Relationship between tumor p53 status and annual household income in the adjusted analysis.

OR = odds ratio; CI = confidence interval; IHC = immunohistochemistry *Trend test. Shown is the OR for the stepwise increase in household income (reference: low income). Income coded as 0 (< $15,000), 1 ($15,000 to $60,000), and 2 (> $60,000); adjustments: smoking (pack years), age, and body mass index (BMI) were used as continuous data; other covariates were dichotomized for the analysis, as shown in Table 1 **adjusted for race/ethnicity, node status, tumor estrogen receptor status, and tumor grade