Table 1.

Inclusion and exclusion criteria for identifying hypertension and quality indicator-relevant studies

Population	Concept	Context	Types of sources
Clinical care of patients with hypertension Exclusion criteria: hypertension in pregnancy and juvenile hypertension.	Used or proposed quality indicators. Explain the numerator and denominator or provide a clear description for each quality indicator. No exclusion.	Any healthcare facilities (hospital, primary care or clinic). Any type of indicators (input, process or output). Any level of indicators (patients, institutions and health systems). Any countries. No exclusion.	All research designs: observational studies, randomised control trials, systematic reviews, case studies, qualitative studies, clinical guidelines. Exclusion criteria: publication in the form of editorials, letters to the editor, comments and case reports or narrative case reports.