Table 3

Causes of death in preterm rats (unscheduled sacrifice) in all groups

Treatment groupsan = 168 rats
SS (17)SF (19)ES (34)EF (35)EC (39)SC (24)
1. Primary neural tumor012014100
2. Primary tumor with hydrocephalus441176
3. LGL leukemia metastatic to CNS111000
4. Extraneural tumor1097131614
5. Extraneural nontumor lesions002201
6. Nontumor CNS lesions000010
7. No lesion detected243553
  • a Numbers in parentheses, numbers of rats.