Table 3.

Unadjusted and adjusted HR estimates and 95% CIs of the association between insurance status and time to initial diagnostic follow-up after a positive screening mammogram for women younger than 65 years and women 65 years and older between 1995–2010

UnadjustedAdjustedb
Insurance statusHR (95% CI)PaHR (95% CI)Pa
Age <65 y
 No insurance0.59 (0.33–1.06)0.080.47 (0.25–0.89)0.02
 Medicaid only0.75 (0.44–1.28)0.280.81 (0.46–1.42)0.46
 Medicare only0.86 (0.44–1.67)0.650.95 (0.47–1.91)0.88
 Medicare & Medicaid0.63 (0.32–1.24)0.180.50 (0.24–1.02)0.06
 Medicare & private2.16 (1.07–4.38)0.031.81 (0.86–3.83)0.12
 Private only (referent)1.00 (—)1.00 (—)
Age 65+ y
 Medicare only0.89 (0.66–1.20)0.440.97 (0.70–1.34)0.83
 Medicare & Medicaid0.79 (0.49–1.27)0.330.99 (0.57–1.74)0.99
 Medicare & private (referent)1.00 (—)1.00 (—)
 Private only1.92 (1.22–3.03)0.0052.09 (1.27–3.44)<0.01
  • aAll P values are 2-sided, and α < 0.05 was considered statistically significant.

  • bThe adjusted model includes race, education, breast density, categorical age, history of breast biopsy, family history of breast cancer, and facility type.