Figure 1. Percentage of Ranibizumab-Treated Eyes with Improvement in Diabetic Retinopathy Severity from Baseline.
Percentage of eyes demonstrating improvement in diabetic retinopathy at each annual visit at which study photographs were required, by baseline DR subgroup. The number of evaluable study eyes at each visit is listed and error bars represent the Clopper-Pearson exact confidence limits. Percentage of eyes improved were stable over time using the generalized score trend test (test for trend). NPDR = non-proliferative diabetic retinopathy, PDR = proliferative diabetic retinopathy.