[Clinical guidelines and other practices for improving quality of care by health plans from the perspective of their operators in Brazil].

This study aimed to characterize the implementation of clinical guidelines and other instruments and practices for health care quality improvement among health plan operators in Brazil. It was a national cross-sectional descriptive study, initially considering 1,573 health plan operators registered in the National Agency for Supplementary Health Care. The sample design was complex, stratified by macro-region, market segment, and number of beneficiaries. Ninety health plan operators agreed to participate and were interviewed. To obtain estimates for the universe of health plan operators, a sample expansion factor attributed per stratum was considered. Only 32.3% of the health plan operators implemented clinical guidelines, with important variation across regions and market segments. Clinical governance practices are still in the very initial stages. Challenges are presented with regard to health care incorporation as a dimension of management within health care organizations, including health plan operators. Initiatives to improve quality of care need to be integrated and conducted at the organizational level.