Site differences in mild cognitive dysfunction (MCD) among patients with systemic lupus erythematosus (SLE)
Lupus Erythematosus, Systemic
The rate of MCD-SLE was greater in SLE patients from New York, NY, compared to patients in the Denver, CO, area. The greater duration of disease and higher prevalence of medical complications in the NY group might contribute to this difference. Findings suggest that MCD-SLE may differ by site, but future studies that better evaluate site or selection bias are recommended.