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Validity of operative information in Japanese administrative data: a chart review-based analysis of 1221 cases at a single institution

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Abstract

Purpose

To evaluate the validity of operative information recorded in the Diagnosis Procedure Combination (DPC) database, a national inpatient database including administrative claims data.

Methods

We reviewed the medical charts of 1221 patients who underwent one of six surgeries (breast, esophageal, gastric, thyroid cancer surgery, appendectomy, or inguinal hernia repair) at a surgery department of a university hospital from April 2016 to March 2019. We compared operative information (type, date, laterality of procedure; type of anesthesia; transfusion; and duration of anesthesia) recorded in the DPC database with the information recorded in the medical charts.

Results

The DPC data for type, date, laterality of surgery, and type of anesthesia were accurate in 99% of the reviewed patients. The sensitivity and specificity for identifying whether a patient received a transfusion procedure were 97.5% and 99.6%, respectively. Data regarding the duration of anesthesia in the DPC database were identical to those in medical chart records in 1114 of 1216 cases that received general or spinal anesthesia (91.5%). The duration of anesthesia in the DPC data was 53 min longer on average than the recorded operative time in the medical charts.

Conclusion

The DPC database had high validity for operative information.

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Funding

This work was not supported by any grants.

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Authors and Affiliations

  1. Department of Breast and Endocrine Surgery, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan

    Takaaki Konishi, Takako Yoshimoto, Masahiko Tanabe & Yasuyuki Seto

  2. Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan

    Takaaki Konishi, Michimasa Fujiogi & Hideo Yasunaga

  3. Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Boston, MA, 02114, USA

    Michimasa Fujiogi

  4. Department of Health Services Research, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan

    Hayato Yamana

  5. Department of Gastrointestinal Surgery, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan

    Yasuyuki Seto

Authors
  1. Takaaki Konishi
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  2. Takako Yoshimoto
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Correspondence to Takaaki Konishi.

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Konishi, T., Yoshimoto, T., Fujiogi, M. et al. Validity of operative information in Japanese administrative data: a chart review-based analysis of 1221 cases at a single institution. Surg Today 52, 1484–1490 (2022). https://doi.org/10.1007/s00595-022-02521-8

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  • DOI: https://doi.org/10.1007/s00595-022-02521-8

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