Table 3. Treatment effects upon number and size of ACF.

Group	Treatment	Mice (n)	No. of ACF per colon	No. of ACF per 104 crypts	No. of aberrant crypts per ACF
1	Water only	5	0.40±0.24	0.09±0.04	0.60±0.28
2	DMSO only	5	0.20±0.20	0.07±0.04	0.40±0.25
3	Continuous 1% λCgN	5	0.80±0.20	0.21±0.04	1.60±0.34
4	Continuous 4% λCgN	5	1.00±0	0.25±0.005	2.40±0.24
5	MNU only	10	3.90±0.23	1.37±0.015	4.00±0.17
6	MNU+1 × 7-day cycle 1% λCgN	10	5.00±0.29	1.67±0.18	4.00±0.16
7	MNU+1 × 7-day cycle 4% λCgN	10	4.90±0.23	1.56±0.14	5.90±0.21
8	MNU+3 × 7-day cycle 1% λCgN	10	5.80±0.24	2.04±0.14	6.58±0.33
9	MNU+3 × 7-day cycle 4% λCgN	10	6.70±0.21	2.52±0.39	5.80±0.17
10	MNU+continuous 1% λCgN	10	5.00±0.25	1.65±0.14	5.90±0.22
11	MNU+continuous 4% λCgN	10	6.80±0.29	2.95±0.21	5.38±0.26

ACF=aberrant crypt foci; DMSO=dimethylsulphoxide; λCgN= lambda carrageenan; MNU=N-methyl-N-nitrosourea.