Table 5. Basal and mean follow-up serum potassium levels in 1513 patients with type 2 diabetes and overt nephropathy according to tertile of baseline serum creatinine and randomization to losartan or placebo treatment

Serum Potassium (mEq/L)Lowest TertileMiddle TertileHighest Tertile
LosartanPlaceboLosartanPlaceboLosartanPlacebo
a P < 0.001 versus basal.
b P < 0.001 versus Losartan.
Basal4.5 ± 0.54.6 ± 0.54.6 ± 0.54.6 ± 0.54.7 ± 0.54.7 ± 0.5
Follow-up4.8 ± 0.2a4.6 ± 0.1b4.9 ± 0.1a4.7 ± 0.1b4.9 ± 0.1a4.7 ± 0.1b