Table 3.
Estrogen Receptor (ER) Quantitative Measures: Association with Common Prognostic Indicators in the Population-based Subcohort Sample.
| Quantitative Measure | Tumor Size (cm) | Positive Nodes | Tumor Grade | |||
|---|---|---|---|---|---|---|
| Mean | Median | Mean | Median | Mean | Median | |
| ER Percent: | ||||||
| 1–59% | 2.5 | 2.1 | 0.9 | 0 | 2.2 | 2.0 |
| 60–89% | 2.3 | 1.6 | 2.2 | 0 | 1.9 | 2.0 |
| 90% | 1.9 | 1.5 | 1.3 | 0 | 1.8 | 2.0 |
| 91–96% | 2.1 | 1.7 | 0.9 | 0 | 1.8 | 2.0 |
| 97%+ | 1.9 | 1.5 | 1.1 | 0 | 1.7 | 2.0 |
| p-trenda | .001 | .08 | .001 | |||
| ER Intensity: | ||||||
| 1 | 2.5 | 1.8 | 1.1 | 0 | 1.9 | 2.0 |
| 2 | 2.0 | 1.5 | 1.7 | 0 | 1.7 | 2.0 |
| 3 | 2.2 | 1.8 | 1.2 | 0 | 1.8 | 2.0 |
| p-trend | .71 | .79 | .41 | |||
a
Trend test for relationship between ER quantitative measures (left column) and continuous measures of tumor size, positive node count, and grade (Chi-Square or Fisher’s Exact Test)