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Table 1 Breast cancer-specific survival by detection mode

From: Breast density and breast cancer-specific survival by detection mode

  Person years N totala N breast cancer deaths (%) HR adjusted for age (95% CI) P-value
Screen-detected cancer 13,183 1257 149 (11.9) 1.00 (Ref.)  
Interval cancer ≤24 months 5627 557 129 (23.2) 2.06 (1.62–2.61) < 0.001
Interval cancer > 24 months 4299 604 154 (25.5) 3.00 (2.37–3.79) < 0.001
Non-participant cancer 2097 324 104 (32.1) 4.18 (3.25–5.39) < 0.001
  1. a Follow-up time of 11 participants was censored before the first death occurred in the stratum