eLIFEwithIBD - Living With Intention, Fullness and Engagement With Inflammatory Bowel Disease (Online)

The DASS-21 is a 21-item measure of depressive (e.g., "I felt I wasn't worth much as a person"), anxiety (e.g., "I felt scared without any good reason"), and stress (e.g., "I found it hard to wind down") symptoms during the precedent week, using a 4-point scale [ranging from "did not apply to me at all" (0) to "applied to me very much, or most of the time" (3)].

The EUROHIS-QOL 8-item index is a quality of life measure composed of eight items (regarding general health, energy, daily living activity, overall quality of life, finances, social relationships, self-esteem, and home) which were extracted from the WHOQOL-Bref. Each item has an individualized 5-point Likert scale (the same response scales used in the WHOQOL-bref).

The Inflammatory Bowel Disease Questionnaire-UK version (IBDQ-UK), which is the Anglicized 30-item version of the IBDQ (79, 80), an IBD-specific quality of life instrument. Each item is rated on a 4-point scale (three questions have an additional "non-applicable" option available) ranging from "no, no at all/none" (0) to "on 8 to 14 days (i.e., more than every other day)/Yes, all of the time" (4). Participants are asked to answer questions regarding their IBD and how it has affected their lives during the previous 2 weeks.

The CISS is a 7-item unidimensional scale that was specifically designed to evaluate shame associated with the experience of having a chronic illness and/or its related symptoms (e.g., "I feel inadequate because of my illness and symptoms," "I'm ashamed of talking with others about my illness or symptoms," "I feel that my illness is embarrassing"). Each item is rated on a 5-point Likert scale [from"Never true" (0) to "Always true" (4)].

IBD symptoms scale is a 16-item self-report Portuguese scale which was developed to evaluate the frequency of IBD symptoms during the precedent month (e.g., fatigue, abdominal pain and bloating, flatulence, diarrhea, nausea or vomiting, fever, the urgency to evacuate). Each item is rated on a 7-point scale [ranging from "Never" (0) to "Always" (6)].

The Work and Social Adjustment Scale (WSAS) is a 5-item measure of perceived functional impairment in daily activities, such as work, family, interpersonal relations, social and private leisure activities, and home management. Each item is rated on a 9-point scale ["Not at all" (0) to "Very severely" (8)].

SUS is a 10-item self-report scale aimed to evaluate product and user interface usability (e.g., the confidence and ease of use of the plafaform). Items are rated on a 5-point scale ranging from completely disagree (1) to completely agree (5).

A four-item self-report instrument measures the acceptability and feasibility of the intervention. Items are answered using a 5-point Likert scale ranging from completely disagree (1) to completely agree (5).