Table 2.

Adjusted associations of socioeconomic indicators with patterns of colorectal cancer screening among Medicare enrollees in 2000 and 2005: MCBS

CharacteristicsStudy year: odds ratios (95% confidence interval)
2000 (n = 8,355)2005 (n = 7,646)
Endoscopy >5 yFOBTRecent endoscopyEndoscopy >5 yFOBTRecent endoscopy
Race-ethnicity
    Whites1.00 (reference)1.00 (reference)1.00 (reference)1.00 (reference)1.00 (reference)1.00 (reference)
    Blacks0.83 (0.57-1.19)0.84 (0.62-1.13)1.06 (0.88-1.30)0.69 (0.47-1.02)0.80 (0.54-1.20)1.11 (0.86-1.45)
    Hispanics0.94 (0.56-1.57)1.08 (0.69-1.70)1.06 (0.72-1.55)0.71 (0.52-0.98)0.83 (0.56-1.24)0.89 (0.68-1.15)
    Others0.59 (0.33-1.08)0.88 (0.61-1.25)0.61 (0.43-0.85)0.78 (0.51-1.18)0.67 (0.41-1.07)0.74 (0.55-1.00)
Less than high school diploma vs higher (reference) stratified on health insurance*
    Part B only0.37 (0.20-0.70)0.57 (0.33-0.96)0.55 (0.40-0.77)0.86 (0.49-1.50)0.58 (0.34-0.99)0.66 (0.44-0.98)
    Medicaid0.47 (0.24-0.90)0.48 (0.31-0.76)1.30 (0.88-1.94)0.75 (0.43-1.31)0.77 (0.46-1.27)0.82 (0.56-1.19)
    Health maintenance organization0.72 (0.49-1.08)0.46 (0.32-0.68)0.58 (0.44-0.76)0.54 (0.33-0.90)0.65 (0.40-1.06)0.48 (0.35-0.67)
    Employer-sponsored0.87 (0.61-1.23)0.59 (0.43-0.80)0.68 (0.55-0.85)0.69 (0.47-1.01)0.72 (0.46-1.13)0.49 (0.38-0.64)
    Self-purchased0.85 (0.54-1.34)0.74 (0.57-0.98)0.67 (0.53-0.85)0.76 (0.47-1.21)0.77 (0.48-1.23)0.64 (0.48-0.87)
Income <$25,000 compared with those earning ≥$25,000 (reference) stratified on place of residence
    Residence in a non-MSA1.07 (0.76-1.48)0.67 (0.45-0.99)0.68 (0.55-0.84)0.93 (0.73-1.19)1.04 (0.69-1.57)0.74 (0.58-0.95)
    Residence in a MSA0.64 (0.50-0.83)0.70 (0.57-0.86)0.52 (0.44-0.61)0.82 (0.63-1.05)0.71 (0.56-0.91)0.68 (0.57-0.80)
  • *Estimates derived from multinomial logistic regression models analyses with those who had only FOBT >2 y previously or have never previously been screened as the reference group. The models were simultaneously adjusted for insurance type, usual place of health care, delayed care due to cost, language of the interview, residence in a MSA, race-ethnicity, gender, marital status, age, educational achievement, household income, self-reported general health status, and history of non–skin cancers.

  • Estimates for the beneficiaries income stratified on place of residence with income >$25,000 as reference within each place of residence stratum.