No. study

Risk Ratio

95% CI

P

I²

Behavior (CD)

B1, non-stricturing/penetrating

6

1.024

0.900~1.166

0.718

36.4

B2, stricturing

6

0.939

0.766~1.152

0.549

23.2

B3, penetrating

6

1.024

0.829~1.264

0.826

40.5

Location (CD)

L1, ileal

6

0.987

0.823~1.184

0.888

83.1

L2, colonic

6

0.944

0.709~1.255

0.69

0

L3, ileocolonic

6

1.024

0.919~1.142

0.669

47.1

Extention (UC)

E1, ulcerative proctitis

4

1.039

0.600~1.799

0.892

0

E2, left-sided UC

4

0.833

0.467~1.486

0.536

7.6

E3, extensive

4

1.065

0.839~1.353

0.604

10.9