Table 3. Comparison of nephropathy frequency in the studied groups by ACE and ARB prescription .

Group			Nephropathy		P value
			Yes n = 14	No n = 136
Normal saline receivers	ACE	Yes (n = 50)	8	42	0.44
		No (n = 25)	5	20
	ARB	Yes (n = 4)	0	4	0.45
		No (n = 71)	13	58
NAC receivers	ACE receivers	Yes (n = 29)	0	29	0.61
		No (n = 46)	1	45
	ARB receivers	Yes (n = 11)	0	11	0.85
		No (n = 64)	1	63
Total		Saline normal (n = 75)	13	62	0.001
		NAC receivers (n = 75)	1	74