Association between Red Blood Cell Distribution Width and Diabetic Retinopathy: A 5-Year Retrospective Case-Control Study

<div>The proportion of DM and DR patients in subgroups defined by the quartile of RDW. <i>Q</i>1: 10.9% &lt; RDW ≤ 12.2%, <i>Q</i>2: 12.2% &lt; RDW ≤ 12.75%, <i>Q</i>3: 12.75% &lt; RDW ≤ 13.3%; and <i>Q</i>4: 13.3 &lt; RDW ≤ 19.5%.</div>

Journal of Ophthalmology

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Figure 4

Figure 4: Association between Red Blood Cell Distribution Width and Diabetic Retinopathy: A 5-Year Retrospective Case-Control Study 