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Table 1 Baseline characteristics of all patients per weight category

From: The impact of body weight on the development of peritoneal metastases in colorectal cancer patients: results from a nationwide cohort study

 

BMI < 18.5 (n = 121) (2%)

BMI 18.5–24.9 (n = 2448) (38%)

BMI 25–29.9 (n = 2633) (41%)

BMI > 30 (n = 1234) (19%)

p-value*

Age (years), mean (SD)

68.9 ± 11.5

68.5 ± 11.0

68.4 ± 9.7

67.5 ± 8.8

0.012

Sex, n (%)

    

< 0.001

 Male

34 (28.1)

1323 (54.0)

1709 (64.9)

682 (55.3)

 

 Female

87 (71.9)

1125 (46.0)

924 (35.1)

552 (44.7)

 

Tumor location, n (%)

    

< 0.001

 Right colon

51 (43.6)

770 (31.8)

779 (29.8)

377 (30.7)

 

 Left colon

32 (27.4)

845 (34.9)

942 (36.1)

507 (41.3)

 

 Rectum

34 (29.1)

805 (33.3)

891 (34.1)

344 (28.0)

 

Tumor differentiation, n (%)

    

< 0.001

 Good/moderate

77 (63.6)

1781 (72.8)

2058 (78.2)

968 (78.4)

 

 Poor/undifferentiated

15 (12.4)

225 (9.2)

210 (8.0)

107 (8.7)

 

 Missing

29 (24.0)

442 (18.1)

365 (13.9)

159 (12.9)

 

Tumor histology

    

0.910

 Adenocarcinoma

110 (90.9)

2238 (91.4)

2404 (91.3)

1113 (90.2)

 

 Mucinous adenocarcinoma

9 (7.4)

184 (7.5)

201 (7.6)

105 (8.5)

 

 Signet ring cell carcinoma

2 (1.7)

26 (1.1)

28 (1.1)

16 (1.3)

 

Synchronous PM, n (%)

    

0.005

 Yes

9 (7.4)

135 (5.5)

108 (4.1)

41 (3.3)

 

 No

112 (92.6)

2313 (94.5)

2525 (95.9)

1193 (96.7)

 

Synchronous systemic metastases, n (%)

    

< 0.001

 Yes

30 (24.8)

517 (21.1)

415 (15.8)

150 (12.2)

 

 No

91 (75.2)

1931 (78.9)

2218 (84.2)

1084 (87.8)

 

Tumor stage, n (%)

    

< 0.001

 T0–2

17 (15.3)

699 (30.2)

929 (35.3)

458 (37.1)

 

 T3

70 (63.1)

1191 (51.4)

1278 (48.5)

600 (48.6)

 

 T4

24 (21.6)

425 (17.4)

327 (12.4)

139 (11.3)

 

 Missing data

10 (8.3)

133 (5.4)

99 (3.8)

37 (3.0)

 

Nodal stage, n (%)

    

0.238

 N0

53 (43.8)

1019 (41.6)

1155 (43.9)

560 (45.4)

 

 N1

39 (32.2)

826 (33.7)

861 (32.7)

400 (32.4)

 

 N2

20 (16.5)

521 (21.3)

512 (19.4)

228 (18.5)

 

Missing data

9 (7.4)

82 (3.3)

105 (4.0)

46 (3.7)

 
  1. BMI Body mass index (in kg/m2), n Number, SD Standard deviation, PM Peritoneal metastases
  2. *Missing data were excluded from the comparative analyses
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World Journal of Surgical Oncology

ISSN: 1477-7819

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