Table 2. Latency and SSR^a Amplitude in the lower extremities of the old poliomyelitis patients and the control group.

	Poliomyelitis patients	n	Mean+SD		n	Mean+SD	P value
Latency (Second)	Affected side	52	1.96+0.18	Control	40	1.95±0.16	0.690
	Non-affected side	27	1.93+0.13				0.710
Amplitude (Millivolt)	Affected side	52	0.66+0.29	Control	40	1.25+0.34	0.001
	Non-affected side	27	1+0.36				0.036

^a SSR was absent in one affected foot.