7 ABSTRAK Secara umum ada tiga bentuk respon emosional yang muncul pada pasien dengan penyakit berbahaya seperti kanker, yaitu penolakan, kecemasan dan depresi. Gangguan depresi pada penderita kanker adalah salah satu jenis gangguan jiwa yang paling sering terjadi. Penderita kanker membutuhkan dukungan sosial dari orang orang disekitarnya terutama sahabat untuk meringankan beban stress mereka. Tujuan penelitian adalah untuk menganalisis dukungan sahabat terhadap tingkat depresi pada perempuan yang menderita kanker payudara di RSUD Dr. Pirngadi Medan tahun 2014. Penelitian menggunakan rancangan penelitian kuantitatif dengan pendekatan cross sectional survey. Populasi adalah seluruh perempuan yang menderita kanker payudara yang di rawat jalan dan rawat inap di RSUD Dr. Pirngadi Medan tahun 2014. Sampel diambil secara consecutive pada bulan Mei-Juni 2014 sebanyak 68 orang. Analisa data dengan Chi Square dan regresi logistik berganda. Hasil penelitian menunjukkan bahwa penderita kanker payudara yang tidak depresi 8,8%, depresi ringan 72,1% dan depresi sedang 19,1%. Terdapat pengaruh dukungan emosional (p=0,045), dukungan informasional (p=0,033) dan dukungan integritas sosial (p=0,009) terhadap tingkat depresi. Dukungan yang paling berpengaruh adalah dukungan integritas sosial. Perempuan yang mendapat dukungan integritas sosial yang baik 11,270 kali kemungkinan untuk depresi ringan/tidak depresi dibandingkan perempuan yang mendapatkan dukungan integritas sosial yang tidak baik dari sahabat. Disarankan kepada penderita kanker payudara agar lebih mendekatkan diri dengan sahabat sehingga penderita kanker dapat memperoleh dukungan integritas sosial, informasional, dan dukungan emosional. Pada tenaga kesehatan perlu mengetahui tingkat depresi pada penderita kanker payudara, penderit dengan kategori depresi sedang dianjurkan penanganan ke Psikiater. Kata Kunci : Dukungan Sahabat, Depresi, Penderita Kanker Payudara i 8 ABSTRACT In general, there are three form of emotional response emerging in the patients with dangerous diseases like cancer such as rejection, anxiety and depression. Depression disorder in the patient with cancer is one of the mental disorder that most frequently occurs. The breast cancer patients need social support from the people surrounding them to alleviate their stress. The purpose of this quantitative study with cross-sectional approach conducted from May to June 2014 was to analyze the best friend support on the level of depression in the women breast cancer patients at dr. Pirngadi General Hospital Medan in 2014. The population was all of the women breast cancer patients who became in-patient and out-patient at dr. Pirngadi General Hospital Medan in 2014 and 68 of them were selected to be the samples for this study through consecutive sampling technique. The data obtained were analyzed through Chi-square test and multiple logistic regression tests. The results of this study showed that 8.8% of the breast cancer patients did not experience depression, 72.1% experienced mild depression, and 19.1% experienced medium depression. Emotional support (p=0.045), informational support (p= 0.033), and social integrity support (p=0.009) had influence on the level of depression. The most influencing support was social integrity support. The women receiving good social integrity support was 11.270 times as likely to experience mild depression/no depression compared to the women receiving poor social integrity support from their best friend The breast cancer patients are suggested to be much closer to their best friend that they can receive social integrity, informational and emotional supports. The health workers need to know the level of depression, patient with medium category of depression are suggested to be handled by a Psychiatrist. Keyword: Best Friend, Depression, Breast Cancer patients ii