HUBUNGAN DUKUNGAN KELUARGA DAN SELF CONCEPT TERHADAP KUALITAS HIDUP PADA PASIEN POST MASTEKTOMI DI RSUD JENDERAL AHMAD YANI KOTA METRO TAHUN 2025

ABSTRACT
In 2020, there were 2.3 million women worldwide diagnosed with breast cancer, with a total of 685,000 deaths globally. Breast cancer is the most common cancer among women in 173 out of 183 countries (95%). In 2024, during the months of December to April, there were 100 post-mastectomy and post-chemotherapy patients. This study aims to determine the relationship between family support and self-concept on the quality of life of post-mastectomy patients at RSUD Jenderal Ahmad Yani Kota Metro. The study uses a descriptive design with a cross- sectional approach. The population consisted of 100 post-mastectomy patients at RSUD Jenderal Ahmad Yani Kota Metro. Using the Lameshow formula, a sample of 50 respondents was selected through purposive sampling. Data collection was conducted from May 31 to June 13, 2025. The research instruments included a quality of life questionnaire, a family support questionnaire, and a self-concept questionnaire. The results showed that most respondents were women aged 36–45 years, totaling 18 (36.0%). Those with good family support were 40 respondents (80.0%), those with a good self-concept were 35 respondents (70.0%), and those with a good quality of life were 35 respondents (70.0%). The conclusion is that good family support and a positive self-concept are positively related to the quality of life of post-mastectomy patients. The study recommends increasing the role of families and healthcare providers in offering encouragement, making patients feel valued, and fostering a positive self-concept in patients.