Barriers to Access to Treatment for Hypertensive Patients in Primary Health Care of Less Developed Northwest China: A Predictive Nomogram

Figure 5

Calibration curves of the nomogram in the training set (a) and validation set (b). The x-axis represents the predicted untreated risk. The y-axis represents the actual identified untreated patients. The diagonal dotted line represents a perfect prediction by an ideal model. The solid line represents the performance of the nomogram, of which a closer fit to the diagonal dotted line represents a better prediction.

(a)

(b)