Fig. 6

Bootstrap method. The x-axis shows the probability of LNM status predicted by the nomogram, and the y-axis shows the actual ratio of the LNM status. The reference line is dashed, indicating apparent calibration
Bootstrap method. The x-axis shows the probability of LNM status predicted by the nomogram, and the y-axis shows the actual ratio of the LNM status. The reference line is dashed, indicating apparent calibration