Figure 1

Overall survival by patient group and GST Pi expression. Overall survival in four patient groups: those with high GST Pi who received adjuvant chemotherapy, those with low GST Pi who received chemotherapy, those with low GST Pi who did not receive chemotherapy, and those with high GST Pi who did not receive chemotherapy. Differences between the first three groups were not statistically significant (lowest p = 0.11) whereas differences between all of those groups and the fourth group were significant (all p < 0.01)