Table 3 Patient distributions according to exon 19 deletion molecular subtype classifications
All del19 patients (n = 26) | ||
|---|---|---|
Number of nucleotide deletion | 15-nucleotide deletion (15n-del) | 21 (80.8%) |
18-nucleotide deletion (18n-del) | 1 (3.8%) | |
Other insertion/substitution (other/mixed ins/sub) | 4 (15.4%) | |
Deletion starting codon | E746 group | 20 (76.9%) |
L747 group | 5 (19.2%) | |
Non-LRE group | 1 (3.8%) | |
LRE or non-LRE | LRE group | 25 (96.2%) |
non-LRE group | 1 (3.8%) | |
ELREA or not | ELREA group | 17 (65.4%) |
non-ELREA group | 9 (34.6%) |