Table 1.

Summary of the characteristics of the included studies.

Characteristic			Value (N=128), n (%)
Income level of countries
	High income	54 (42.2)
	Upper-middle income	25 (19.5)
	Lower-middle income	38 (29.7)
	Low income	11 (8.6)
Disease
	Hypertension	47 (36.7)
	Diabetes	63 (49.2)
	Hypertension and diabetes	18 (14.1)
Study design
	Cross-sectional	70 (54.7)
	Cohort	26 (20.3)
	Interventional	24 (18.8)
	Implementation	8 (6.2)
Participants
	Health receivers	116 (90.6)
	Health providers	4 (3.1)
	Health receivers and providers	8 (6.3)
Research methods
	Quantitative	104 (81.3)
	Qualitative	11 (8.6)
	Mixed	13 (10.1)
Outcomes
	Implementation	29 (22.7)
	Service	16 (12.5)
	Client	83 (64.8)