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Table 1 Characteristics of included studies

From: Guidelines are needed for studies of pre-treatment HIV drug resistance: a methodological study

Variable

Statistic (N = 234)

Year of publication: median (q1; q3)

2013 (2009;2015)

Sample size: median (q1; q3)

239 (101;778)

Income: n (%)

 High

125 (53.4)

 Upper middle

86 (36.8)

 Lower middle

16 (6.8)

 Low

3 (1.3)

 Multiple

4 (1.7)

Region: n (%)

 Africa

7 (3.0)

 America

68 (29.1)

 Eastern Mediterranean

4 (1.7)

 Europe

82 (35.0)

 South East Asia

12 (5.1)

 Western Pacific

56 (23.9)

 Multiplea

5 (2.1)

Funding: n (%)

 Not reported

121 (51.7)

 Government

51 (21.8)

 Multiplea

3 (1.3)

 Industry

19 (8.1)

 Private

40 (17.1)

  1. aBelonging to more than one category