Yang et al reported equations for estimating 24-hour urine protein excretion in Chinese adults. The authors are from Nanjing University and Southern Medical University.
Patient selection: Chinese adult >= 18 years of age
Exclusion: oliguria (24 hour urine volume < 400 ml); UPCR > 15 g/g; 24-hour urine protein > 15 grams
Parameters:
(1) urine protein to creatinine ratio (UPCR) in g/g
(2) age in years
(3) sex
Parameter
Points
UPCR
(0.0323 * (UPCR)) + (0.623 * SQRT(UPCR))
age
-0.0024 * (age)
24-hour urine protein for female in grams =
= (SUM(points for UPCR and age) + 0.381)^2
= (SUM(points for UPCR and age) + 0.522)^2
Performance:
• The area under the ROC curve improves at greater urine protein excretion rates.
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Specialty: Nephrology
