Table 1.

Experimental design. Tumor incidence is summarized by dose and quartile. A complete dataset at the tank level is included in the supporting information (Table S-1).

Experiment quarter	DBP dose (ppm diet)	Replicate groups necropsied	Animals necropsied	Histological liver neoplasia	Incidence	Stomach neoplasia	Incidence
1	0	23	2097	2	0.00095	5	0.00236
2	0	22	2056	4	0.00195	5	0.00236
3	0	25	2348	2	0.00085	1	0.00043
4	0	21	1862	2	0.00107	4	0.00200
1	0.45	24	2139	1	0.00047	9	0.00420
2	0.45	22	2021	4	0.00198	3	0.00148
3	0.45	25	2380	2	0.00084	5	0.00210
4	0.45	25	2208	5	0.00226	3	0.00136
1	1.27	14	1280	4	0.00313	2	0.00138
2	1.27	18	1672	5	0.00299	4	0.00234
3	1.27	19	1814	1	0.00055	3	0.00165
4	1.27	19	1663	2	0.00120	3	0.00180
1	3.57	8	737	9	0.01221	4	0.00513
2	3.57	14	1253	11	0.00878	7	0.00559
3	3.57	14	1327	8	0.00603	2	0.00151
4	3.57	14	1218	9	0.00739	3	0.00246
1	10.1	3	275	9	0.03273	1	0.00364
2	10.1	4	361	25	0.06925	1	0.00277
3	10.1	5	488	27	0.05533	2	0.00410
4	10.1	5	434	24	0.05530	4	0.00922
1	28.4	2	182	25	0.13736	11	0.06044
2	28.4	3	278	73	0.26259	11	0.03957
3	28.4	4	387	48	0.12403	19	0.04909
4	28.4	4	364	95	0.26099	15	0.04121
1	80	2	190	88	0.46316	65	0.342
2	80	2	186	91	0.48925	46	0.247
3	80	3	292	144	0.49315	76	0.260
4	80	3	263	138	0.52471	86	0.327
1	225	1	93	63	0.67742	68	0.731
2	225	1	85	56	0.65882	71	0.835
3	225	2	180	100	0.55556	127	0.706
4	225	2	183	99	0.54098	129	0.705