The randomised controlled trial explores the efficacy of a counselling interview on an multidisciplinary multimodal intervention to ameliorate the somatic, mental and social medical progress of rheumatoid arthritis in gainfully employed insurants of compulsory health insurances and statutory pension insurances . Additionally, the feasibility to recruit a study population via databases of compulsory health insurances is examined.

Rheumatoid arthritis is the most prevalent inflammatory rheumatic disease. Limited participation of the individual patient accumulates with large amounts of indirect costs for society: About 40 % of the affected patients have to quit their jobs within the first three to four years after disease onset. Nevertheless, the German health care system still seems to lack an adequate supply, particularly in case of medical rehabilitation in early stages of disease. International clinical trials, reviews amd evidence-based guidelines emphasize the importance of an early multimodal multidisciplinary team care as in Germany provided by specialised clinics through three-week in-patient medical rehabilitation programs. The available study explores the efficacy of a counselling interview on an medical in-patient rehabilitation in a randomised controlled design. Exclusively, gainfully employed insurants of compulsory health insurances and statutory pension insurances are included in the study.

Secondary, to avoid the problem of a selection bias caused by recruitment via clinics or doctors, the RCT tests the possibility to recruit potential participants by data of the co-operating health insurances on RA-specific diagnoses of work incapacity, hospital discharge diagnoses, and medical prescriptions within the past 24 months.

Detailed process:

1. Recruitment of a potential study population via health insurance data (defined search criteria: ICD-10 diagnoses M05/06/13/79 in case of work disability/hospital discharge, RA-specific medical prescriptions within the past 24 months)
2. screening questionnaire to verify in-/exclusion criteria
3. selection of eligible insurants (RA-criteria of American College of Rheumatology, clinical expert)
4. baseline measurement (e.g. SF-36, RAQoL, FFbH-P, SPE)
5. external stratified block by block randomization: intervention group (3- week medical in-patient rehabilitation) vs. control group (usual care)
6. follow-up measurement (12 months after baseline)
7. data transfer of health insurances and pension insurances

Comparison:

Looking at a 12-months follow-up, the intervention group (3-week medical in-patient rehabilitation) is expected to show significant enhancement in somatic, mental and social medical parameters concerning rheumatoid arthritis compared to a control group receiving usual care.

Inclusion Criteria:

• Rheumatoid arthritis / psoriatic arthritis (expert decision, ACR criteria)
• Insurant of co-operating health insurance and pension insurance
• Gainfully employed
• Eligible to receive a medical in-patient rehabilitation

Exclusion Criteria:

• Polyarthritis, inflammatory intestinal diseases and diseases of connective tissue
• Currently work disabled
• Not able / not willing to co-operate
• Medical in-patient rehabilitation within past 48 months