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. 2012 Oct 30;5(1):391–397. doi: 10.3892/ol.2012.1005

Table II.

Comparison of bone metastasis distribution between breast and prostate carcinomas.

Few bone metastases
Extensive bone metastases
Bca (n=151)
Pca (n=58)
Bca (n=989)
Pca (n=1781)
Metastatic position n % n % χ2 P-value n % n % χ2 P-value
Vertebrae and pelvis 63 41.7 47 81.0 27.6 0.000 405 41.0 866 48.6 15.1 0.000
Thoracic skeleton 99 65.6 16 27.6 24.8 0.000 498 50.4 919 51.6 0.4 0.530

n, the lesion number of bone metastases; Bca, breast carcinoma; Pca, prostate carcinoma. Vertebrae and pelvis includes the thoracic vertebrae, lumbar vertebrae, sacrococcyx, ilium, ischium and pubis. Thoracic skeleton includes the sternum, collar bone, ribs, scapula and thoracic vertebrae. Chi-square test of likelihood ratio was performed to compare the proportions of metastatic bone lesions in breast and prostate carcinomas.