Fig 2.

Forest plot of factors associated with stage IV disease at presentation. Income represents that a patient's area of residence (on basis of Census 2000 data) had a median household income ≥ $46,000 or < $46,000. Education represents that a patient's area of residence (on basis of Census 2000 data) had ≥ 29% or < 29% of adults who did not attain a high school education. M− represents a lower likelihood of metastatic disease. M+ represents a greater likelihood of metastatic disease. LCL, lower confidence limit; OR, odds ratio; UCL, upper confidence limit.