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. Author manuscript; available in PMC: 2016 Dec 7.
Published in final edited form as: Ann Thorac Surg. 2016 May 4;102(2):416–423. doi: 10.1016/j.athoracsur.2016.02.078

Table 3.

Study Outcomes in Propensity-Matched OE Versus MIE and Laparoscopic Versus RAMIE Groups

Outcomes OE (n = 928) MIE (n = 928) p Value SMIE (n = 170) RAMIE (n = 170) p Value
Positive resection margin 5.5% (50) 7.0% (65) 0.176 4.1% (7) 6.5% (11) 0.333
Lymph nodes harvested (number) 8/13/20 9/15/21 0.016 11/16/22 11/16/21 0.954
Hospital length of stay (d) 8/11/16 8/10/14 0.046 8/10/13 8/10/14 0.835
30-d readmission 6.7% (62) 7.0% (65) 0.792 8.9% (15) 5.9% (10) 0.292
30-d mortality rate 3.7% (23) 3.0% (17) 0.497 2.7% (3) 3.7% (3) 0.677

Matched variables included age, sex, race, insurance status, Charlson-Deyo comorbidity score, treatment facility type, location of the primary tumor, histologic type, American Joint Committee on Cancer clinical stage, tumor size, and use of neoadjuvant chemoradiotherapy. Data are represented as percent (n) for categorical variables and Q1/median/Q3 for continuous variables unless otherwise specified.

MIE = minimally invasive esophagectomy; OE = open esophagectomy; Q1 = first quartile; Q3 = third quartile; RAMIE = robotic-assisted minimally invasive esophagectomy; SMIE = standard minimally invasive esophagectomy.