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Table 2 Correlations between characteristics and sarcopenia in patients undergoing radical esophagectomy

From: Skeletal muscle loss in the postoperative acute phase after esophageal cancer surgery as a new prognostic factor

Variable

Total cases

TPI reduction rate mild group

TPI reduction rate severe group

P value

Total cases, n (%)

72 (100)

36 (50%)

36 (50%)

-

Age at RE (y), median (IQR)

66 (43 - 83)

66 (55 - 83)

66 (44 - 82)

0.9380a

ASA, n (%)

   

0.6908b

 1, 2

65 (90%)

33 (92%)

32 (89%)

 

 ≥ 3

7 (10%)

3 (8%)

4 (11%)

 

Preoperative sarcopeniad, n (%)

   

0.4533b

 Sarcopenic

64 (89%)

33 (92%)

31 (86%)

 

 Nonsarcopenic

8 (11%)

3 (8%)

5 (14%)

 

Tumor location, n (%)

   

0.5798c

 Ce/Ut

17 (24%)

10 (28%)

7 (19%)

 

 Mt/Lt/Ae

55 (76%)

26 (72%)

29 (81%)

 

pStage, n (%)

   

0.3450b

 < pStage III

36 (50%)

21 (58%)

15 (42%)

 

 ≥ pStage III

36 (50%)

15 (42%)

21 (58%)

 

Preoperative therapy, n (%)

   

0.5675c

 None

17 (24%)

8 (22%)

9 (25%)

 

 Chemotherapy

54 (75%)

28 (78%)

26 (72%)

 

 Chemoradiotherapy

1 (1%)

0 (0%)

1 (3%)

 

Postoperative therapy, n (%)

   

0.5675c

 None

17 (24%)

8 (22%)

9 (25%)

 

 Chemotherapy

51 (75%)

28 (78%)

26 (72%)

 

 Chemoradiotherapy

1 (1%)

0 (0%)

1 (3%)

 

Operative procedure, n (%)

   

0.0407b

 Open esophagectomy

22 (31%)

7 (19%)

15 (42%)

 

 Thoracoscopic esophagectomy

50 (69%)

29 (81%)

21 (58%)

 

 Blood loss (ml), median (IQR)

330 (150 - 510)

230 (110 - 405)

370 (255 - 723.75)

0.0087a

 Operative time (min), median (IQR)

616.5 (553.5 - 698)

622 (540.75 - 728.5)

610.5 (559.25 - 676.5)

0.4885a

  1. TPI total psoas major muscle mass index, RE radical esophagectomy, IQR interquartile range, ASA the American Society of Anesthesia physical status, pStage pathological stage (UICC 8th), aWilcoxon rank-sum test, bFisher’s exact test, cChi-square test, dAccording to the definition of Prado [22]