Figure 2.

The survival curves of CMV patients with different requisite days of diagnosis.

Notes: *P<0.05. The number of requisite days of diagnosis (defined as the duration between admission and diagnosis of CMV colitis [Tdx]) from admission was the only predictor of in-hospital mortality. With the ROC curve and Youden index, we obtained the cutoff point of 9 days from a Kaplan–Meier survival curve analysis. The patients with diagnosis before 9 days from admission (dashed line) had significantly better OS than the ones who were diagnosed as CMV colitis after 9 days from admission (solid line).

Abbreviations: CMV, cytomegalovirus; OS, overall survival; ROC, receiver operating characteristic.