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. Author manuscript; available in PMC: 2018 Jul 1.
Published in final edited form as: Br J Ophthalmol. 2016 Nov 15;101(7):960–964. doi: 10.1136/bjophthalmol-2016-309514

Table 3.

Mixed model multivariate analysis of capillary perfusion index

Factor Estimates p Value
Grade of retinopathy
 None–mild NPDR Reference
 Moderate–severe NPDR −2.744   0.033*
 PDR −4.314   0.003*
logMAR BCVA   0.244 0.947
Type 2 DM −1.541 0.246
HLD −1.154 0.345
ETDRS ring
 Inner ring Reference
 Outer ring 10.548 <0.001*
*

p Values <0.05.

BCVA, best-corrected visual acuity; DM, diabetes mellitus; HLD, hyperlipidaemia; logMAR, logarithm of the minimum angle of resolution; NPDR, non-proliferative diabetic retinopathy; PDR, proliferative diabetic retinopathy.