Table 1.
Information abstracted via human annotation from the national random sample of 600 pathology reports. Because this analysis focused on urothelial carcinoma, data on grade, invasion, presence of muscularis propria, and presence of carcinoma in situ was only annotated for the 517 reports with urothelial carcinoma.
| Variable | Abstracted via Human Annotations |
|---|---|
| Value | N (%) |
| Histology (n=600) | |
| Not from Bladder | 22 (3.7) |
| No Cancer | 36 (6.0) |
| Urothelial Carcinoma | 517 (86.2) |
| PUNLMP | 5 (0.8) |
| Other Histology* | 20 (3.3) |
|
| |
| Grade (n=517) | |
| Low | 159 (30.8) |
| Intermediate | 37 (7.2) |
| High | 299 (57.8) |
| Undifferentiated | 1 (0.2) |
| Not stated / missing | 21 (4.1) |
|
| |
| Carcinoma in situ (n=517) | |
| Present | 62 (12.0) |
| Explicitly absent | 7 (1.4) |
| Not mentioned | 448 (86.7) |
|
| |
| Invasion presence versus absence (n=517) | |
| Non-invasive | 225 (43.5) |
| Suspected invasion | 9 (1.7) |
| Invasive | 230 (44.5) |
| Not stated / missing | 53 (10.3) |
|
| |
| Invasion depth among reports with invasion or suspected invasion (n=239) | |
| Lamina propria | 134 (56.1) |
|
| |
| Muscularis propria | 82 (34.3) |
| Perivesical / Other Organ | 17 (7.1) |
| Not stated / missing | 6 (2.5) |
| Muscularis propria in specimen (n=517) | |
| Present | 358 (69.2) |
| Not present | 103 (19.9) |
| Not stated / missing | 56 (10.8) |
*
Other histology included squamous cell carcinoma, adenocarcinoma, small cell carcinoma, undifferentiated carcinoma, unspecified carcinoma, among others. PUNLMP = Papillary Urothelial Neoplasm of Low Malignant Potential.