Fig. 3

A ROC for the diagnostic ability of MPV, PDW and Albumin for BD (BD vs. healthy controls). ROC curves for MPV, PDW and Albumin values for the diagnosis of BD. PDW: AUC 0.789 (95% CI = 0.781 to 0.796), P < 0.001; MPV: AUC 0.731 (95% CI = 0.723 to 0.739), P < 0.001; Albumin: AUC 0.708 (95% CI = 0.699 to 0.716), P < 0.001. (B) Risk factors of BD nomogram. (Code of sex, 1: male, 2: female) (To use the nomogram, an individual patient’s value is located on each variable axis, and a line is drawn upward to determine the number of points received for each variable value. The sum of these numbers is located on the Total Points axis, and a line is drawn downward to the Risk of BD axes to determine the BD risk). BD: bipolar disorder; AUC: area under the ROC curve, MPV: mean platelet volume; PDW, platelet distribution width