Assessment of Giant Cell Arteritis Medical Practices in France

Proportion of patients for each physician specialty that referred the patient

Physician encountered by the patient at least one time since the first events related to GCA (Multiple answers possible, If a patient encountered a medical speciality more than one time, this speciality will be counted only once)

Time between GCA signs/symptoms and diagnosis

Proportions of each diagnostic method used

GCs treatment since diagnosis : Current GC dose at inclusion and total cumulative GC dose according to investigator (excl. IV bolus) since diagnosis.

Number of patients with at least one GC kinetic ongoing at inclusion

Immunosuppressants for GCA taken since diagnosis and stopped before inclusion

Number of patients with at least one immunosuppressant ongoing at inclusion

Number of patients who have taken at least one targeted biologic therapy since diagnosis and stopped before inclusion

Number of patients with at least one targeted biologic therapy ongoing at inclusion

Comorbidities related/ aggravated by the use of GCs according to the investigator's judgment in at least 2 patients (by SOC)

Number of patients with at least one ongoing treatment for comorbidities related to the use of GCs

Proportion of incident patients: patients with a diagnosis of GCA ≤ 6 weeks from inclusion

Proportion of prevalent patients: patients with a diagnosis of GCA > 6 weeks from inclusion

Time since GCA diagnosis for overall population, prevalent and incident patients

Proportions of patients with cranial GCA, Polymyalgia Rheumatica (PMR), extracranial GCA, elevated ESR/CRP and general signs at diagnosis

Proportion of patients with at least one relapse and number of relapses

Proportions of patients with GCA complications

Score of the physician and patient global arteritis activity on a 100 mm-visual analog scale (100mm-VAS) (Patients with physician's VAS score less than or equal to 10mm will be considered with "non-active GCA", while patients with physician's VAS score greater than 10 mm will be considered with "active GCA")

Total and detailed scores of the self reported SF-36 questionnaire (36-Item Short Form Survey Instrument): 36 item survey measuring health-related quality-of-life.

For each domains: score ranging from 0 (worst health status) to 100 (best health status)

Total score of the EuroQol-5 Dimensions 3 Levels (EQ5D-3L) questionnaire and perceived current health state (100mm-EQ_VAS score, 0 = 'Worst imaginable health state' and 100 = 'Best imaginable health state)

Total score of the 13-items Functional Assessment of Chronic Illness Therapy - Fatigue (FACIT-Fatigue) questionnaire.

FACIT-Fatigue is an instrument that measures overall fatigue and its effects on the general functioning and daily activities through 13 questions. Each question has 5 levels: not at all, a little bit, somewhat, quite a bit, very much. Lower scores indicate greater fatigue. The total score of FACIT-Fatigue varies from 0 to 52 (score <30 = severe fatigue).

Physician characteristics: medical specialty

Number of years since medical school graduation

Physician main activity (University Hospital or General Services Hospital)

Number of GCA cases (Horton) personally treated within the last year prior to the date of inclusion of first patient