Fig 3. Comparison of thoracic bone metastases between pulmonary and prostate cancers.
The result shows that with an increase of bone metastases, the distribution of thoracic bone metastases of prostate cancer presents a gradually increased tendency (χ2 = 57.4, p = 0.000), but that of pulmonary cancer does not present a significant difference (χ2 = 0.1, p = 0.931).