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Table 1 Definition of variables used

From: The relationship between socio-demographic factors, health status, treatment type, and employment outcome in patients with inflammatory bowel disease in Japan

Type of variable Type of response
Outcome variable Employment status Unemployed
Employed
Socio-demographic variables Gender Male
Female
Age Years old
Final education level Compulsory education or senior high school
Vocational college or junior college
4-year or 6-year university
Master’s degree
IBD variables Type of IBD Crohn’s Disease
Ulcerative Colitis
Time after the diagnosis of IBD 0–2 years
3–8 years
9–15 years
Longer than 15 years
Comorbidity variables Hyperlipidemia/dyslipidemia No
Yes
Hypertension No
Yes
Depression No
Yes
Treatment variables Prescription of biologics No
Yes
Experience of surgical treatment No
Yes
Interaction variables Interaction between biologic and surgical treatment Surgical treatment with biologics
Surgical treatment without biologics