Table 4.
Generalized linear model results.
| Factor | DF | F Value | p-value |
|---|---|---|---|
| Outcome: TA_ad | |||
| PATHOLOGIST | 26 | 8.34 | < .0001 |
| CLINICIAN | 45 | 5.63 | < .0001 |
| LOC_FULL_CR | 8 | 646.72 | < .0001 |
| YEAR_VAR | 6 | 6.98 | < .0001 |
| Outcome: TVA | |||
| PATHOLOGIST | 26 | 24.61 | < .0001 |
| CLINICIAN | 45 | 7.1 | < .0001 |
| LOC_FULL_CR | 8 | 47.52 | < .0001 |
| YEAR_VAR | 6 | 12.14 | < .0001 |
| Outcome: HGD | |||
| PATHOLOGIST | 26 | 5.42 | < .0001 |
| CLINICIAN | 45 | 4.26 | < .0001 |
| LOC_FULL_CR | 8 | 11.26 | < .0001 |
| YEAR_VAR | 6 | 7.33 | < .0001 |
| Outcome: HP | |||
| PATHOLOGIST | 26 | 21.96 | < .0001 |
| CLINICIAN | 45 | 5.49 | < .0001 |
| LOC_FULL_CR | 8 | 767.72 | < .0001 |
| YEAR_VAR | 6 | 15.27 | < .0001 |
| Outcome: SSA | |||
| PATHOLOGIST | 26 | 85 | < .0001 |
| CLINICIAN | 45 | 2.69 | < .0001 |
| LOC_FULL_CR | 8 | 161.75 | < .0001 |
| YEAR_VAR | 6 | 60.09 | < .0001 |
“PATHOLOGIST” and “CLINICIAN” are variables that represent individual pathologists and individual submitting physicians/surgeons. “LOC_FULL_CR” is a variable that reperesent the anatomical location; it can be one of nine locations in the colon/rectum (rectum, rectosigmoid colon, sigmoid colon, descending colon, splenic flexure of colon, transverse colon, hepatic flexure of colon, ascending colon, cecum). “YEAR_VAR” is the year in which the specimen was accessioned. “DF” is the degrees of freedom. Tubular adenoma and adenoma NOS (TA_ad) were lumped in this analysis, as a subset of pathologists (early in the study period) signed cases as “adenoma” without further specifying. These are presumed to represent tubular adenomas.