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| Name | Class |
|---|---|
| Netherlands: Ministry of Health, Welfare and Sports | OTHER_GOV |
| Ingredia S.A. | INDUSTRY |
| Nexira | INDUSTRY |
| Naturex |
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This study is a cross-sectional observational study design that aimed to include 2000 IBS patients. We used several validated questionnaires, to assess IBS characteristics (such as subtype, severity), psychological features (QoL, anxiety and depression) and assess nutritional triggers.
Subjects filled in the questionnaire online, and was spread across the Netherlands.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| IBS |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| No intervention | Other | No intervention |
|
| Measure | Description | Time Frame |
|---|---|---|
| IBS subtype | Assessed using the Validated Bristol stool chart | 1 day (once ) |
| IBS severity | Assessed by the validated Symptom severity scale (IBS-SSS), rangeing from 0 - 500; 0 very low and 500 very severe case | 1 day (once ) |
| Nutrition questionnaire | We composed a questionnaire containing 44 identified nutritional triggers from literature, and asked subjects if they had (0, no complaints), 1 little complaints, 2 severe complaints, after eating that product. | 1 day (once ) |
| Birmingham symptom questionnaire | Validated questionnaire that assesses symptoms for three domains: pain, diarrhoea and constipation | 1 day (once ) |
| Measure | Description | Time Frame |
|---|---|---|
| Irritable bowel syndrome Quality of Life questionnaire | We used the validated IBS-QOL which asked 44 questions about quality of life related to IBS. Score ranged from 0 - 100: 100 indicating a very high quality of life, 0 indicating a very poor quality of life | 1 day (once ) |
| Hospital Anxiety and Depression Score (HADS) |
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Inclusion Criteria:
Exclusion Criteria:
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There were no strict inclusion and exclusion criteria, since many IBS patients do not have an official diagnosis of IBS. therefore, the ROME IV diagnostic criteria were included in the questionnaire, to assess whether subjects fit within the IBS profile.
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Wageningen University & Research | Wageningen | 6700 VB | Netherlands |
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| ID | Term |
|---|---|
| D043183 | Irritable Bowel Syndrome |
| ID | Term |
|---|---|
| D003109 | Colonic Diseases, Functional |
| D003108 | Colonic Diseases |
| D007410 | Intestinal Diseases |
| D005767 | Gastrointestinal Diseases |
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| OTHER |
| Bioiberica | INDUSTRY |
| Wecare | OTHER |
| Roquette Freres | INDUSTRY |
| Darling | UNKNOWN |
| Winclove Probiotics B.V. | INDUSTRY |
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We used the validated HADS questionnaire to assess anxiety and depression in IBS patients. This questionnaire gives 2 scores: one for anxiety and depression. Scores range from 0-21, a score above 8 can be referred to as being a case for having anxiety or depression |
| 1 day (once ) |
| treatment options currently used | We self-composed a questionnaire to assess what type of treatments patients already used, and what their perceived effect was. | 1 day (once ) |
| Rome IV criteria | Validated questions to check whether a subject fits within the profile of IBS | 1 day (once ) |
| D004066 | Digestive System Diseases |