Table 3 Multivariate analysis of rib metastasis in 151 patients with concurrent lesions on bone scans
From: Risk of metastasis among rib abnormalities on bone scans in breast cancer patients
Variables | Rib metastasis (n = 57) | No rib metastasis (n = 94) | Total (n = 151) | P-value1 | OR1 | 95% CI1 | |
|---|---|---|---|---|---|---|---|
Tumor size | ≤2 cm | 8 | 41 | 49 | Reference | ||
2–5 cm | 21 | 34 | 55 | 0.140 | 2.46 | 0.74–8.16 | |
>5 cm | 4 | 2 | 6 | 0.060 | 12.32 | 0.90–168.90 | |
NA | 24 | 17 | 41 | ||||
Lymph node | Negative | 12 | 39 | 51 | Reference | ||
Positive | 33 | 47 | 80 | 0.996 | 1.00 | 0.30–3.38 | |
NA | 12 | 8 | 20 | ||||
Number of rib lesions | 1–2 | 14 | 76 | 90 | Reference | ||
≥3 | 43 | 18 | 61 | 0.054 | 2.62 | 0.99–6.95 | |
Localization | Anterior | 10 | 48 | 58 | Reference | ||
Lateral | 0 | 11 | 11 | / | / | / | |
Posterior | 7 | 17 | 24 | 0.654 | 1.50 | 0.25–8.81 | |
Multiple | 37 | 13 | 50 | 0.167 | 4.55 | 0.53–38.96 | |
NA | 3 | 5 | 8 | ||||
Relationship with the operative site | Ipsilateral | 9 | 51 | 60 | Reference | ||
Contralateral | 10 | 26 | 36 | 0.061 | 5.36 | 0.92–31.15 | |
Bilateral | 37 | 15 | 52 | 0.401 | 2.51 | 0.29–21.56 | |
NA | 1 | 2 | 3 |
