Can prognostic nutritional index and systemic immune‐inflammatory index predict disease severity in COVID‐19?

Background Prognostic nutritional index (PNI) and systemic immune‐inflammatory index (SII) are inflammation‐based novel markers that predict the prognosis in various patient populations. We have investigated the relationship between the disease severity in COVID‐19, and the PNI and SII scores in the present study. Materials and Methods This cross‐sectional retrospective study included 118 hospitalised patients with a confirmed diagnosis of COVID‐19. The patients were divided into two groups as those who were hospitalised at the intensive care unit (ICU) and those who had been internalised at the clinic (non‐ICU). Results Of the 118 patients, 50.8% were male. The mean age was 57.7 ± 17.5 years in non‐ICU patients and 70.3 ± 11.7 years in ICU patients and the difference was statistically significant (P