Effects of repetitive transcranial magnetic stimulation on electroencephalogram and memory function in patients with mild cognitive impairment

Table 4 Comparison of event-related potential-P300 latency and amplitude between the two groups

	Latency (ms)		t value	P value	Amplitude (uv)		t value	P value
	Before treatment	After treatment			Before treatment	After treatment
Control group (n = 82)	338.31 ± 18.79	341.34 ± 16.42	1.100	0.273	3.45 ± 0.99	3.63 ± 1.27	1.101	0.313
Research group (n = 98)	341.21 ± 16.47	312.18 ± 14.07	13.267	< 0.0001	3.48 ± 1.00	5.66 ± 1.20	13.816	< 0.0001
t value	1.103	12.831			0.201	11.006
P value	0.271	< 0.0001			0.841	< 0.0001

Measurement data were conducted using the t-test.