Sites of Synchronous Distant Metastases, Prognosis, and Nomogram for Small Cell Lung Cancer Patients with Bone Metastasis: A Large Cohort Retrospective Study

Figure 4

The calibration curves of the nomogram for the prediction of the 6-, 12-, and 18-month OS of patients in the training cohort ((a)–(c)) and validation cohort ((d)–(f)). The x-axis represents the nomogram-predicted survival rates, whereas the y-axis represents the actual survival rates.

(a)

(b)

(c)

(d)

(e)

(f)