Table 2. Kaplan-Meier survival analysis for primary liver cancer-specific survival in SEER database.
| Characteristic | MST/OS (months) |
Kaplan-Meier | MST/CSS (months) |
Kaplan-Meier | ||
|---|---|---|---|---|---|---|
| Log Rank χ2 test |
P | Log Rank χ2 test |
P | |||
| Gender | 7.088 | 0.008 | 0.785 | 0.376 | ||
| Male | 8 | 10 | ||||
| Female | 8 | 11 | ||||
| Age | 390.08 | < 0.001 | 387.11 | < 0.001 | ||
| ≤ 60 | 10 | 13 | ||||
| > 60 | 7 | 8 | ||||
| Race | 324.04 | < 0.001 | 269.54 | < 0.001 | ||
| White | 8 | 10 | ||||
| Black | 6 | 8 | ||||
| Asian/Pacific Islander | 11 | 15 | ||||
| American Indian /Alaska Native |
8 | 10 | ||||
| Unknown | 19 | 28 | ||||
| Marital Status | 526.86 | < 0.001 | 378.12 | < 0.001 | ||
| Married | 10 | 12 | ||||
| Divorced/Separated | 8 | 10 | ||||
| Widowed | 5 | 6 | ||||
| Single | 6 | 9 | ||||
| Grade | 1668.8 | < 0.001 | 1497.62 | < 0.001 | ||
| High/ Moderate | 17 | 22 | ||||
| Poor/Undifferentiation | 5 | 6 | ||||
| Unknown | 6 | 8 | ||||
| Histotype | 237.032 | < 0.001 | 361.59 | < 0.001 | ||
| Hepatocellular carcinoma | 8 | 11 | ||||
| Cholangiocarcinoma | 5 | 6 | ||||
| Combined | 6 | 7 | ||||
| SEER Stage | 7437.67 | < 0.001 | 7738.67 | < 0.001 | ||
| Localized | 19 | 27 | ||||
| Regional | 6 | 7 | ||||
| Distant | 2 | 2 | ||||
| Unknown | 3 | 4 | ||||
| Therapy | 7174.26 | < 0.001 | 6442.10 | < 0.001 | ||
| Surgery, radiation or both | 32 | 44 | ||||
| No surgery, radiation | 4 | 5 | ||||
| Unknown | 9 | 12 | ||||
Abbreviations
MST, median survival time; OS, overall survival; CSS, cause-specific survival; SEER, Surveillance, Epidemiology and End Results.