Group | Number of cases | SF (ng/ml) |
New diagnosed | 40* | 473.3 ± 119.4 |
stage III | 22*# | 391.3 ± 64.5 |
stage IV | 18* | 540.4 ± 112.5 |
Healthy control | 40 | 123.2 ± 52.2 |