Figure 3:

Cumulative percentage of multimodality treatment (surgery and systemic therapy) initiation, abandonment and completion in the African Breast Cancer-Disparities in Outcomes (ABC-DO) cohort for each study group and overall. Footnote: Percentages relate to the crude percentage amongst all women per site, unadjusted for death. Due to the x-axis restriction to one year post-baseline (i.e. presentation at the study hospital), endocrine therapy (ET) completion date was coded to 9 months post-baseline for all women who received at least 3 years of continued ET treatment. Date of treatment “Completed” was calculated as date of the 5^th cycle of chemotherapy (CT; CT initiation date+5*mean inter-cycle duration), ET (9 months post-diagnosis), or surgery, whichever came last. Date of treatment “Abandoned” relates to the date of last completed CT cycle (CT initiation date+(number of cycles * mean inter-cycle duration)), ET initiation, or surgery, whichever came last. “Completion unknown” relates to the date of initiated treatment if systemic therapy completion was unknown due to missing medical records. Women who initiated only systemic therapy or surgery monotherapies are counted as “Not initiated”.