Table 5.

Correlation of RNFL and macular thickness with serum uric acid among type 2 diabetes mellitus patients

Quadrants / Subfields	Serum uric acid (μmol/L)
	No DR		NPDR
	r	p-value	r	p-value
RNFL thickness (μm)
Superior	−0.078	0.467	−0.113	0.288
Inferior	−0.146	0.169	−0.086	0.419
Temporal	0.064	0.548	−0.067	0.532
Nasal	−0.034	0.751	−0.069	0.519
Macular thickness (μm)
Fovea	0.012	0.912	0.219	0.038
Superior inner	−0.095	0.374	0.034	0.749
Superior outer	−0.110	0.304	−0.019	0.857
Inferior inner	−0.063	0.552	0.264	0.012
Inferior outer	−0.225	0.033	0.016	0.885
Temporal inner	0.000	0.999	0.176	0.097
Temporal outer	−0.113	0.287	0.073	0.493
Nasal inner	−0.013	0.903	0.066	0.538
Nasal outer	−0.085	0.426	0.010	0.929

Pearson correlation; r: correlation coefficient, p-value <0.05 significant

DR Diabetic Retinopathy, NPDR Non-Proliferative Diabetic Retinopathy, RNFL Retinal Nerve Fibre Layer