Spot Urine Estimations Are Equivalent to 24-Hour Urine Assessments of Urine Protein Excretion for Predicting Clinical Outcomes

Figure 2

Urine albumin versus urine protein excretion. (a-1) UPCR versus UACR. Correlation , 95% CI 0.99-0.99. Bold line: line of identity; fine line: regression line; dotted lines: 95% CI of the regression line. (a-2) Limits of agreement of UPCR and UACR. (a-3) Limits of agreement of Log-transformed UPCR and UACR. (b-1) 24 hr urine protein excretion versus 24 hr urine albumin excretion. Correlation , 95% CI 0.99-0.99. Bold line: line of identity; fine line: regression line; dotted lines: 95% CI of the regression line. (b-2) Limits of agreement of 24 hr urine protein excretion and 24 hr urine albumin excretion. (b-3) Limits of agreement of Log-transformed 24 hr urine protein excretion and 24 hr urine albumin excretion.