Incidence and prevalence of XXXX in a healthcare plan in Buenos Aires.

@entity1 @entity66 @entity2631 @entity785
BACKGROUND: @entity785 ( @entity2631 ) is an infrequent disease. Data on incidence and prevalence are scarce and conflictive. There are no such data in Latin America or in Argentina in particular. OBJECTIVES: We undertook to examine the incidence and prevalence of @entity785 in the prepaid health maintenance organization of our hospital, in the city of Buenos Aires. METHODS: Members of the plan between 1999 and 2004 were followed up for incident cases, and prevalence was calculated at the end of the period. RESULTS: A total of 98,642 @entity1 were followed up for a total of 32,9534 @entity1 -years. Density of incidence overall was 21.2 per million @entity1 -years (95% confidence interval [CI], 5.4-37). Density of incidence for @entity66 was 6.1 per million @entity1 -years (95% CI, 2.3-14.5), and for limited disease, it was 15.2 per million @entity1 -years (95% CI, 2-28). Prevalence was 296 per million @entity1 (95% CI, 193-434); females, 477 per million @entity1 (95% CI, 309-704); and males, 28 per million @entity1 (95% CI, 7-157). Prevalence for @entity66 was 57 per million @entity1 (95% CI, 18-133), and for limited disease, it was 240 per million @entity1 (95% CI, 148-365). CONCLUSIONS: Despite potential biases, these data are in agreement with others from different parts of the world and the first obtained in Argentina and, to our knowledge, in Latin America.
