Number of participants (n)

RF (%)

Reference number

Africa

Low frequency

DRC

39

72

44.9

34.7

[61]

[32]

Nigeria

200

38.5

[22]

Zimbabwe

49

37.0

[72]

High frequency

Senegal

180

87.2

[63]

South Africa

120

81.7

[42]

Senegal

100

78.0

[17]

Burkina Faso

30

70.0

[43]

Western

Syria

156

62.9

[26]

France

512

61.7

[26]

UK

404

<42.6

[29]

France

813

42.2

[62]

France

661

44.5

[66]