Proteinuria and glomerular disease in Jamaica.

Clinical, laboratory and renal biopsy data on 50 adult patients investigated in Jamaica because of proteinuria of more than 1 g/day were reviewed. Primary glomerular disease was present in 23 cases and the most common histological pattern was mesangial proliferation. Proteinuria was part of a systemic disease in 27 patients of whom 19 had systemic lupus erythematosus (SLE). Urinary protein excretion was less in patients with systemic diseases than in those with primary glomerulonephritis, but hypoalbuminemia, renal function and presence of edema were not helpful in distinguishing types and causes of renal disease. By comparison with other countries SLE and mesangial proliferative glomerulonephritis are common causes of proteinuria and nephrotic syndrome in Jamaica whereas idiopathic membranous glomerulonephropathy appears to be rare.