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Table 1 Patient characteristics after matching

From: Comparison of minimally invasive Ivor Lewis esophagectomy and left transthoracic esophagectomy in esophageal squamous cell carcinoma patients: a propensity score-matched analysis

Characteristic MIILE (n = 216) Sweet (n = 216) p value
Age, year 61(56~68) 61.46 ± 8.03 0.629
Gender, n (%)    0.593
 Male 181(83.8) 185(85.6)  
 Female 35(16.2) 31(14.4)  
BMI (kg/m2) 21.46 (19.26~23.04) 21.09 (18.86~23.52) 0.637
CCI, n(%)    0.808
 2 9(4.2) 13(6.0)  
 3 46(21.3) 48(22.2)  
 4 80(37.0) 84(38.9)  
 5 60(27.8) 54(25.0)  
 6 21(9.7) 17(7.9)  
 7 0(0.0) 0(0.0)  
Tumor length (cm) 4.0(3.0~5.0) 3.5(3.0~4.5) 0.178
Tumor locationa, n(%)    0.974
 Upper and middle junction 11(5.1) 10(4.6)  
 Middle 99(45.8) 100(46.3)  
 Lower 106(49.1) 106(49.1)  
Tumor stageb, n(%)    0.594
 1 46(21.3) 42(19.4)  
 2 28(13.0) 34(15.8)  
 3 136(63.0) 130(60.2)  
 T4 6(2.7) 10(4.6)  
Nodal stageb, n(%)    0.675
 0 107(49.5) 115(53.2)  
 1 51(23.6) 54(25.0)  
 2 33(15.3) 27(12.5)  
 N3 25(11.6) 20(9.3)  
Pathologic stageb, n(%)    0.794
 I 50(23.1) 53(24.5)  
 II 68(31.5) 72(33.3)  
 III 98(45.4) 91(42.2)  
Adjuvant therapy, n(%)    0.962
 None 118(54.6) 123(56.9)  
 Chemotherapy 26(12.0) 24(11.1)  
 Chemoradiotherapy 44(20.4) 41(19.0)  
 Radiaotherapy 28(13.0) 28 (13.0)  
  1. a,bThe classification of tumor pathology and location was based on the American Joint Committee on Cancer, 7th ed. MIILE = Minimally invasive Ivor Lewis esophagectomy;
  2. BMI Body mass index, CCI Charlson comorbidity index