KIIS is monitoring the self-rated health status of the Ukrainian population since 1995, using the question 'How would you rate your health?' with five response options: 'very good,' 'good,' 'moderate,' 'bad,' or 'very bad.' For monitoring purposes, this question is regularly included in KIIS omnibus surveys, which are conducted with a sample representative of Ukraine's adult population (aged 18 and older), typically comprising around 2,000 respondents. Data collected between 1995 and 2023, including 25 polls with a total of 50,377 respondents, were merged into a single dataset. The background information includes respondents' socio-demographic profiles (gender, age, education, nationality, occupation, self-assessment of financial situation) and place of residence (oblast, type of settlement). These data enable the analysis of health changes over time, both within the overall population and among different population groups.