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. 2020 May 13;18(5):e06113. doi: 10.2903/j.efsa.2020.6113

Table 5.

Incidence of renal tumours and karyomegaly in male F344/N rats (NTP, 1989)

Dose in μg/kg bw per day Adenomas Carcinomas Adenomas and carcinomas Karyomegaly
0 1/50 (2%) 0/50 (0%) 1/50 (2%) 0/50 (0%)
15 1/50 (2%) 0/50 (0%) 1/50 (2%) 1/50 (2%)
50 6/51 (12%) 16/50 (31%) 20/51 (39%) 51/51 (100%)
150 10/50 (20%) 30/50 (60%) 36/50 (78%) 50/50 (100%)