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Table 1 Characteristics of patients split by age (n = 80)

From: Comparison of CT derived body composition at the thoracic T4 and T12 with lumbar L3 vertebral levels and their utility in patients with rectal cancer

  

65–74

 < 65

 ≥ 75

p-value

N

 

20

43

17

 

AGE

 

70.7 (2.9)

52.9 (8.2)

79.6 (2.9)

 < 0.001

SEX

F

6 (30%)

10 (23%)

5 (29%)

0.81

M

14 (70%)

33 (77%)

12 (71%)

BMI

 

27.4 (4.8)

28.1 (6.4)

27.5 (4.4)

0.87

T4

CSA

149.9 (31.3)

180.2 (33.0)

145.9 (30.2)

 < 0.001

 

SMI

54.7 (12.8)

60.8 (9.7)

53.7 (8.4)

0.020

T12

CSA

87.2 (20.2)

99.8 (22.6)

89.1 (19.4)

0.054

 

SMI

31.8 (8.0)

33.8 (7.3)

32.9 (6.3)

0.61

L3

CSA

130.0 (27.5)

151.4 (32.9)

136.4 (33.2)

0.033

 

SMI,

47.3 (10.7)

51.0 (9.5)

50.0 (9.5)

0.37

  1. Data are mean (SD) or n (%), p-value from t-test. F Female, M Males, BMI Body Mass Index, CSA Cross sectional area, SMI Skeletal Muscle Index, T4 Fourth thoracic vertebral level, T12 Twelfth thoracic vertebral level, L3 Third lumbar vertebral level, SD Standard Deviation