Beta-carotene prevention of Rat colon tumors. To see, use: http://corpet.net/min
Data ranked by Year
Corpet D.E. & Pierre F. 2005, Eur.J.Cancer
TREATMENT  dose  diet	Author, year  (click name  for abstract)->	No. tumor   bearing rats  Controls	Total no.  of rats  Controls 	No. tumor   bearing rats  Treated	Total no.  of rats  Treated 	RR	p	Potency  on tumor  incidence	Tumor  percent  inhibition	Protocol	Ro-  dents	Carcinogen  N x dose	weeks
B-carotene 1%	Colacchio 86->3789912	27	28	28	28	1.04	NS	0.96	-4	both	Rh'	dmh 16x30	20
B-carotene 22 ppm vs 2 	Temple 87->3473257	23	31	12	32	0.50	*	2.00	50	both	Ms"	dmh 7x28	31
B-carotene 0.2%	Imaida 90->2245410	9	20	3	15	0.44	NS	2.25	56	post	Rf'	dmh 3x40	52
B-carotene 50 ppm	Yamamot. 94->7954354	23	30	11	20	0.72	NS	1.39	28	both	Rs'	dmh 12x20	26
Z							p	95%CI low	95%CI high				
Z  Total  / meta RR &  p		82	109	54	95	0.76	0.006	0.61	0.93