TY - JOUR
T1 - Random urinary protein-to-creatinine ratio for prediction of significant proteinuria in women with preeclampsia
AU - Yamasmit, Waralak
AU - Chaithongwongwatthana, Surasith
AU - Charoenvidhya, Dhiraphongs
AU - Uerpairojkit, Boonchai
AU - Tolosa, Jorge E.
N1 - Funding Information:
This study was supported by Division of Maternal-Fetal-Medicine, Department of Obstetrics and Gynecology, Faculty of Medicine, Chulalongkorn University.
PY - 2004/11
Y1 - 2004/11
N2 - Objective: To evaluate the accuracy of random urinary protein-to-creatinine ratio for prediction of significant proteinuria in women with suspected preeclampsia. Methods: A prospective study was conducted in hospitalized pregnant women with a suspicion of preeclampsia. Random mid-stream urine specimens were obtained for protein-to-creatinine ratio determination, and then participants were instructed to collect 24-h urine samples for protein measurement. With the criterion of 24-h proteinuria of at least 300 mg as a significant proteinuria, the sensitivity and specificity of a random urinary protein-to-creatinine ratio of ≥ 0.19 for prediction of significant proteinuria were analyzed and a receiver operating characteristic curve was constructed to determine the optimal cutoff value. Results: Forty-two patients completed the study. Sixty-nine percent of the study population had significant proteinuria. A cutoff of ≥ 0.19 demonstrated a sensitivity of 100% and a specificity of 53.8%. A ratio below 0.22 could rule out a significant proteinuria. The optimal cutoff value is 0.25 which yielded sensitivity, specificity and accuracy of 96.6%, 92.3% and 95.2% respectively. Conclusion: In hospitalized preeclamptic patients, the random urinary protein-to-creatinine ratio at a cutoff of ≥ 0.25 revealed a highly accurate prediction of significant proteinuria and could be a more practical alternative for assessment of proteinuria.
AB - Objective: To evaluate the accuracy of random urinary protein-to-creatinine ratio for prediction of significant proteinuria in women with suspected preeclampsia. Methods: A prospective study was conducted in hospitalized pregnant women with a suspicion of preeclampsia. Random mid-stream urine specimens were obtained for protein-to-creatinine ratio determination, and then participants were instructed to collect 24-h urine samples for protein measurement. With the criterion of 24-h proteinuria of at least 300 mg as a significant proteinuria, the sensitivity and specificity of a random urinary protein-to-creatinine ratio of ≥ 0.19 for prediction of significant proteinuria were analyzed and a receiver operating characteristic curve was constructed to determine the optimal cutoff value. Results: Forty-two patients completed the study. Sixty-nine percent of the study population had significant proteinuria. A cutoff of ≥ 0.19 demonstrated a sensitivity of 100% and a specificity of 53.8%. A ratio below 0.22 could rule out a significant proteinuria. The optimal cutoff value is 0.25 which yielded sensitivity, specificity and accuracy of 96.6%, 92.3% and 95.2% respectively. Conclusion: In hospitalized preeclamptic patients, the random urinary protein-to-creatinine ratio at a cutoff of ≥ 0.25 revealed a highly accurate prediction of significant proteinuria and could be a more practical alternative for assessment of proteinuria.
KW - Preeclampsia
KW - Protein-to-creatinine ratio
KW - Proteinuria
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U2 - 10.1080/jmf.16.5.275.279
DO - 10.1080/jmf.16.5.275.279
M3 - Article
C2 - 15621543
AN - SCOPUS:12344259725
SN - 1476-7058
VL - 16
SP - 275
EP - 279
JO - Journal of Maternal-Fetal and Neonatal Medicine
JF - Journal of Maternal-Fetal and Neonatal Medicine
IS - 5
ER -