Table 2.

Mean values and standard deviations (SD) of N200 and P300 parameters in different types of migraine patients and in the control group (CG).

ERP	Mean ± SD				p-values
	MwoA (n = 55)	MwA (n = 40)	MAwH (n = 23)	CG (n = 55)	MwoA vs CG	MwA vs CG	MAwH vs CG	MwoA vs MwA	MwoA vs MAwH	MwA vs MAwH
Latency (ms)
N200 Fz	223.3 (32.0)	248.7 (37.6)	231.4 (31.0)	209.0 (20.9)	0.098	<0.001	0.003	0.001	0.603	0.989
Cz	224.0 (32.2)	248.9 (37.2)	234.1 (31.3)	208.1 (20.7)	0.100	≤0.05	0.223	0.003	0.001	1.000
Pz	225.1 (31.3)	249.7 (37.0)	238.2 (30.9)	208.9 (19.1)	0.635	≤0.05	0.05	<0.001	0.001	1.000
P300 Fz	330.2 (26.4)	347.8 (18.4)	334.4 (16.1)	307.2 (17.2)	<0.001	<0.001	<0.001	0.001	1.000	0.165
Cz	334.9 (23.8)	351.2 (17.6)	336.0 (17.3)	312.1 (21.5)	<0.001	<0.001	0.001	0.001	1.000	0.068
Pz	337.9 (24.7)	352.3 (19.3)	338.0 (8.4)	314.8 (26.1)	<0.001	<0.001	0.001	0.005	1.000	0.154
Amplitude (μV)
N200 Fz	3.28 (1.64)	4.89 (2.24)	5.35 (1.96)	4.51 (2.83)	0.078	<0.001	0.001	<0.001	0.913	1.000
Cz	2.90 (1.44)	4.64 (2.06)	4.80 (1.76)	3.84 (3.01)	0.040	<0.001	<0.001	0.001	0.339	1.000
Pz	2.61 (1.26)	4.21 (2.31)	4.74 (2.53)	3.09 (2.24)	0.031	<0.001	<0.001	0.002	0.118	1.000
P300 Fz	5.86 (2.56)	8.18 (3.44)	9.38 (3.50)	7.37 (3.42)	0.091	1.000	0.106	0.007	<0.001	0.914
Cz	5.41 (2.15)	7.92 (3.39)	8.58 (3.34)	7.05 (2.97)	0.015	1.000	0.280	0.001	<0.001	1.000
Pz	4.90 (2.59)	7.26 (3.65)	8.36 (2.56)	7.00 (2.99)	0.017	1.000	0.067	0.007	<0.001	0.277

CG, control group; MwoA, migraine without aura; MwA, migraine with aura; MAwH, migraine aura without headache; SD, standard deviation; Fz, frontal region; Cz, central region; Pz, parietal region.

Statistically significant changes (p < 0.05). Significant p values are bolded.