| Neutrophil to Lymphocyte Ratio (NLCR) can be used as a parameter that has high sensitivity and specificity level as a marker for infection in the human body. NLCR has stronger discriminative power for predicting infection in the body compared to the increase level in the number of neutrophils or lymphocytes alone. NLCR also increase in some infectious disease such as Urinary Tract Infection (UTI) that has large incidence in Indonesia. This study investigate the role of NLCR in discriminating urinary tract infection from the healthy person (non-UTI). This study involving 52 person with UTI and 160 healthy person. This design study is cross-sectional and using a medical record of patient in Atma Jaya Hospital, Indonesia. Comparative analysis of the data showed that the mean value of NLCR in UTI (3,20) was higher than non-UTI (1,34) with p value < 0,001. NLCR have a significant role in discriminating UTI and non-UTI with the cut-off point of 1,730 (sensitivity 94,2%, specificity 84%, and area under the curve (AUC) 99,8%), where someone claimed as a positive UTI in NLCR ?1,730. |