Study of random urinary calcium/creatinine ratio as a predictor of preeclampsia in and around Chitradurga

Abstract

Pre-eclampsia is defined as development of hypertension and proteinuria (>300 mg in 24 hours urine) after 20th week of gestation. The presence of proteinuria remains central to the diagnosis of pre-eclampsia. 24 hours urinary protein measurement is time-consuming and needs more assistance. Spot urinary calcium: creatinine ratio (CCR) has been used to determine the diagnostic accuracy of proteinuria in pre-eclampsia. A case control comparative study was done with women having pre-eclampsia and normal pregnant women admitted in Gynecology department at Basaveshwara Medical College Hospital, Chitradurga according to the criteria. There was a significant negative correlation between calcium: creatinine ratio and 24-hours urinary proteinuria (r= -0.51). Spot urinary calcium: creatinine ratio at cut off value of 0.18 shows 100% sensitivity and 84% specificity. We conclude that the urinary calcium: creatinine ratio should be considered as a potential alternative for 24-hours urine collection for proteinuria in pregnant women to detect pre-eclampsia.