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The major causative factor of hepatic cirrhosis and its complications in chronic hepatitis C is due to presence of liver fibrosis. To assess prognosis and management related decisions, the exact staging of liver fibrosis is of greatest importance. Now, liver biopsy is the inexact gold standard for this purpose. APRI or AST to platelet ratio Index is the best noninvasive marker which can predict presence of fibrosis in majority of chronic hepatitis C patients without the need of biopsy. It is also cost effective and only depends on routine testing (Platelet count and serum AST). Objectives: To determine the positive predictive value of APRI Score for the prediction of fibrosis and cirrhosis in chronic hepatitis C patients. Study design: Cross sectional study. Setting: Medical wards and Out Patient Medicine Department of Liaquat University Hospital Hyderabad / Jamshoro. Period: 6 months. Methodology: A total of 51 patients of either gender, age >14 years presenting to Medical wards and OPD for the evaluation of chronic hepatitis were enrolled in this research study after giving preference and avoiding criteria. Clinical data was collected at the time of liver biopsy and blood samples for liver function tests, blood glucose and complete blood picture with platelet count were collected before the biopsy (only AST and platelet count are needed for APRI score) a core biopsy needle of 14 gauge was used and the procedure was conducted under ultrasound guidance. Fibrosis stage was determined according to the METAVIR group scoring system. The patients were examined in a very comfortable manner and all the information collected from the patients was kept confidential and entered in the predesigned proforma. Results: A total of 51 patients were selected for this study. Out of these 31 (60.78%) were male and 20(39.22%) were female. The mean age was 42.53 years (±11.2 SD). The positive predictive value for APRI score between 0.5 to 1.0 was 58.82% whereas the positive predictive values for APRI score 1.1-1.5 was 70.58%. Conclusion: The positive predictive values of APRI score in the ranges of 0.5 to 1.5 were not indicative of the presence of significant liver fibrosis in this research study. However, additional data are required to authenticate or disprove the usefulness of APRI score for the prediction of significant hepatic fibrosis in chronic hepatitis C patients. [ABSTRACT FROM AUTHOR]