© 2020 Elsevier Inc.Objective: Many biomarkers and scoring systems to make clinical predictions about the prognosis of sepsis have been investigated. In this study, we aimed to assess the use of the quick sequential organ failure assessment score (qSOFA) and modified early warning score (MEWS) scoring systems in emergency health care services for sepsis to predict intensive care hospitalization and 28-day mortality. Method: Patients who arrived by ambulance at the Emergency Department (ED) of Dışkapı YıldırımBeyazıt Training and Research Hospital between January 2017 and December 2019, and who were diagnosed with sepsis and admitted to the hospital were included in the study. Demographic data and physiological parameters from 112 ambulance case delivery forms were recorded.QSOFA and MEWS scores were calculated from vital parameters. Results: Of the 266 patients diagnosed with sepsis, 50% (n = 133) were female, and the mean age was 74.8 ± 13. The difference between the rate of intensive care (ICU) hospitalization and mortality for patients with a high MEWS and qSOFA score and patients whose MEWS and qSOFA score were lower was found to be statistically significant (p < 0.05). Thus, the criteria for MEWS and qSOFA could determine ICU hospitalization and early mortality. Those with a high MEWS value had a mortality rate approximately 1.24 times higher than those with a low MEWS value (p < 0.001, 95% CI: 1.110–1.385), while those with a high qSOFA score had a mortality rate approximately 2.0 times higher than those with a low qSOFA score (p < 0.001, 95% CI: 1.446–2.693). Those with a high MEWS were 1.34 times more likely than hose with a lower MEWS to require ICU hospitalization (p < 0.001, 95% CI: 1.1773–1.5131), while patients with a high qSOFA score were 3.21 times more likely than those with a lower qSOFA score to require ICU care (p < 0.001, 95% CI: 2.2289–4.6093). Conclusion: Although qSOFA and MEWS are clinical scores used to identify septic patients outside the critical care unit, we believe that patients already diagnosed with sepsis can be assessed with qSOFA and MEWS prior to hospitalization to predict intensive care hospitalization and mortality. qSOFA was found be more valuable than MEWS in determining the prognosis of pre-hospitalization sepsis.