Table 2.

Models for all-cause survival and breast cancer specific survival fitted with (top set) and without (bottom set) inclusion of ZCTA SES data

Model 1.1a: Local Isolation and povertyModel 1.2a: Local Exposure and povertyModel 1.3a: Full LEx/Is and povertyModel 1.4a: LQ and povertyModel 1.5a: ICE with Race and income
HR (95% CI)HR (95% CI)HR (95% CI)HR (95% CI)HR (95% CI)
All cause survival
Black segregation0.99 (0.97–1.01)0.87 (0.71–1.07)0.77 (0.55–1.09)0.32 (0.03–3.74)
Hispanic segregation1.04 (1.01–1.08)0.91 (0.73–1.14)1.40 (0.97–2.14)184.9 (1.03.475.9)
Black-Hispanic exposure (LEx/Is only)1.01 (0.98–1.04)1.29 (0.85–1.96)
Breast cancer-specific survival
Black segregation0.98 (0.95–1.01)1.01 (0.78–1.29)0.68 (0.42–1.10)0.511 (0.02–13.8)
Hispanic segregation1.03 (0.98–1.08)1.06 (0.80–1.40)1.32 (0.79–2.19)9.39 (0.13–640.9)
Black-Hispanic exposure (LEx/Is only)1.01 (0.95–1.04)0.95 (0.56–1.60)
Model 1.1b: Local isolation onlyModel 1.2b: Local exposure onlyModel 1.3b: Full LEx/Is onlyModel 1.4b: LQ onlyModel 1.5b: ICE with race (no income)
HR (95% CI)HR (95% CI)HR (95% CI)HR (95% CI)HR (95% CI)
All cause survival
Black segregation1.00 (0.98–1.02)0.97 (0.81–1.17)0.99 (0.74–1.33)0.66 (0.49–0.89)
Hispanic segregation1.05 (1.01–1.09)1.02 (0.83–1.25)1.73 (1.21–2.47)2.29 (1.49–3.48)
Black-Hispanic exposure (LEx/Is only)1.03a (1.00–1.07)1.07 (0.72–1.57)
Breast cancer-specific survival
Black segregation1.00 (0.97–1.02)1.12 (0.90–1.39)0.95 (0.64–1.41)0.65 (0.44–0.94)
Hispanic segregation1.04a (0.99–1.09)1.19 (0.92–1.52)1.72 (1.08–2.47)2.43 (1.43–4.10)
Black-Hispanic exposure (LEx/Is only)1.02 (0.98–1.06)0.77 (0.49–1.24)
  • NOTE: Segregation hazard ratio magnitude cannot be directly compared across models with different metrics, due to differences in unit definition.

  • All models were adjusted for patient race, age, and stage. Models 1.1a, 1.2a, 1.3a, 1.4a controlled for ZCTA poverty level. Bolded indicates significance at 95% confidence (P < 0.05).

  • aP < 0.10.