Pattern-Reversal Visual Evoked Potentials Tests in Persons with Type 2 Diabetes Mellitus with and without Diabetic Retinopathy

Table 4

The 60 min and 15 min PRVEP tests parameters in group A and group B according to good glycemic control and poor glycemic control (mean ± SD).

Groups according to the HbA1c level		60 min PRVEP test		15 min PRVEP test
		P100	P100	P100	P100
		Latency (ms)	Amplitude (μV)	Latency(ms)	Amplitude (μV)
Group A	<7.5% (N = 28)	109.5 ± 5.6	12.8 ± 5	120.7 ± 5.5	13.8 ± 5.2
	≥7.5% (N = 72)	108.3 ± 6	9.4 ± 4.1	121.7 ± 6	9.8 ± 5
value		0.337	0.001	0.424	0.001
Group B	<7.5% (N = 12)	114.7 ± 7	6.8 ± 2.3	123.6 ± 6.3	8.4 ± 4.8
	≥7.5% (N = 64)	118 ± 8	8.5 ± 4.2	127.2 ± 3	7.5 ± 4.8
value		0.196	0.176	0.001	0.537

value < 0.05 considered statistically significant.