Variable

Normal

Active colitis

IBD

Polyp

Malignancy

Clinical presentation

altered bowel habits

0

2

0

0

0

Abdominal pain

1

166

17

25

30

Bloody diarrhea

1

3

0

0

0

Rectum Bleeding

0

7

0

1

7

Abdominal diseases

0

0

0

0

1

Total

2

178

17

26

38

Site

Cecum

1

4

0

0

2

Ascending colon

0

143

16

17

15

Descending

0

6

0

0

4

Transverse

0

1

0

0

0

Sigmoid

0

9

0

5

8

Rectum

1

15

1

4

9

Total

2

178

17

26

38

Age

≤ 35 years

0

38

3

1

4

36-45

1

42

5

5

8

46-55

0

37

2

9

8

56-65

1

44

6

9

6

≥ 66

0

17

1

2

12

Total

2

178

17

26

38