borderline significancep = 0.07
The age at the time of recurrence (≥ 65 years) had borderline significance for PFS ( p = 0.07).
The age at the time of recurrence (≥ 65 years) had borderline significance for PFS ( p = 0.07).
In the multivariable analysis for PFS, age at recurrence ≥ 65 years, disease-free interval < 24 months, non-luminal A subtype, and in-field failure (marginally significant) were found to be risk factors (RFs).