Rheumatism and Dietetic: RHUMADIET Study (Food Practices and Beliefs)

Study Overview
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Brief Summary
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Cross sectional study assessing food practices and beliefs in RA, AS and DA (digital arthritis)

Detailed Description
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To investigate in patients having rheumatoid arthritis (RA), or axial spondyloarthritis (AS) or digital osteoarthritis (DA) practices and beliefs about influence of food and diet on their rheumatic disease. 200 patients of each disease will be included in this cross-sectional non interventional study Factors associated with specific practices or specific beliefs will be determined. Only questionnaires are used in this study.

Official Title
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Rheumatism and Dietetic: RHUMADIET Study (Food Practices and Beliefs)

Conditions
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Rheumatoid Arthritis, Axial Spondyloarthritis, Hand Osteoarthritis

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Over 18 years of age Rheumatoid arthritis (RA) according to ACR/EULAR criteria or axial spondyloarthritis (AS) according to ASAS 2009 criteria or digital osteoarthritis (DA) according to ACR criteria. Exclusion Criteria: Severe upper functional or psychiatric disorders Patients under guardianship or trusteeship Patients unable to answer the questionnaire in French

Ages Eligible for Study
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Minimum Age: 19 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Rheumatoid arthritis<br>EULAR-ACR criteria Whatever the treatment and the disease activity | |
| Axial spondyloarthritis<br>ASAS criteria for axial disease Whatever the treatment and the disease activity | |
| digital osteoarthritis<br>According to ACR criteria Whatever the treatment and the disease activity | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Proportion of patients who follow or have followed at least one diet for their rheumatic disease among gluten-free, cow's milk, lactose-free, vegetarian, vegan, Seignalet, Mediterranean, fasting period | Binary criterion: Diet follower Yes/No | 10 minutes | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| comparison between each rheumatism rheumatoid arthritis, Axial spondyloarthritis digital osteoarthritis of the prevalence of patients having followed or following one or more diets | Proportion of diet follower patients in RA versus AS versus DA. Specific food and diet questionnaires will be used in this study. | 10 minutes | 
| For each type of food, prevalence of patients with RA considering that the food influences the rheumatic pain in each rheumatic disease | for each type of food (meat, vegetables, fruits, grains, nuts, fish, alcohol, soda), prevalence of patients with RA considering that food influence their disease symptoms | 10 minutes | 
| For each type of food, prevalence of patients with AS considering that the food influences the rheumatic pain in each rheumatic disease | for each type of food (meat, vegetables, fruits, grains, nuts, fish, alcohol, soda), prevalence of patients with AS considering that food influence their disease symptoms | 10 minutes | 
| For each type of food, prevalence of patients with DA considering that the food influences the rheumatic pain in each rheumatic disease | for each type of food (meat, vegetables, fruits, grains, nuts, fish, alcohol, soda), prevalence of patients with DA considering that food influence their disease symptoms | 10 minutes | 
| Research of socio-demographic or rheumatic factors associated with dieting in RA. | In RA population:Unajusted and adjusted risk of diet (odds ratio) assiociated with the following factors reported from patient file or patient questionnaires. Sociodemorgraphic parameters:Age, gender, education level. Physiologic parameters: Autoantibody status, BMI Clinical parameters: treatments, disease activity using DAS 28 scale. | 10 minutes | 
| Research of socio-demographic or rheumatic factors associated with dieting in AS. | In AS population: Unajusted and adjusted risk of diet (odds ratio) assiociated with the following factors reported from patient file or patient questionnaires. Sociodemorgraphic parameters:Age, gender, education level. Physiologic parameters: BMI Clinical parameters: treatments, disease activity using BASDAI Scale | 10 minutes | 
| Research of socio-demographic or rheumatic factors associated with dieting in DA. | In DA population: Unajusted and adjusted risk of diet (odds ratio) assiociated with the following factors reported from patient file or patient questionnaires. Sociodemorgraphic parameters: Age, gender, education level. Physiologic parameters: BMI Clinical parameters: treatments, disease activity using 0-100mm visual analogic scale | 10 minutes | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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rheumatoid arthritis, Axial spondyloarthritis, hand osteoarthritis, diet, beliefs