Key result
The age-adjusted incidence rate of rheumatoid arthritis in France was 8.8/100,000, appearing lower than rates in other Caucasian populations across Europe, the USA, and Japan.
Observational
Yes
The incidence of rheumatoid arthritis in France appears to be lower than in other European countries, the USA, and Japan.
Incidence of RA in France may be lower than elsewhere; leaves open whether differences reflect true variation or methodology.
The incidence of rheumatoid arthritis (RA) was estimated in the Lorraine district, eastern France, over the period 1986-1989. Cases were identified from in- and outpatients at the district Rheumatology Hospital Centre, private rheumatologists, general practitioners and by regional media announcements. Supplementary cases resident in the area were sought by extending the procedure to adjacent districts. The population count was obtained from the national Census. An overall age-adjusted incidence rate of 8.8/100,000 was found using the 1987 ACR criteria (12.7/100,000 in females, 4.7/100,000 in males; sex ratio = 2.65) and 9.5/100,000 using the 1958 ARA criteria (definite and classic RA). These rates were compared, using the same standard population, with the age-adjusted incidence rates in other incidence studies mainly conducted in Caucasian populations. The RA incidence rates appeared lower in France than in any other country in Europe, USA and Japan.
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Guillemin et al. (1994) conducted an observational in Rheumatoid arthritis. Geographic location (France) vs. Other countries (Europe, USA, Japan) was evaluated on Age-adjusted incidence rate of rheumatoid arthritis per 100,000 (1987 ACR criteria). The age-adjusted incidence rate of rheumatoid arthritis in France was 8.8/100,000, appearing lower than rates in other Caucasian populations across Europe, the USA, and Japan.
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