Fig. 2

a The nomogram to predict the occurrence of MDRO colonization or infection in ICU patients. This nomogram provides a method of calculating the probability of the occurrence of MDRO colonization or infection in the ICU based on a patient’s combination of covariates in the early stages of the ICU stay. To use the nomogram, locate the patient’s gender, and draw a line straight up to the points axis to establish the score associated with that gender. Repeat for the other two covariates. Add the scores for each covariate together, and locate the total score on the total points axis. Draw a line straight down to the linear predictor axis to obtain the probability. b. An example of how to use the nomogram to predict the occurrence of MDRO colonization or infection in ICU patients. A male patient has a CRP value of 50 mg/L within 48 h of entering the ICU, and his Pitt score is 6 points. The points for each predictor add up to 66.5. A vertical line is then drawn from 66.5 on the “Total points” line down to the last lines to predict further MDRO colonization or infection (63.7%)