Table III.
Comparison of probability of distant metastasis and conditional probability of additional distant metastasis to the 5 most common metastatic sites.
| Probability (95% CI) | Conditional probability | |||
|---|---|---|---|---|
| P(Lu) | P(Lu | Bo) | P(Lu | Br) | P(Lu | Li) | P(Lu | Ad) |
| 18.5 (16.8–20.2) | 30.0 (98/327) | 26.6 (66/248) | 29.6 (42/142) | 26.1 (29/111) |
| p-value | <0.01 | <0.01 | <0.01 | 0.08 |
| P(Bo) | P(Bo | Lu) | P(Bo | Br) | P(Bo | Li) | P(Bo | Ad) |
| 16.4 (14.8–18.0) | 26.6 (98/368) | 38.3 (95/248) | 54.2 (77/142) | 42.3 (47/111) |
| p-value | <0.01 | <0.01 | <0.01 | <0.01 |
| P(Br) | P(Br | Lu) | P(Br | Bo) | P(Br | Li) | P(Br | Ad) |
| 12.4 (11.1–13.9) | 17.9 (66/368) | 29.1 (95/327) | 27.5 (39/142) | 40.5 (45/111) |
| p-value | 0.013 | <0.01 | <0.01 | <0.01 |
| P(Li) | P(Li | Lu) | P(Li | Br) | P(Li | Bo) | P(Li | Ad) |
| 7.1 (6.0–8.3) | 11.4 (42/368) | 15.7 (39/248) | 23.5 (77/327) | 25.2 (28/111) |
| p-value | 0.014 | <0.01 | <0.01 | <0.01 |
| P(Ad) | P(Ad | Lu) | P(Ad | Bo) | P(Ad | Li) | P(Ad | Br) |
| 5.6 (4.6–6.6) | 7.9 (29/368) | 14.4 (47/327) | 19.7 (28/142) | 18.1 (45/248) |
| p-value | 0.124 | <0.01 | <0.01 | <0.01 |
Lu, lung; Bo, bone; Br, brain; Li, liver; Ad, adrenal gland; CI, confidence interval. P-value is the result of the test of equality between the probability in the first column from the left and each of the successive conditional probabilities from the second to fifth columns using the Chi-square test. The fraction beside probability P(A) in the first column from the left shows the estimation of its proportion by the division of the number of patients with metastasis to organ A by total patients, and the fractions beside conditional probability P(B|A) show the estimation of the probability of metastasis to organ B conditioned on the metastasis to organ A patients, P(A | B)/P(A).