HER2 immunohistochemistry results in diverse cancers
| Variable | N (%) of patients |
|---|---|
| Age, mean ± SD | 67 ± 12.5 years |
| Gender (N = 499) | |
| Male Female | 270 (54%)229 (46%) |
| Number of tumor types tested, N | 42 |
| Inadequate tissue retrieved | 15 (3%) |
| Source of tissue (N = 499) | |
| Biopsy Surgical resection | 329 (66%)170 (34%) |
| IHC levels (N = 484) | |
| 0 1+ 2+ 3+ | 209 (43%)56 (12%)169 (35%)50 (10%) |
| TAT for HER2 expression results (N = 489) | 18 (IQR, 11 to 30) days |
TAT: turnaround time; SD: standard deviation; IQR: interquartile range