International Journal of Academic and Applied Research (IJAAR)   Year: 2023 | Volume: 7 | Issue: 6 | Page No.: 17-21 Estimation of Life Function in Coronary Heart Disease Patients to Determine the Best Treatment Method Download PDF Shintia Puji Utami, Shalwa Oktavrilia Kusuma, Nadhira Safa Kamiilah, Toha Saifudin Abstract: Based on the observations by the Global Burden of Disease and also by the Institute for Health Metrics and Evaluation (IHME), in 2014-2019, heart disease is the highest cause of death in Indonesia. The BPJS for 2021 states that the biggest expenditure is on heart disease. Due to this conflict, this study was carried out. This study contained survival analysis utilizing exponential distribution for censored data type 1 in patients with coronary heart disease to model a single sample and determine the survival of sufferers of the disease. The data used are secondary data about the patient's lifetime which is included in parametric methods, patient status (alive/dead), and the treatment applied, namely ring and bypass. In analysis uses, the hazard function, the reliability function, and mean time to failure. Then, the result shows that a treatment bypass is better to be applied than a treatment ring since the risk is lower.