Table 2.

Mean values of Plasma Cholinesterase (ChE) and Serum MDA levels in different grades of OP poisoning cases and control subjects:

Study groups	Plasma ChE	Serum MDA
	(U/L)	(nmol/ml)
Controls	6286 ± 912.53	1.05 ± 0.37
(n=30)
Grade I	4586.4 ± 259.9**	1.97 ± 0.39**
(n=26)
Grade II	3506 ± 234.7**	2.13 ± 0.55**
(n=27)
Grade III	2462 ± 239.2**	2.16 ± 0.52**
(n=31)
Grade IV	1390 ± 254**	2.39 ± 0.61**
(n=34)
Grade V	614 ± 211**	2.52 ± 0.64**
(n=32)

Data presented are Mean ± SD;

^**indicates P< 0.001 - highly significant.