Certified thoracic surgeons in Japan: a national database survey on risk-adjusted mortality associated with lung resection

Takuro Miyazaki, Eriko Fukuchi, Hiroyuki Yamamoto, Hiroaki Miyata, Fumihiro Tanaka, Morihito Okada, Kenji Suzuki, Ichiro Yoshino, Shunsuke Endo, Yukio Sato, Masayuki Chida, Takeshi Nagayasu

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Purpose: We investigated the association between the number of certified general thoracic surgeons (GTSs) and the mortality after lung cancer surgery, based on the data from the National Clinical Database (NCD). Methods: We analyzed the characteristics and operative and postoperative data of 120,946 patients who underwent lung cancer surgery in one of the 905 hospitals in Japan. The number of GTSs in each hospital was categorized as 0, 1–2, or 3 or more. Multivariable analysis was applied to adjust the patients’ preoperative risk factors, as identified in a previous study. We calculated 95% confidence intervals (CI) for the mortality rate based on the odds ratios (ORs). Results: The patients’ characteristics were distributed almost uniformly regardless of the number of GTSs. Crude mortality according to the number of GTSs of 0, 1–2, or 3 or more was 0.9%, 0.8%, and 0.7%, respectively (p = 0.03). However, after adjustment, the ORs for 1–2 and 3 or more GTSs (reference: 0) were 0.86 (p = 0.23, 95% CI: 0.67–1.10) and 0.84 (p = 0.18, 95% CI: 0.64–1.09), respectively. The number of GTSs did not have a significant association with mortality. Similar results were observed for patients in the lobectomy cohort. Conclusion: Low surgical mortality was consistent, regardless of the number of GTSs in each hospital.

Original languageEnglish
Pages (from-to)1268-1275
Number of pages8
JournalSurgery today
Issue number8
Publication statusPublished - 2021 Aug
Externally publishedYes


  • Certified thoracic surgeon
  • Lung cancer
  • Nationwide survey
  • Surgery

ASJC Scopus subject areas

  • Surgery


Dive into the research topics of 'Certified thoracic surgeons in Japan: a national database survey on risk-adjusted mortality associated with lung resection'. Together they form a unique fingerprint.

Cite this