Early detection of peripheral neuropathy in patients with diabetes mellitus type 2

Table 4 Optical coherence topography (OCT) in studied groups

Variable	Group	Mean ± S. D	F	p
Total thickness (μm)	Group 1	110.70 ± 3.04	271.978	0.001*	P1	0.001*
	Group 2	105.28 ± 5.68			P2	0.001*
	Group 3	79.33 ± 4.53			P3	0.001*
Superior RNFL (μm)	Group 1	114.32 ± 5.42	0.842	0.436	P1	0.645
	Group 2	113.35 ± 5.81			P2	0.416
	Group 3	116.04 ± 8.32			P3	0.205
Inferior RNFL (μm)	Group 1	109.54 ± 2.11	2675.600	0.001*	P1	0.001*
	Group 2	99.45 ± 1.90			P2	0.001*
	Group 3	67.87 ± 1.59			P3	0.001*
Temporal RNFL (μm)	Group 1	115.48 ± 3.43	2441.391	0.001*	P1	0.001*
	Group 2	98.15 ± 2.45			P2	0.001*
	Group 3	49.70 ± 3.29			P3	0.001*
Nasal RNFL (μm)	Group 1	103.24 ± 2.72	0.133	0.876	P1	0.838
	Group 2	103.07 ± 3.02			P2	0.611
	Group 3	102.82 ± 2.07			P3	0.760

RNFL retinal nerve fiber layer, (μm) micrometer, P1 post hoc significance between group 1 and 2, P2 post hoc significance between group 1 and 3, P3 post hoc significance between group 2 and 3
* means statistically significant