Table 2.
Logistic regression model results. P-values < 0.5 are highlighted in bold.
| Variable | Odds ratio | p-value | 95% CI |
|---|---|---|---|
| False negative discordance model | |||
| Tumor size | 1.1 | 0.42 | 0.84–1.5 |
| Tumor histologic type | |||
| Ductal (reference) | |||
| Lobular | 1.6 | 0.52 | 0.4–7.1 |
| Tumor grade | |||
| 1 (reference) | |||
| 2 | 1.0 | 0.99 | 0.3–3.4 |
| 3 | 1.1 | 0.90 | 0.3–4.7 |
| Multifocal | |||
| No (reference) | |||
| Yes | 3.5 | 0.02 | 1.3–9.9 |
| Lymphovascular invasion | |||
| No (reference) | |||
| Yes | 0.6 | 0.53 | 0.2–2.6 |
| Lymph node stage | |||
| 0 (reference) | |||
| 1mi | 0.9 | 0.95 | 0.1–8.6 |
| 1a | 2.1 | 0.15 | 0.8–5.6 |
| 2a | 2.4 | 0.40 | 0.3–17.3 |
| Estrogen receptor status | |||
| Positive (reference) | |||
| Negative | 0.4 | 0.48 | 0.04–4.4 |
| Progesterone receptor status | |||
| Positive (reference) | |||
| Negative | 0.9 | 0.86 | 0.2–3.2 |
| HER2 status | |||
| Negative (reference) | |||
| Equivocal | 0.9 | 0.93 | 0.1–7.5 |
| Positive | 0.4 | 0.47 | 0.05–3.9 |
| Patient age > 50 | |||
| No (reference) | |||
| Yes | 0.46 | 0.1 | 0.2–1.1 |