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. Author manuscript; available in PMC: 2018 Jan 25.
Published in final edited form as: JAMA Ophthalmol. 2017 Mar 1;135(3):244–251. doi: 10.1001/jamaophthalmol.2016.5774

Table 2.

Patient Demographics and Clinical Measurements

Characteristic Mean (SD) Value
Healthy Controls Patients With DM but Without DR Patients With DR
Patients, No. 12 11 31
Eyes, No. 16 20 41
Age, y 58.8 (10.1) 57.9 (8.1) 62.8 (13.4)
Blood pressure, mm Hg
 Systolic 115 (17) 125 (7) 121 (16)
 Diastolic 72 (7) 81 (6) 70 (13)
 Mean 87 (10) 95 (8) 87 (13)
Intraocular pressure, mm Hg 13.0 (2.2) 15.8 (2.4) 14.9 (2.5)
Ocular perfusion pressure, mm Hg 74 (9) 79 (6) 73 (12)
Axial eye length, mm 23.5 (1.1) 24.1 (1.4) 24.0 (1.1)
Total retinal blood flow, μL/min 44.4 (8.3) 40.1 (7.7) 39.6 (15.4)

Abbreviations: DM, diabetes mellitus; DR, diabetic retinopathy.