Sistem Surveilans Demografi dan Kesehatan (Health and Demographic Surveillance System/HDSS) is a surveillance system that collects population transition data, health status and social transition periodically within a certain period. In 2014, the Faculty of Medicine, Public Health, and Nursing, Gadjah Mada University (UGM) in collaboration with the Sleman Regency government initiated the implementation of HDSS in Sleman Regency called Sleman HDSS. Sleman HDSS is primary funded by the Faculty of Medicine, Public Health, and Nursing (FK-KMK), Universitas Gadjah Mada, Indonesia.

Sleman HDSS conducts data collection once a year with wave 1 data collection carried out in 2015. During 2015-2019, Sleman HDSS has carried out 5 waves of data collection. In the first wave, 5,147 selected households from 216 clusters (census blocks) in all sub-districts in Sleman Regency took part in Sleman HDSS. During the wave 1 (baseline survey) Sleman HDSS collected basic demographic data such as age, gender, education, occupation, health insurance ownership, births, and deaths.

In the second and subsequent waves, Sleman HDSS updated demographic data and collected other health-related data such as communicable and non-communicable diseases, behavioural risk factors, and health care services utilisation. Besides conducting health and demographic surveys, HDSS Sleman conducting several supporting activities such as community service, advocacy for the Sleman Regency government, as well as opening opportunities for researchers to conduct nested research, and opportunities to use HDSS data under applicable regulations.