Table 4.

Mixed model multivariate analysis of capillary perfusion index by ETDRS zone adjusted for BCVA, type 2 DM, HLD and with Bonferroni adjusted p values

	None–mild NPDR	Moderate–severe NPDR				PDR
ETDRS field	Crude mean perfusion	Crude mean perfusion	Estimates	p Value	Adjusted p value	Crude mean perfusion	Estimates	p Value	Adjusted p value
Central foveal	1.57	1.45	−0.058	0.818	1.000	1.17	−0.323	0.258	1.000
Inner inferior	39.52	36.31	−3.849	0.038*	0.343	31.81	−7.802	<0.001*	0.004*
Inner nasal	38.99	35.78	−3.523	0.070	0.629	32.32	−5.978	0.007*	0.066
Inner superior	39.25	35.44	−4.031	0.008*	0.071	32.86	−6.346	<0.001*	0.003*
Inner temporal	39.91	34.80	−5.216	0.010*	0.093	32.36	−6.787	0.003*	0.031*
Outer inferior	41.74	39.94	−1.619	0.284	1.000	37.68	−3.076	0.073	0.655
Outer nasal	39.38	38.99	−1.275	0.492	1.000	38.42	−0.860	0.678	6.102
Outer superior	40.13	39.76	−0.452	0.719	1.000	39.81	0.243	0.862	7.758
Outer temporal	41.62	39.20	−2.179	0.129	1.000	37.88	−2.370	0.141	1.269

^*p Values <0.05.

BCVA, best-corrected visual acuity; DM, diabetes mellitus; HLD, hyperlipidaemia; NPDR, non-proliferative diabetic retinopathy; PDR, proliferative diabetic retinopathy.