Table 2. Multivariable analyses for the Leuven data (n = 4,228).
Cox regression was used for DRFI and Fine and Gray regression for BCSS.
Abbreviations: BCSS, breast cancer‐specific survival; CI, confidence interval; DRFI, distant recurrence‐free interval; pN0, pathologic lymph node status negative; pN1, 1–3 lymph nodes involved according to pathologic data; pN>1, more than three lymph nodes involved according to pathologic data; pNx, pathologic lymph node status unknown; PR, progesterone receptor; sHR, subdistribution hazard ratio.