Predictive model and nomogram development
TRD, diabetic vitrectomy, tractional retinal detatchment, low vision
REGRESSION, LOW VISION
In the training cohort of 200 eyes, low vision occurred in 89 eyes (44.5%). Considering the practical clinical application, we stratified three continuous variables: age (≤55 years old, >55 years old), symptom duration (<6 months, ≥6 months), and eGFR (<60 mL/min/1.73 mStepwise multivariate logistic regression for long-term low vision after diabetic vitrectomy.TRD, tractional retinal detatchment; m, months; where The variance inflation factor of each predictor in this model was<10, indicating there was no multicollinearity among the independent variables. The cutoff score that maximized the Youden index was 0.495 (sensitivity, 62.9%; specificity, 78.4%).Then a nomogram was depicted to present the logistic prediction model (Nomogram for predicting long-term low vision after diabetic vitrectomy.