Kaplan–Meier survival analysis of correlations between expression of interferon γ receptor (IFNGR1; n=410), cytoplasmic STAT1 (n=402), nuclear STAT1 (n=402) and disease-specific survival (DSS)
| Marker | Expression | Number | Mean DSS (months) | 95% CI (months) | p Value |
| IFNGR1 | Low | 164 | 65.2 | 57.1 to 73.4 | |
| High | 246 | 66.4 | 59.2 to 72.2 | 0.96 | |
| Cytoplasmic STAT1 | Negative | 60 | 62.6 | 49.1 to 76.3 | |
| Positive | 345 | 74.7 | 69.3 to 80.1 | 0.14 | |
| Nuclear STAT1 | Negative | 330 | 70.0 | 64.4 to 75.1 | |
| Positive | 72 | 86.6 | 76.4 to 96.3 | 0.008 |