Table 1.

Summary of the characteristics of the 27 trials.

Characteristics		Value
Year of publication, n (%)
	2007-2009	2 (7)
	2010-2012	4 (15)
	2013-2015	10 (37)
	2016-2019	11 (41)
Study location, n (%)
	North America	13 (48)
	Europe	7 (26)
	Asia	5 (19)
	Africa	2 (7)
Disease studied, n (%)
	Type 2 diabetes	19 (70)
	Hypertension	6 (22)
	Type 2 diabetes and/or hypertension	1 (4)
	Coexisting type 2 diabetes and hypertension	1 (4)
Sample size, median (range)		75 (14-250)
Mean age of participants in years, mean (range)		57.3 (48.4-69.5)
Proportion of male participants in %, median (range)		54 (28-76)
Trial length in months, median (range)		6 (2-12)