[Results of a repeated nephropathy screening of the same patient load in a 3-year interval]

In 1976, 1000 women from a large enterprise were examined, with a combination of parameters, for the presence of nephropathy. As a result of this complex examination programme renal diseases were found in 1.2% of cases, 0.6% of those examined had asymptomatic bacteriuria and another 0.6% had essential hypertension. Three years later, in 1979, the examination was repeated in the same group of patients, with the participation of 802 women. This time the incidence of previously undiagnosed kidney diseases was 1.5%, that of asymptomatic bacteriuria 0.8% and that of essential hypertension 0.7%. The present findings appear to justify the demand to have screenings repeated in the same group of patients.