Fig. 2.

The Sp1 level is decreased in premenopausal women with lung cancer and associated with a poor prognosis. The survival rates of older (> = 55 years) and younger (< 55 years) male and female patients with late-stage lung cancer were analyzed by t test (upper panel). The survival rates of older (> = 55 years) (middle panel) and younger (< 55 years) (lower panel) patients with late-stage lung cancer and high and low Sp1 expression were analyzed by Kaplan–Meier survival curves and HR assays