P revious studies have reported a marked variation in the prevalence of microalbuminuria in type 2 diabetic patients ranging from 7 to 47% (1– 13). The variation could arise from ethnic/genetic differences in susceptibility (3–11) and from methodological issues for investigating the prevalence, such as small-sized populations (3,12,13); single clinic–based studies (8,12); use of the dipstick me...