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Table 2 Characteristics and antibody levels and prevalence to antigens in villagers from Dielmo and Ndiop 200

From: Practical example of multiple antibody screening for evaluation of malaria control strategies

 

Dielmo

Ndiop

2002

2013

%Change5

2002

2013

%Change5

No1

75

 

86

  

M/F

26/49

 

29/57

 

HbAA/AS/C1

67/7/1

 

74/8/4

 

Age of Individuals

30.3 [3.8–80]

41.5 [14.9–91.5]

 

26.8 [3.4–68.1]

37.8 [14.4–79.1]

 

No < 15y2

20

 

28

 

IgG SE < 15y3

4.9 [1.2–9]

3.6 [1–8.2]

− 27%

3.6 [1.0–6.7]

2.5 [1.0–5.4]

–31%

IgG SE > 15y

6.1 [1.3–11.1]

4.8 [1.2–11.4]

− 21%

4.7 [1.0–7.8]

4.1 [1.0–7.1]

–12%

IgG SE all individuals

5.8 [1.2–11.1]

4.5 [1–11.4]

− 22%

4.3 [1.0–7.8]

3.6 [1.0–7.1]

–17%

Prev. SE < 15y

85%

75%

− 12%

82%

54%

–25%

Prev. SE > 15y

96%

93%

− 4%

84%

84%

0%

IgG LSA1 < 15y4

1.5 [0.04–9.1]

0.4 [0.02–1.7]

− 72%

0.7 [0.02–7.4]

0.5 [0.02–4.1]

–24%

IgG LSA1 > 15y

1.8 [0.04–12.6]

1.1 [0.02–6.0]

− 42%

2.3 [0.03–12.6]

1.8 [0.02–16.3]

–18%

IgG LSA1 all individuals

1.8 [0.04–12.6]

0.9 [0.02–6.0]

− 49%

1.8 [0.03–12.6]

1.5 [0.02–16.3]

–19%

Prev. LSA1 < 15y

80%

75%

− 6%

61%

54%

–12%

Prev. LSA1 > 15y

85%

73%

− 15%

86%

78%

–10%

IgG MSP1 < 15y4

0.9 [0.09–3.2]

0.4 [0.02–2.0]

− 58%

1.6 [0.02–12.9]

1.2 [0.03–12.1]

–26%

IgG MSP1 > 15y

4.3 [0.02–10.7]

2.9 [0.04–12.0]

− 33%

4.1 [0.2–16.2]

3.3 [0.05–16.6]

–10%

IgG MSP1 all individuals

3.4 [0.02–10.7]

2.9 [0.02–12.0]

− 35%

3.3 [0.02–16.2]

2.6 [0.03–16.6]

–21%

Prev. MSP1 < 15y

60%

30%

− 50%

61%

46%

–24%

Prev. MSP1 > 15y

85%

91%

+ 3%

88%

79%

–10%

  1. 1Number of individuals present both in the 2002 and the 2013 survey; type of haemoglobin
  2. 2Number of individuals under 15 years old in 2002
  3. 3IgG responses measured by ELISA expressed in OD ratio: mean [range]
  4. 4IgG responses measured by ELISA expressed as 103 MFI: mean [range]
  5. 5% change of prevalence/IgG levels between 2002 and 2013