3.3. Major events during ICU stay
AKI and VAP were more frequent in the NOAF positive group than the NOAF negative group (for AKI 70.3%, vs. 51.7%, respectively; p = 0.048 and for VAP 54.1%, vs. 35.5%, respectively; p = 0.04). The percentage of patients with secondary bacterial infection was significantly higher in the NOAF positive group than the NOAF negative group (75.7% vs. 51.7%, respectively; p = 0.007).
3.4. Length of stays and mortality
No differences were detected in terms of the median length of ICU stay (for NOAF positive group 9.0 [4.5–15.0] vs for NOAF negative group 7.0 [4.0–14.0] days, p = 0.21) and median length of hospital stay (for NOAF positive group 15.0 [9.5–20.5] vs for NOAF negative group: 14.0 [9.0–20.0] days, p = 0.55). Although ICU mortality of patients was higher in the NOAF positive group compared to the NOAF negative group, no statistically significant difference was detected (83.8% vs. 67.3%, respectively, p = 0.052). Hospital mortality was higher in the NOAF positive group than the NOAF negative group (86.5%, vs. 67.3%, respectively, p = 0.019).
In this study, hospital mortality was 70.1% (n = 174). Statistically significant variables for hospital mortality are reported in Table 2.