Comparison of lupus patients with early and late onset nephritis: a study in 71 patients from a single referral center.

Background: Nephritis occurs frequently in systemic lupus erythematosus (SLE) and may worsen disease morbidity and mortality. Knowing all characteristics of this manifestation helps to a prompt recognition and treatment.

Aim: To compare the differences in clinical data, serological profile and treatment response of nephritis of early and late onset.