Delayed initiation of adjuvant chemotherapy among women with breast cancer in Addis Ababa, Ethiopia.

Purpose: Chemotherapy within 90 days following surgery for non-metastatic breast cancer is the standard of care. There are no data, however, on the extent of time to initiation of chemotherapy (TTC) in Africa settings, including Ethiopia.

Methods: A total of 223 women with stage I-III breast cancer treated with surgery and adjuvant chemotherapy during 2017-2019 in Addis Ababa, Ethiopia, were included in the analysis. Based on information from medical records, we calculated TTC from date of surgery and completion of planned chemotherapy, with TTC > 90 days considered delayed and receipt of 85% of planned therapy as complete. Multivariable Poisson regression with robust variance was used to assess whether TTC > 90 days was associated with sociodemographic or clinical factors.

Results: The median TTC was 63 days. Chemotherapy initiation was delayed in 30% (95% CI 24.4-36.6%) of patients, with the risk significantly higher in low-income women. For example, the risk of delay in women with lowest quartile family monthly income group (US$ < 61) was 3.98 (95% CI 1.67-9.46) higher than in those women with highest quartile family income group (US$ > 194). Remarkably, adjuvant chemotherapy was completed in 95% of patients.

Conclusions: A staggering one-in-three women with breast cancer in Addis Ababa, Ethiopia, delay to initiation of adjuvant chemotherapy, with the delay more common in low-income women and yet with remarkably high degree of treatment adherence. These findings underscore the need for public policy to expand health care to low-income population to improve breast cancer care and other health outcomes in the country.