from 10 to 104 days, with expected medical expenses per case of from 30,000 to 40,000 yen and the number of respirator usages on aggregate of 5510. CONCLUSIONS: This means the impact of respirator use on medical expenses is from 18 to 250 billion yen per year.",
author = "Rei Watanabe and Yasushi Ohkusa",
year = "2002",
month = "4",
language = "English",
volume = "49",
pages = "314--323",
journal = "[Nihon kōshū eisei zasshi] Japanese journal of public health",
issn = "0546-1766",
publisher = "Nihon Eisei Gammai/Japanese Society of Public Health",
number = "4",

}

TY - JOUR

T1 - An analysis of the length and costs of respirator use with observational data based on medical records

AU - Watanabe, Rei

AU - Ohkusa, Yasushi

PY - 2002/4

Y1 - 2002/4

N2 - OBJECTIVE: This paper documents an analysis of the impact of respirator use on medical expenses with observational data based on medical records from all over Japan. METHOD: The data set included records of medical procedures during a single month, but not for procedures and information extending over plural months. Accordingly, censoring was an important problem. To overcome this, samples are classified into four groups; complete, right censoring, left censoring and both censoring ones using length of respirator use and hospital stay. Then, the Gompertz model was applied to calculate the expected length of respirator use. Simultaneously, medical expenses for respirator use were also estimated. RESULTS: The estimated expected length of respirator use was from 10 to 104 days, with expected medical expenses per case of from 30,000 to 40,000 yen and the number of respirator usages on aggregate of 5510. CONCLUSIONS: This means the impact of respirator use on medical expenses is from 18 to 250 billion yen per year.

AB - OBJECTIVE: This paper documents an analysis of the impact of respirator use on medical expenses with observational data based on medical records from all over Japan. METHOD: The data set included records of medical procedures during a single month, but not for procedures and information extending over plural months. Accordingly, censoring was an important problem. To overcome this, samples are classified into four groups; complete, right censoring, left censoring and both censoring ones using length of respirator use and hospital stay. Then, the Gompertz model was applied to calculate the expected length of respirator use. Simultaneously, medical expenses for respirator use were also estimated. RESULTS: The estimated expected length of respirator use was from 10 to 104 days, with expected medical expenses per case of from 30,000 to 40,000 yen and the number of respirator usages on aggregate of 5510. CONCLUSIONS: This means the impact of respirator use on medical expenses is from 18 to 250 billion yen per year.

UR - http://www.scopus.com/inward/record.url?scp=0036527937&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036527937&partnerID=8YFLogxK

M3 - Article

C2 - 12043177

AN - SCOPUS:0036527937

VL - 49

SP - 314

EP - 323

JO - [Nihon kōshū eisei zasshi] Japanese journal of public health

JF - [Nihon kōshū eisei zasshi] Japanese journal of public health

SN - 0546-1766

IS - 4

ER -