Fig. 1

Nomogram for predicting LNM in patients with T1/T2 gallbladder cancer. To use the nomogram, a factor’s value of an individual patient was located on each axis, and a line was drawn upward to determine the points received for each variable value. The points for each variable were summed and located on the total point line. And then, the bottom line corresponding vertically to the above total line illustrated the individual predictive risk for LNM. (LNM, lymph node metastasis)