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Table 1 Patient characteristics, study methodology, and quality assessment of included trials

From: Improvement of surgical complications using single-lumen endotracheal tube intubation and artificial carbon dioxide pneumothorax in esophagectomy: a meta-analysis

Author, year Patient Diagnosis Surgery Study Design Enrolled sample number (Male/Female) Average age, years Intention-to-treat Outcome measurement Quality assessment
Ruixiang Zhang, 2014 [1] Esophageal cancer MIE Case-Control DLET:60/21
DLET:64.3 ± 6.5
SLET:62.5 ± 6.5
Not mentioned Surgical variables and postoperative complications 8
Itasu Ninomiya, 2017 [15] Esophageal cancer MIE Case-Control DLET:49/9
DLET: 65.8 ± 8.5
SLET:63.1 ± 8.2
Not mentioned Postoperative mortality and morbidity rates; Surgical outcomes during thoracic procedures 8
Miao Lin, 2018 [16] Esophageal cancer MIE Case-Control DLET:527/178
DLET:61.8 ± 7.89
SLET:61.4 ± 7.92
Not mentioned Surgical variables and postoperative complications;
Parameters during surgery
Shinsuke Nomura, 2020 [17] Esophageal cancer MIE Case-Control DLET:59/12
DLET:71.1 ± 5.8
SLET:69.9 ± 10.1
Not mentioned Comparison of postoperative outcomes; Perioperative changes in SIRS criteria, PaO2/FiO2 ratio and CRP 8
  1. MIE Minimally invasive esophagectomy, DLET Double lumen endotracheal tube intubation, SLET Single lumen endotracheal tube intubation, SIRS Systemic inflammatory response syndrome