A cross-sectional descriptive study of treatment costs based on retrospective data retrieved from medical records and payment data for asthma treatment patients aged 16 years and older participating in OAMP for two years at District 11 hospital in the period 2017 - 2020 (for direct medical cost); based on direct interviews with asthma patients, treated at District 11 hospital from February 2021 to May 2021 (for indirect and direct nonmedical cost).