Fig. 3From: Developing a predictive nomogram for colposcopists: a retrospective, multicenter study of cervical precancer identification in ChinaCalibration plots of observed frequency and predicted probability for the predictive model in the training, internal and external validation sets. (E:O, the observed divided by expected number, with a number close to 1 showing good model fit; CITL, calibration-in-the-large; AUC, area under the curve)Back to article page