The Relationship Between Chemotherapy Management and Quality of Life in Breast Cancer Patients in Yogyakarta

Breast cancer, one of the most prevalent cancers in women, has a high mortality rate. Chemotherapy is commonly used to stop cancer growth, but it significantly affects patients' quality of life. While several studies have reported on the impact of adjuvant chemotherapy on the quality of life in breast cancer patients aged 20-80 with grades 1-4, limited research focuses on grade 2-3 patients aged 40-50, as measured by the QLQ C-30. Using random consecutive sampling, this study investigates the relationship between chemotherapy and quality of life in grade 2-3 breast cancer patients aged 40-50 in Yogyakarta. Quality of life is assessed through the QLQ C-30 questionnaire, with data analyzed by the unpaired t-test method at a 95% confidence level (p < 0.05). Results show a significant decrease in the overall quality of life (p = 0.000) but no significant differences in function (p = 0.152) and symptom scales (p = 0.15). Respondents not undergoing chemotherapy reported a better general quality of life than those receiving treatment.