Table 3 Factors associated with significant weight gain over 1 year after diagnosis of moderate-to-severe ulcerative colitis

Age group (years) > 40

≤ 40

0.858

0.481

1.532

0.605

0.904

0.481

1.699

0.754

Female

Male

0.892

0.494

1.611

0.704

0.983

0.509

1.898

0.959

Disease extent at diagnosis

 Left-sided colitis

Proctitis

3.240

0.705

14.898

0.661

3.243

0.689

15.255

0.598

 Extensive colitis

7.085

1.545

32.494

0.002

6.502

1.363

31.022

0.006

Disease activity at diagnosis^a

 Severe

Moderate

2.000

0.736

5.436

0.174

-

-

-

-

Weight loss at diagnosis = Yes

No

1.333

0.663

2.683

0.420

-

-

-

-

Smoking history at diagnosis

 Past

Never

0.756

0.404

1.414

0.120

-

-

-

-

 Current

1.753

0.624

4.927

0.170

-

-

-

-

EIMs at diagnosis = Yes

No

0.773

0.199

3.014

0.711

-

-

-

-

Disease activity at 1 year = Non-remission^b

Remission

0.368

0.194

0.697

0.002

0.492

0.227

1.069

0.073

Number of relapses during the 1 year

-

0.525

0.331

0.831

0.006

0.683

0.401

1.164

0.161

Initial systemic steroid use = Yes

No

1.503

0.840

2.688

0.170

-

-

-

-

Exposed medication during the 1 year

 Systemic steroid = Yes

No

1.343

0.726

2.484

0.348

-

-

-

-

 Immunomodulators = Yes

No

1.019

0.550

1.889

0.953

-

-

-

-

 Biologics = Yes

No

0.465

0.167

1.291

0.142

-

-

-

-