Table 3

Top 10 African countries in terms of childhood immunization research productivity normalized by selected variables

Rank

Country

Number (%)

Population

Gross domestic product

Total expenditure on health


1

South Africa

346 (21.1)

The Gambia

The Gambia

South Africa

2

Nigeria

154 (9.4)

Guinea-Bissau

Guinea-Bissau

Nigeria

3

The Gambia

104 (6.3)

Sao Tome and Principe

Sao Tome and Principe

Kenya

4

Egypt

99 (6.0)

Seychelles

Zimbabwe

Egypt

5

Kenya

87 (5.3)

South Africa

Malawi

The Gambia

6

Senegal

70 (4.3)

Senegal

Liberia

Senegal

7

Ghana

54 (3.3)

Djibouti

Togo

Ethiopia

8

Zimbabwe

46 (2.8)

Cape Verde

Senegal

Tanzania

9

Ethiopia

44 (2.7)

Gabon

Burkina Faso

Ghana

10

Burkina Faso, and Uganda

40 (2.4)

Namibia

Guinea

Burkina Faso


Wiysonge et al. BMC Medicine 2013 11:66   doi:10.1186/1741-7015-11-66

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