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. 2017 Aug 10;135(8):871–877. doi: 10.1001/jamaophthalmol.2017.2295

Figure. Sample Nomogram to Predict the Risk of Severe Retinopathy of Prematurity Based on the CHOP ROP Model.

Figure.

A straight line is drawn between the values for birth weight and daily weight gain rate. The intersection of this line with the auxiliary axis is then connected to the value for gestational age. The intersection of this second line with the probability line provides the predicted probability of severe retinopathy of prematurity. If the risk is greater than 0.0140, eye examinations are indicated. CHOP, Children's Hospital of Philadelphia. Reprinted with permission from Binenbaum et al.