Table 1 Characteristics of included studies

 2013

51

45

96 (48)

 2014

40

49

89 (45)

 2015^a

9

6

15 (8)

Study had an explicit objective pertaining to equity

64

55

119 (60)

Study was reported as conducted in a resource-constrained setting^b

40

22

62 (31)

Lower- or middle-income country

28

11

39 (20)

Public hospital

1

2

3 (2)

Conflict zone

1

0

1 (0.5)

Other

13

14

27 (14)

 Students in primary or secondary school

27

11

38 (19)

 Workers

3

3

6 (3)

 Community members

41

36

77 (39)

 Patients

19

46

65 (33)

 Members of a particular professional group, such as health professionals or teachers

3

1

4 (2)

 Other

–

11

11 (6)

 Individuals

100

100 (50)

 Schools

27

27 (14)

 Workplace

3

3 (2)

 Community or community organization

26

26 (13)

 Medical practice

12

12 (6)

 Other

32

32 (16)

 Workplace

5

1

6 (3)

 School

27

10

37 (19)

 Other

68

89

157 (79)

 Studies that reported using special or tailored recruitment to increase enrollment of individuals who are members of socially disadvantaged populations

11

32

43 (22)

 Focused on socially disadvantaged group

78

79

157 (79)

 Universal

18

7

25 (13)

 Both focused and universal

4

14

18 (9)