Development and usability of a hospital standardized ADL ratio (HSAR) for elderly patients with cerebral infarction: a retrospective observational study using administrative claim data from 2012 to 2019 in Japan

Abstract Background Maintenance of activities of daily living (ADL) during acute hospitalization is an important treatment goal, especially for elderly inpatients with diseases that often leave disabilities, such as cerebral infarction. However, studies assessing risk-adjusted ADL changes are limite...

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Main Authors: Ryo Onishi, Yosuke Hatakeyama, Koki Hirata, Kunichika Matsumoto, Kanako Seto, Yinghui Wu, Takefumi Kitazawa, Tomonori Hasegawa
Format: Article
Language:English
Published: BMC 2023-04-01
Series:BMC Geriatrics
Subjects:
Online Access:https://doi.org/10.1186/s12877-023-03957-4
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author Ryo Onishi
Yosuke Hatakeyama
Koki Hirata
Kunichika Matsumoto
Kanako Seto
Yinghui Wu
Takefumi Kitazawa
Tomonori Hasegawa
author_facet Ryo Onishi
Yosuke Hatakeyama
Koki Hirata
Kunichika Matsumoto
Kanako Seto
Yinghui Wu
Takefumi Kitazawa
Tomonori Hasegawa
author_sort Ryo Onishi
collection DOAJ
description Abstract Background Maintenance of activities of daily living (ADL) during acute hospitalization is an important treatment goal, especially for elderly inpatients with diseases that often leave disabilities, such as cerebral infarction. However, studies assessing risk-adjusted ADL changes are limited. In this study, we developed and calculated a hospital standardized ADL ratio (HSAR) using Japanese administrative claims data to measure the quality of hospitalization care for patients with cerebral infarction. Methods This study was designed as a retrospective observational study using the Japanese administrative claim data from 2012 to 2019. The data of all hospital admissions with a primary diagnosis of cerebral infarction (ICD-10, I63) were used. The HSAR was defined as the ratio of the observed number of ADL maintenance patients to the expected number of ADL maintenance patients multiplied by 100, and ratio of ADL maintenance patients was risk-adjusted using multivariable logistic regression analyses. The c-statistic was used to evaluate the predictive accuracy of the logistic models. Changes in HSARs in each consecutive period were assessed using Spearman’s correlation coefficient. Results A total of 36,401 patients from 22 hospitals were included in this study. All variables used in the analyses were associated with ADL maintenance, and evaluations using the HSAR model showed predictive ability with c-statistics (area under the curve, 0.89; 95% confidence interval, 0.88–0.89). Conclusions The findings indicated a need to support hospitals with a low HSAR because hospitals with high/low HSAR were likely to produce the same results in the subsequent periods. HSAR can be used as a new quality indicator of in-hospital care and may contribute to the assessment and improvement of the quality of care.
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spelling doaj.art-f13986c5442449b88e6d6029ea333faa2023-04-23T11:27:25ZengBMCBMC Geriatrics1471-23182023-04-012311810.1186/s12877-023-03957-4Development and usability of a hospital standardized ADL ratio (HSAR) for elderly patients with cerebral infarction: a retrospective observational study using administrative claim data from 2012 to 2019 in JapanRyo Onishi0Yosuke Hatakeyama1Koki Hirata2Kunichika Matsumoto3Kanako Seto4Yinghui Wu5Takefumi Kitazawa6Tomonori Hasegawa7Department of Social Medicine, Toho University School of MedicineDepartment of Social Medicine, Toho University School of MedicineDepartment of Social Medicine, Toho University School of MedicineDepartment of Social Medicine, Toho University School of MedicineDepartment of Social Medicine, Toho University School of MedicineSchool of Nursing, Shanghai Jiao Tong UniversityDepartment of Nursing, Faculty of Health Sciences, Tokyo Kasei UniversityDepartment of Social Medicine, Toho University School of MedicineAbstract Background Maintenance of activities of daily living (ADL) during acute hospitalization is an important treatment goal, especially for elderly inpatients with diseases that often leave disabilities, such as cerebral infarction. However, studies assessing risk-adjusted ADL changes are limited. In this study, we developed and calculated a hospital standardized ADL ratio (HSAR) using Japanese administrative claims data to measure the quality of hospitalization care for patients with cerebral infarction. Methods This study was designed as a retrospective observational study using the Japanese administrative claim data from 2012 to 2019. The data of all hospital admissions with a primary diagnosis of cerebral infarction (ICD-10, I63) were used. The HSAR was defined as the ratio of the observed number of ADL maintenance patients to the expected number of ADL maintenance patients multiplied by 100, and ratio of ADL maintenance patients was risk-adjusted using multivariable logistic regression analyses. The c-statistic was used to evaluate the predictive accuracy of the logistic models. Changes in HSARs in each consecutive period were assessed using Spearman’s correlation coefficient. Results A total of 36,401 patients from 22 hospitals were included in this study. All variables used in the analyses were associated with ADL maintenance, and evaluations using the HSAR model showed predictive ability with c-statistics (area under the curve, 0.89; 95% confidence interval, 0.88–0.89). Conclusions The findings indicated a need to support hospitals with a low HSAR because hospitals with high/low HSAR were likely to produce the same results in the subsequent periods. HSAR can be used as a new quality indicator of in-hospital care and may contribute to the assessment and improvement of the quality of care.https://doi.org/10.1186/s12877-023-03957-4Cerebral infarctionActivities of daily livingQuality indicatorAdministrative dataJapan
spellingShingle Ryo Onishi
Yosuke Hatakeyama
Koki Hirata
Kunichika Matsumoto
Kanako Seto
Yinghui Wu
Takefumi Kitazawa
Tomonori Hasegawa
Development and usability of a hospital standardized ADL ratio (HSAR) for elderly patients with cerebral infarction: a retrospective observational study using administrative claim data from 2012 to 2019 in Japan
BMC Geriatrics
Cerebral infarction
Activities of daily living
Quality indicator
Administrative data
Japan
title Development and usability of a hospital standardized ADL ratio (HSAR) for elderly patients with cerebral infarction: a retrospective observational study using administrative claim data from 2012 to 2019 in Japan
title_full Development and usability of a hospital standardized ADL ratio (HSAR) for elderly patients with cerebral infarction: a retrospective observational study using administrative claim data from 2012 to 2019 in Japan
title_fullStr Development and usability of a hospital standardized ADL ratio (HSAR) for elderly patients with cerebral infarction: a retrospective observational study using administrative claim data from 2012 to 2019 in Japan
title_full_unstemmed Development and usability of a hospital standardized ADL ratio (HSAR) for elderly patients with cerebral infarction: a retrospective observational study using administrative claim data from 2012 to 2019 in Japan
title_short Development and usability of a hospital standardized ADL ratio (HSAR) for elderly patients with cerebral infarction: a retrospective observational study using administrative claim data from 2012 to 2019 in Japan
title_sort development and usability of a hospital standardized adl ratio hsar for elderly patients with cerebral infarction a retrospective observational study using administrative claim data from 2012 to 2019 in japan
topic Cerebral infarction
Activities of daily living
Quality indicator
Administrative data
Japan
url https://doi.org/10.1186/s12877-023-03957-4
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