Cross sectional longitudinal study of spot morning urine protein:creatinine ratio, 24 hour urine protein excretion rate, glomerular filtration rate, and end stage renal failure in chronic renal disease in patients without diabetes

An editorial error occurred in this paper by Ruggenenti and others (14 February, pp 504-9). In the second section of the results, in relation to figure 2, the decline in glomerular filtration rate in the lowest third of the population was wrongly given as −0.31 (0.21) ml/min/1.73 m²/month. It should have read −0.13.