Table 1 Characteristics of the CRC patients diagnosed with Blastocystis sp. infection using light microscopy (LM) (n = 107) and PCR (n = 95)

Age (years)

65

66

Median (range)

(38–88)

(40–88)

Sex, number of patients (%)

 Women

41 (38.3%)

37

 Men

66 (61.7%)

58

Tumour location*, number (%)

 Right side

24 (22.4%)

22

 Left side

83 (77.6%)

73

Tumour location*, number (%)

 Rectum

45 (42.1%)

40

 Colon

62 (57.9%)

55

TNM stage, number (%)

 I

18 (16.8%)

18

 IIA

36 (33.7%)

33

 IIB

0

0

 IIC

1 (0.9%)

0

 IIIA

1 (0.9%)

1

 IIIB

28 (26.2%)

23

 IIIC

7 (6.5%)

6

 IV

16 (15%)

14

Astler-Coller stage, number (%)

 A

3 (2,8%)

3

 B1

15 (14%)

15

 B2

36 (33.6%)

33

 B3

1 (0.9%)

0

 C1

2 (1.9%)

1

 C2

32 (29.9%)

28

 C3

2 (1.9%)

1

 D

16 (15%)

14

Astler-Coller stage, number (%)

 A + B

55 (51.4%)

51

 C + D

52 (48.6%)

44

Grade, number (%)**

 G1

7 (6.7%)

6

 G2

78 (74.3%)

68

 G3

14 (13.3%)

14

 Mucinosum

6 (5.7%)

6

Grade, number (%)**

 G1 + G2

85 (81%)

74

 G3 + mucinosum

20 (19%)

20