The mean follow-up was 2.2 years.
In study 1, the projected mean decline in the glomerular filtration rate at three year did not differ significantly between the diet group or between the blood-pressure group.
As compared with the usual-protein group and the low blood-pressure group had a more rapid decline in the glomerular filtration rate during the first for month after randomization and a slower decline thereafter.
In study 2,the very-low-protein group had a marginally slower decline in the glomerular filtration rate than did the low-protein group (P=0.07).
There was no delay in the time to the occurrence of end-stage renal disease or death.
In both studies, patients in the low-blood –pressure group who had more pronounced proteinuria at base line had a significantly slower rate of decline in the glomerular filtration filtration rate.