Fig. 4

a–d Cumulative mortality (OS) in different breast cancer subtypes. The panel illustrates the result of different levels of TILs in a all patients, and patients with the following breast cancer subtypes; b ER+/HER2−; c HER2+; and d TNBC. The patients were allocated to no adjuvant systemic treatment and TILs were categorised as low: < 10%, intermediate: 10–49% and high: ≥ 50%. Abbreviations: ER oestrogen receptor, HER2 human epidermal growth factor receptor 2, OS overall survival, TILs tumour-infiltrating lymphocytes, TNBC triple-negative breast cancer