Table 2 Analysis of rib metastasis in 324 patients with rib lesions on bone scans
From: Risk of metastasis among rib abnormalities on bone scans in breast cancer patients
Variables | Rib metastasis1 (%) (n = 59) | No rib-metastasis2 (n = 265) | Total (n = 324) | P-value3 | |
|---|---|---|---|---|---|
Tumor size | ≤2 cm | 8 (6.1) | 123 | 131 | 0.001 |
2–5 cm | 21 (17.5) | 99 | 120 | ||
>5 cm | 4 (44.4) | 5 | 9 | ||
NA | 26 | 38 | 64 | ||
Lymph node | Negative | 14 (11.5) | 108 | 122 | 0.072 |
Positive | 33 (19.3) | 138 | 171 | ||
NA | 12 | 19 | 31 | ||
Number of rib lesions | 1–2 | 15 (6.2) | 226 | 241 | <0.001 |
≥3 | 44 (53.0) | 39 | 83 | ||
Concurrent lesions | No | 2 (1.2) | 171 | 173 | <0.001 |
Yes | 57 (37.7) | 94 | 151 | ||
Localization | Anterior | 11 (6.4) | 161 | 172 | <0.001 |
Lateral | 0 (-) | 23 | 23 | ||
Posterior | 8 (13.1) | 53 | 61 | ||
Multiple | 37(64.9) | 20 | 57 | ||
NA | 3 | 8 | 11 | ||
Relationship with the operative site | Ipsilateral | 10 (6.4) | 146 | 156 | <0.001 |
Contralateral | 11 (11.1) | 88 | 99 | ||
Bilateral | 37 (56.9) | 28 | 65 | ||
NA | 1 | 3 | 4 |
