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Table 3 Comparison between patients with and without preoperative anemia to CRC clinicopathological characteristics

From: Anemia can predict the prognosis of colorectal cancer in the pre-operative stage: a retrospective analysis

Characteristics

No anemia (N = 177)

Anemia (N = 123)

P value

Age (years), mean ± SD

63.15 ± 6.7

64.02 ± 7.3

0.291

Gender—female, n (%)

88 (49.7%)

51 (41.5%)

0.159

TNM stage, categorized

Locally advanced CRC

65 (36.7%)

26 (21.1%)

0.004

Highly advanced CRC

112 (63.3%)

97 (78.9%)

Tumor location

Proximal colon

28 (15.8%)

35 (28.4%)

0.016

Transverse colon

32 (18.1%)

28 (22.8%)

Distal colon

81 (45.8%)

37 (30.1%)

Rectum

35 (19.8%)

22 (17.9%)

Multifocal

1 (0.5%)

1 (0.8%)

Tumor size (cm) ± SD

3.59 ± 2.03

4.95 ± 2.64

p<0.001

Obstructing tumor, n (%)

25 (14.1%)

32 (56.1%)

0.010

Symptoms

Asymptomatic

69 (39%)

20 (16.3%)

p<0.001

Symptomatic

108 (61%)

103 (83.7%)

  1. Anemia—HgB < 13 g/dL for male or HgB < 12 g/dL for female
  2. CRC colorectal cancer