Figure 4From: The effects of sonic hedgehog signaling pathway components on non-small-cell lung cancer progression and clinical outcomeOverall survival curves for 40 non-small-cell lung cancer patients positive or negative for sonic hedgehog expression. Survival was analyzed using the Kaplan-Meier method, and survival differences between the positive and negative groups were compared using a logrank test. Patients with a tumor positive for Shh were found to have significantly poorer survival (P = 0.020).Back to article page