Additional file 1 of Nomogram for predicting postoperative pulmonary complications in spinal tumor patients

Supplementary Material 1: Appendix: Definitions of variables. Figure S1. Flow chart of inclusion. Figure S2. Distribution of missing values. Figure S3. The linearity of continuous variables with the log odds outcome. Figure S4. Correlations between variables. Figure S5. Analysis of the linear relationship between continuous independent variable and LogitP