Application of the SCORED questionnaire for the screening of chronic kidney disease among patients with hypertension and diabetes

Abstract Introduction A questionnaire named SCORED was developed in order to predict the probability of an individual chances of having chronic kidney disease (CKD). We aimed to evaluate the performance of SCORED among hypertensives and diabetics registered with the Family Health Strategy (FHE) program in the city of Meruoca, Ceará, Brazil. Methods 221 participants formed the sample. Glomerular filtration rate <60 mL/min was used as gold standard for CKD diagnosis. We calculated accuracy, sensitivity, specificity and positive and negative likelihood ratios of the SCORED tool for the diagnosis of CKD. Results Results of SCORED performance were the following: the score generated was an independent predictor of CKD (OR=1.261; CI 95%=1.108-1.597; p=0.049); the questionnaire had 97% sensitivity and 23% specificity in diagnosing CKD, with positive likelihood ratio of 1.25 and negative of 0.13, and accuracy of 47%. High sensitivity and low negative likelihood ratio enables SCORED to be used as a screening tool for CKD among hypertensive and diabetic people. Conclusion The use of this questionnaire has the potential to increase early diagnosis of CKD among patients registered with the FHE, besides its applicability to the general population and in educational campaigns.