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Table 1 Baseline characteristics between sickle cell anaemia and trait cases and controls in Lomé (Togo) and Bamako (Mali)

From: Diagnostic accuracy in field conditions of the sickle SCAN® rapid test for sickle cell disease among children and adults in two West African settings: the DREPATEST study

Haemoglobin Phenotype

Lomé (Togo), reference = Capillary electrophoresis (n = 295)

Bamako (Mali), Gold Standard = HPLC (n = 240)

Controls

Cases pa

AS

AC

SS

SC

CC

Controls

Cases pa

AS

AC

SS

SC

N = 86 (%)

N = 209 (%)

N = 45 (%)

N = 39 (%)

N = 41 (%)

N = 44 (%)

N = 40 (%)

N = 80 (%)

N = 240 (%)

N = 40 (%)

N = 40 (%)

N = 40 (%)

N = 40 (%)

Age (year)

 

0·842

     

0·523

   

 Median

23·2

23·3

23·4

23·3

11·8

25·7

32·9

25·3

22·4

24·8

17·7

17.1

22·3

 Q1-Q3

21·8–26·6

20·0–28·1

21·2–24·6

21·0–26·2

5·8–22·9

15·4–34·1

23·2–40·4

14·9–31·3

11·9–30·2

17·7–31·4

7·1–28·6

10·4–24·7

16·1–28·6

Sex

 

0·017

    

1

   

 Male

63 (73·3)

122 (58·4)

29 (64·4)

26 (66·7)

21 (51·2)

27 (61·4)

19 (47·5)

31 (38·8)

62 (38·8)

14 (35)

16 (40)

13 (32·5)

19 (47·5)

Site conditions

 Temperature (°C)

<  10−3

     

    

  Minimum

28·8

28·4

29·5

28·4

28·8

28·4

28·4

25·6

25·6

  Q1-Q3

29·5–29·7

28·8–29·7

29·5–30·5

29·5–30·5

28·8–29·5

28·8–28·8

28·4–28·9

25·6

25·6

  Maximum

30·5

35·0

30·5

35·0

30·5

30·5

30·2

25·6

25·6

 Relative Humidity (%)

0·36

          

  Minimum

65

62

65

65

62

62

62

32

32

  Q1-Q3

70–77

70–76

65–77

65–77

70–75

75–76

72–75

32

32

  Maximum

77

77

77

77

77

77

76

32

32

  1. a Comparison between Controls (AA) and the total of Togolese Cases (AS, AC, SS, SC, CC) or Malian Cases (AS, AC, SS, SC)