Analisis Hubungan Karakteristik dan Budaya Pasien Diabetes Mellitus yang Mengalami Amputasi Kaki dengan Kualitas Hidup dalam Konteks Asuhan Keperawatan Pasien Diabetes Mellitus di DKI Jakarta = Correlation Analysis between Characteristics and Culture of Patient with Diabetic Foot Amputation, with Their Quality of Life in Context of Nursing Care of Patient with Diabetes Mellitus in DKI Jakarta