Study of the Prevalence of Polymyositis and Dermatomyositis in Normandy

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

187 participants

Study Classification

OBSERVATIONAL

Study Start Date

2014-07-31

Study Completion Date

2016-05-31

Brief Summary

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Polymyositis and dermatomyositis are characterized by the association to a myopathic syndrome, inflammatory infiltrates in the skeletal muscle. They remain, even today, an important factor of morbidity and mortality in these patients. At present, studies that evaluated the prevalence of polymyositis / dermatomyositis are very few; they were mainly recorded in the United States and Japan, the prevalence of polymyositis / dermatomyositis has been estimated between 3.5 and 21.5 cases / 100 000 (according to the old diagnostic criteria of Bohan and Peter). However, previous works are old and retrospective; above all, they have almost always been performed (90% of cases) from cases reported to the hospital, leading to selection bias and an underestimate of the true prevalence of polymyositis / dermatomyositis in the general population.

Thus, these data lead to achieve this epidemiological study, descriptive, multicenter, based on the population of Normandy.

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Detailed Description

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Conditions

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Polymyositis Dermatomyositis

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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patients with polymyositis / dermatomyositis

recruitment of patients with polymyositis / dermatomyositis will be used:

1. medical specialists , hospital and liberals who support patients with polymyositis / dermatomyositis ( internists , dermatologists, neurologists, pulmonologists , rheumatologists ) ;
2. general practitioners
3. the PMSI data for public and private hospitals ; 4 ) data boxes regional health insurance (primary health insurance fund , MSA Normandy , Social Scheme for Self )

5\) Norman patients, members of an association of patients with polymyositis / dermatomyositis : the French Muscular Dystrophy Association

Patients with polymyositis / dermatomyositis

Intervention Type OTHER

recruitment of patients with polymyositis / dermatomyositis using :

1. medical specialists , hospital and liberals who support patients with polymyositis / dermatomyositis ( internists , dermatologists, neurologists, pulmonologists , rheumatologists ) ;
2. general practitioners
3. the PMSI data for public and private hospitals ; 4 ) data boxes regional health insurance (primary health insurance fund , MSA Normandy , Social Scheme for Self )

5\) Norman patients, members of an association of patients with polymyositis / dermatomyositis : the French Muscular Dystrophy Association

Interventions

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Patients with polymyositis / dermatomyositis

recruitment of patients with polymyositis / dermatomyositis using :

1. medical specialists , hospital and liberals who support patients with polymyositis / dermatomyositis ( internists , dermatologists, neurologists, pulmonologists , rheumatologists ) ;
2. general practitioners
3. the PMSI data for public and private hospitals ; 4 ) data boxes regional health insurance (primary health insurance fund , MSA Normandy , Social Scheme for Self )

5\) Norman patients, members of an association of patients with polymyositis / dermatomyositis : the French Muscular Dystrophy Association

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* patients with polymyositis / dermatomyositis, meeting the diagnostic criteria for ENMC;
* patient living Normandy ;
* patient has been informed and has given its verbal agreement ;

Exclusion Criteria

* patients with myositis diagnosed before inclusion (including pathophysiology, clinical phenotype and therapeutic care are different from polymyositis / dermatomyositis)

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No