&lt;b&gt;Task Force Report on the Validation of Diagnosis Codes and Other Outcome Definitions in the Japanese Receipt Data &lt;/b&gt;

Iwagami, Masao; Aoki, Kotonari; Akazawa, Manabu; Ishiguro, Chieko; Imai, Shinobu; Ooba, Nobuhiro; Kusama, Makiko; Koide, Daisuke; Goto, Atsushi; Kobayashi, Norihiro; Sato, Izumi; Nakane, Sayuri; Miyazaki, Masaru; Kubota, Kiyoshi

doi:10.3820/jjpe.23.95

Cited by 24 publications

(36 citation statements)

References 67 publications

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“…Rehabilitation was employed for the stroke algorithm, which meant that it counts only the patients who survived the initial hospital stay but not the lethal events. Our proposed 30 If we consider the burden on medical institutions, as was experienced in our study, then the totality of the burden over multiple endpoints, drugs, and pharmaceutical companies seems insurmountable. A report on claims data validation has been produced by the Japanese Society of Pharmacoepidemiology that summarizes the current state of validation in Japan.…”

Section: Discussionmentioning

confidence: 93%

“…A report on claims data validation has been produced by the Japanese Society of Pharmacoepidemiology that summarizes the current state of validation in Japan. 30 We recommend this report as a source for further information. Abbreviations: Clop, clopidogrel sulfate; CorAngio, coronary angioplasty, including percutaneous stent placement, percutaneous transluminal coronary angioplasty, and percutaneous thrombo-aspiration; CT, computed tomography; Hosp, hospitalization; MedPros, medical procedures; MRI, magnetic resonance imaging; PPV, positive predictive value; Rehab, rehabilitation; US, ultrasonography.…”

Section: Discussionmentioning

confidence: 99%

“…If we consider the burden on medical institutions, as was experienced in our study, then the totality of the burden over multiple endpoints, drugs, and pharmaceutical companies seems insurmountable. A report on claims data validation has been produced by the Japanese Society of Pharmacoepidemiology that summarizes the current state of validation in Japan 30 . We recommend this report as a source for further information.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Validation of novel identification algorithms for major adverse cardiovascular events in a Japanese claims database

Shima

Higa

et al. 2020

J of Clinical Hypertension

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Section: Discussionmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Validation of novel identification algorithms for major adverse cardiovascular events in a Japanese claims database

Shima

Higa

et al. 2020

J of Clinical Hypertension

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“…The findings of this study suggest that decreasing the incidence of femoral neck fractures is important in terms of minimizing medical costs. This is a particularly important endeavor considering the severe disability associated with femoral neck fractures; 10-25% of patients with femoral neck fractures have died within 1 year after surgery 2,5,21,22) and 25-50% of patients experience a loss of mobility. 2,5) Interestingly, this study determined that a higher proportion of males than females sustained a vertebral fracture for which they were hospitalized.…”

Section: Discussionmentioning

confidence: 99%

“…First, validity of the methodology used for fracture diagnoses requires further verification in additional validation studies, although implementation of validation studies is difficult in Japan. 23) Second, for comorbidities, no attempt was made to improve the precision of the information by assessing modifier codes and any other examinations which could potentially introduce information bias. Third, we were not able to estimate the incidence rate of fractures or compare the incident rates in the previous regional studies performed inside [7][8][9][10] and outside 1,2,22) of Japan, because our data are derived from a polypharmacy study with a case-crossover design.…”

Section: Discussionmentioning

confidence: 99%

Fragility Fractures in Older People in Japan Based on the National Health Insurance Claims Database

Iihara

Ohara

Bando

et al. 2019

Biological & Pharmaceutical Bulletin

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Fragility fractures associated with age-related bone loss are of urgent concern worldwide because they reduce QOL and pose financial burdens for health care services. Currently, national data in Japan are limited. This study provides quantitative data for older patients throughout Japan who, although otherwise relatively healthy, sustained fragility fractures and were hospitalized for them. The National Database of Health Insurance Claims and Specific Health Checkups of Japan was accessed to target patients aged 65 years or older who sustained fractures between May 2013 and September 2014 and were not hospitalized for at least 13 months prior to fracture. We investigated whether the first fracture sustained was fragility related at any of four locations (proximal humerus, distal radius, vertebra, or femoral neck) and whether it necessitated hospitalization. Fragility fractures were identified in 490138 of 1188754 patients (41.2%, 345980 patients/ year; 1 : 4 male-to-female ratio). Regardless of gender, vertebral fractures were most common across the age cohorts studied (43286 males and 162767 females/year), and femoral neck fractures increased markedly with increased patient age. Approximately 80% of patients with femoral neck fractures were hospitalized (62.3% of males, 71.1% of females) compared with up to 10.4% of patients with other fragility fractures. Data provided in this study can be used as a baseline for evaluating the health economy and establishing health policy in Japan.

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Accuracy of Japanese claims data in identifying diabetes‐related complications

Fujihara

Yamada-Harada

Matsubayashi

et al. 2021

Pharmacoepidemiology and Drug

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Purpose To evaluate the accuracy of various claims‐based definitions of diabetes‐related complications (coronary artery disease [CAD], heart failure, cerebrovascular disease and dialysis). Methods We evaluated data on 1379 inpatients who received care at the Niigata University Medical & Dental Hospital in September 2018. Manual electronic medical chart reviews were conducted for all patients with regard to diabetes‐related complications and were used as the gold standard. Sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of each claims‐based definition associated with diabetes‐related complications based on Diagnosis Procedure Combination (DPC), International Classification of Diseases, Tenth Revision (ICD‐10) codes, procedure codes and medication codes were calculated. Results DPC‐based definitions had higher sensitivity, specificity, and PPV than ICD‐10 code definitions for CAD and cerebrovascular disease, with sensitivity of 0.963–1.000 and 0.905–0.952, specificity of 1.000 and 1.000, and PPV of 1.000 and 1.000, respectively. Sensitivity, specificity, and PPV were high using procedure codes for CAD and dialysis, with sensitivity of 0.963 and 1.000, specificity of 1.000 and 1.000, and PPV of 1.000 and 1.000, respectively. DPC and/or ICD‐10 codes + medication were better for heart failure than the ICD‐10 code definition, with sensitivity of 0.933, specificity of 1.000, and PPV of 1.000. The PPVs were lower than 60% for all diabetes‐related complications using ICD‐10 codes only. Conclusion The DPC‐based definitions for CAD and cerebrovascular disease, procedure codes for CAD and dialysis, and DPC or ICD‐10 codes with medication codes for heart failure could accurately identify these diabetes‐related complications from claims databases.

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<b>Task Force Report on the Validation of Diagnosis Codes and Other Outcome Definitions in the Japanese Receipt Data </b>

Cited by 24 publications

References 67 publications

Validation of novel identification algorithms for major adverse cardiovascular events in a Japanese claims database

Validation of novel identification algorithms for major adverse cardiovascular events in a Japanese claims database

Fragility Fractures in Older People in Japan Based on the National Health Insurance Claims Database

Accuracy of Japanese claims data in identifying diabetes‐related complications

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