A Study to Evaluate Disease Control, Treatment Patterns, Burden of Disease and Quality of Life in Participants With Moderate to Severe Inflammatory Bowel Disease (IBD)

Anthropometric information included height, weight and body mass index (BMI). BMI ranges: underweight (BMI less than [<] 18.50 kilogram per square meter (kg/m^2), normal range (BMI between 18.50 and 24.99 kg/m^2), overweight (BMI between 25.00 and 29.99 kg/m^2), obese (BMI >=30.00 kg/m^2).

Medical history was defined as an EIM or non-EIM according to the investigator's judgement.

The Montreal classification index for CD was used to classify the extent of the disease activity. It consisted of two parameters: location and behavior of the disease activity. There were four different disease locations presented: Location 1 (L1) is ileum, Location 2 (L2) is colonic disease, Location 3 (L3) is ileocolon and Location 4 (L4) is isolated upper gastrointestinal (GI) tract disease. The first three categories (L1-L3) was combined with L4 where disease sites coexisted. There were 4 different categories for the behavior of the disease activity: Behavior 1 (B1) was non stenosing or non penetrating; Behavior 2 (B2) was stenosing; Behavior 3 (B3) was penetrating and p as perianal disease (p). The first 3 categories (B1 to B3) could be added with p to indicate coexisting perianal disease. Perianal disease (p) was defined as the presence of perianal abscesses or fistulae.

Montreal classification index for UC was used to classify the extent and severity of the disease activity. There were three subgroups of UC defined by extent of inflammation: Extent 1 (E1) =Ulcerative distal UC proctitis and proctosigmoiditis, Extent 2 (E2) =Left-sided mucosa inflammation extending up to splenic flexure and Extent 3 (E3) =Pancolitis mucosa inflammation up to proximal transverse colon and beyond. Severity of UC as S0=Clinical remission (asymptomatic),S1 =Mild UC (passage of four or fewer stools/day [with or without blood],absence of any systemic illness, and normal inflammatory markers),S2 =Moderate UC (passage of more than four stools per day but with minimal signs of systemic toxicity),S3 =Severe UC (passage of at least 6 bloody stools daily, pulse rate of at least 90 beats per minute, temperature of at least 37.5 degree Celsius, hemoglobin of <10.5 gram per 100 milliliter (g/100mL), and erythrocyte sedimentation rate (ESR) of at least 30 millimeter per hour (mm/h).

Various types of therapies for IBD included salicylic derivatives, corticosteroids, immunosuppressors, biologic therapy, antibiotics, nutrition support and others. One participant could use more than one therapy.

Time between the beginning of IBD treatment until the end of treatment. For participants with ongoing IBD treatment at Day 1, stop date was considered as Day 1 date visit. Various types of therapies for IBD included salicylic derivates, corticosteroids, immunosuppressors, biologic therapy, antibiotics, nutrition support and others. One participant could use more than one therapy.

Biologic therapies included infliximab, adalimumab, vedolizumab, certolizumab, golimumab, and ustekimumab. For participants with ongoing biologic therapy at Day 1, stop date was considered as Day 1 date visit.

Participants were stratified based on gender, professional status, educational level and income.

EQ-5D considered five attributes of quality of life evaluation, that is, mobility, self-care, usual activity, pain/discomfort, and anxiety/depression. Each dimension had five possible levels: 1 (no problems); 2 (slight problems); 3 (moderate problems); 4 (severe problems), and; 5 (extreme problems). EQ-5D also included an additional visual analogic scale (EQ-VAS), which ranged from 0 to 100, where 0 indicated worst imaginable health state and 100 was best imaginable health state.

The SF-36 evaluated 8 health dimensions: physical functioning, bodily pain, role physical (limitations due to physical problems), role emotional (limitations due to personal or emotional problems), mental health, social functioning, vitality, and general health perceptions. Based on these 4 scales (physical functioning, role-physical, bodily pain, general health), the physical component summary (PCS) score was generated which ranged between 0 and 100, with higher scores indicating a better quality of life. Based on these 4 scales (vitality, social functioning, role-emotional, and mental health), the mental component summary (MCS) score was generated which ranged between 0 and 100, with higher scores indicating a better quality of life.

The IBDQ was a 32-item questionnaire that measured 4 dimensions: bowel function, emotional status, systemic symptoms, and social function. Within dimensions, each question presented seven possible answers/points. Each domain score was the sum of 8 responses each ranging from 1 to 7, where 1 indicated worst function and 7 the best. The sub-score ranged from 8 to 56 and thus the total score ranged from 32 to 224, where higher score indicating better quality of life.

IBDQ was a 32-item questionnaire that measured 4 dimensions: bowel systems, emotional health, systemic systems, and social function. Within dimensions, each question presented seven possible answers/points. Each domain score was the average of 8 responses each ranging from 1 to 7, where 1 indicated worst function and 7 the best function.

WPAI assessed impact of IBD on work productivity and daily activities in past 7 days. WPAI questions were: if currently employed, 2) hours (hrs) missed due to disease, 3) hrs missed other reasons, 4) hrs actually worked, 5) degree disease affected productivity while working, 6) degree disease affected regular activities. WPAI generates 4 component scores: percentage (%) of work time missed (absenteeism), % of impairment while working (presenteeism), % of overall work impairment (absenteeism and presenteeism combined), and % of activity impairment. TWPI was calculated based on 3 items: (Q2) number of hrs missed from work due to health problems in the past 7 days; (Q4) number of actual work hrs in past 7 days; and (Q5) to what degree did disease impair productivity while working in past 7 days. Data was calculated by: Q2/(Q2+Q4)+([1-(Q2/[Q2+Q4])*(Q5/10])*100 (converted to %). Data is presented as impairment percentage, with higher numbers indicating greater impairment/less productivity.

WPAI assessed impact of IBD on work productivity and daily activities in past 7 days. WPAI questions were: if currently employed, 2) hours missed due to disease, 3) hours missed other reasons, 4) hours actually worked, 5) degree disease affected productivity while working, 6) degree disease affected regular activities. WPAI generates 4 component scores: percentage of work time missed (absenteeism), percentage of impairment while working (presenteeism), percentage of overall work impairment (absenteeism and presenteeism combined), and percentage of activity impairment. Work time missed was calculated based on 2 items: (Q2) number of hours missed from work due to health problems in the past 7 days; and (Q4) number of actual work hours in past 7 days. Data was calculated by following formula:Q2/(Q2+Q4)*100 (converted to %), where higher numbers indicated greater impairment and less productivity.

WPAI assessed impact of IBD on work productivity and daily activities in past 7 days. WPAI questions were: if currently employed, 2) hours missed due to disease, 3) hours missed other reasons, 4) hours actually worked, 5) degree disease affected productivity while working, 6) degree disease affected regular activities. WPAI generates 4 component scores: percentage of work time missed (absenteeism), percentage of impairment while working (presenteeism), percentage of overall work impairment (absenteeism and presenteeism combined), and percentage of activity impairment. Percentage of impairment while working was calculated based on 1 item: (Q5) to what degree did disease impair productivity while working in past 7 days. The item was measured on a scale from 0 (no effect) to 10 (completely prevented from doing regular activities/ working). Data was calculated by following formula: Q5/10*100 (converted to percent), where higher numbers indicated greater impairment and less productivity.

WPAI assessed impact of IBD on work productivity and daily activities in past 7 days. WPAI questions were: if currently employed, 2) hours (hrs) missed due to disease, 3) hrs missed other reasons, 4) hrs actually worked, 5) degree disease affected productivity while working, 6) degree disease affected regular activities. WPAI generates 4 component scores: percentage (%) of work time missed (absenteeism), % of impairment while working (presenteeism), % of overall work impairment (absenteeism and presenteeism combined), and % of activity impairment. % of total activity impairment was calculated based on: (Q6) in past 7 days, how much did your health problems affect your ability to do your regular daily activities, other than work at a job. Item was measured on scale from 0 (no effect) to 10 (completely prevented from doing regular activities/ working). Data was calculated by: Q6/10*100 (converted to percent), where higher numbers indicated greater impairment and less productivity.

Healthcare resources included drug therapies, imaging and laboratory testing, surgeries, hospitalizations and consultations.