“…There are several accepted factors which increase breast cancer recurrence and mortality which can be categorised into patient, tumour and treatment characteristics (Adami, Malker, Holmberg, Persson, & Stone, 1986;Carter, Allen, & Henson, 1989;Dasgupta et al, 2017;Fisher, Slack, & Bross, 1969;Joensuu et al, 2004;Koscielny et al, 1984;Li, Uribe, & Daling, 2005;Newman, 2009;Siegel, Miller, & Jemal, 2017;Tapia et al, 2017). These characteristics include patient age, ethnicity, tumour type, size, grade, stage, hormone receptor status, type of surgery and use of adjuvant therapies (Adami et al, 1986;Anders et al, 2008;Carter et al, 1989;Dasgupta et al, 2017;Fisher et al, 1969;Joensuu et al, 2004;Koscielny et al, 1984;Li et al, 2005;Newman, 2009;Siegel et al, 2017;Tapia et al, 2017;Youl et al, 2016).…”