Table 1 Number of publications identified by topic

Population group

• Women

5

[13, 18, 21, 24, 25]

• Children

10

[7, 16, 19, 22, 26–29, 31, 32]

• Women & Children

3

[23, 30, 47]

• Population

2

[11, 33]

Iodine Sources

4

[5, 11, 17, 20]

Study regions^b

• Nationwide

3

[13, 16, 17]

• Tigray

2

[5, 33]

• Amhara

3

[29–31]

• Oromia

5

[7, 11, 18, 20, 21]

• Addis Ababa

1

[34]

• Southern Nations Nationalities and Peoples Region (SNNPR)

7

[22–28]

• Benshangul-Gumuz

1

[32]

• More than two regions

2

[19, 47]

ID Aggravating factors

• Cassava intake

2

[24, 47]