Exposured | ER-negative patientsc (n = 676) 155 IBR events | ER-negative patients with breast conservationc (n = 332) 55 IBR events | ER-negative patients with mastectomyc (n = 339) 100 IBR events |
---|---|---|---|
 | HR (95% CI) |  |  |
Age < 50 | (reference) | (reference) | (reference) |
Age 50–70 | 0.82 (0.56–1.22) | 0.95 (0.49–1.85) | 0.70 (0.43–1.15) |
Age 70 +  | 1.33 (0.78–2.26) | 0.74 (0.23–2.40) | 1.31 (0.72–2.38) |
SIMD 1a | (reference) | (reference) | (reference) |
SIMD 2 | 1.45 (0.91–2.31) | 0.87 (0.39–1.95) | 1.93 (1.07–3.47) |
SIMD 3 | 1.88 (1.19–2.96) | 1.24 (0.57–2.67) | 2.15 (1.20–3.47) |
SIMD 4 | 0.93 (0.53–1.65) | 0.87 (0.35–2.20) | 1.00 (0.48–2.10) |
SIMD 5 | 2.10 (1.18–3.73) | 1.24 (0.57–2.67) | 3.03 (1.41–6.53) |
TNM stage 1 | (reference) | (reference) | (reference) |
TNM stage 2/3 | 1.47 (0.86–2.50) | 1.33 (0.66–2.66) | 2.06 (0.71–5.96) |
Grade 1/2b | (reference) | (reference) | (reference) |
Grade 3 | 1.25 (0.77–2.03) | 2.05 (0.78–5.41) | 1.28 (0.72–2.28) |
Not screen detected | (reference) | (reference) | (reference) |
Screen detected | 0.63 (0.36–1.09) | 0.98 (0.46–2.08) | 0.30 (0.10–0.84) |
Breast-conserving surgery | (reference) | – | – |
Mastectomy | 2.66 (1.75–3.77) | – | – |
Chemotherapy | 1.24 (0.73–2.10) | 0.94 (0.38–2.33) | 1.49 (0.76–2.90) |
Radiotherapy | 1.96 (1.28–3.00) | 0.17 (0.07–0.41) | 2.59 (1.57–4.02) |