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Table 1 Details of participation, gender ratio, age distribution, ethnicity breakdown, altitude range, bednet usage, malaria prevalence and study design for each site that provided data to the study

From: Genetic determinants of anti-malarial acquired immunity in a large multi-centre study

Study location

Number of participantsa

Gender (%)

Age (%)

Ethnicityb (%)

Altitude range (m)

Bednet usage (%)

Malaria prevalence (%)

Timings of clinical data collection

Male

<1

1–2

2–5

5–15

15–30

>30

NA

  

Slide-positive

NA

Senegal

497

45.7

1.8

3.4

10.7

37.6

21.5

24.9

–

Wolof:

Serer:

Peulh:

Serer Niominka:

Mandigue:

Other:

35.6

33.4

10.7

10.1

6.0

4.2

15–51

–

14.7

85.3c

LS with ACD; TS; 2006/2007

Mali

(Pongonon)

312

53.5

–

3.2

36.2

54.5

2.2

3.8

–

Dogon:

Other:

95.2

4.8

49–352

–

100

–

CS & CES; TS; 2006/2007

Mali

(Manteourou)

643

43.4

–

–

10.6

37.6

21.5

24.9

–

Dogon:

Peulh:

51.2

48.8

267–280

–

24.6

–

CS; TS; 2006/2007

Burkina Faso

1,897

43.4

2.7

3.1

13.2

34.9

23.8

22.3

–

Peulh:

Mossi:

Rimaibe:

Other:

38.9

32.4

27.4

1.3

304–305

16.5

44.3

2.5

CS; TS & IDS; 2007/2008

Sudan

84

36.6

–

–

–

44.0

34.5

20.2

1.2

Hausa:

Masalit:

51.2

48.8

183–381

–

–

100c

LS & CS; TS & IDS; 2007/2008

Kenya

1,809

52.0

–

–

–

100

–

–

–

Giriama:

Chonyi:

Kauma:

Mjikenda:

Other:

78.3

13.1

5.4

1.3

1.9

0

90.8

16.6

–

BCS

Tanzania

(Moshi)

6,084

40.7

6.2

4.8

16.8

33.9

21.2

16.7

0.4

Pare:

Wasambaa:

Chagga:

Wabondei:

Other:

40.9

36.1

14.3

7.9

0.8

196–1,845

–

15.6

0.5

CS; TS; 2006/2007

Tanzania

(Tanga SP1)

623

43.2

0.3

2.6

25.7

63.8

7.5

–

–

Wasambaa:

Mzigua:

Muha:

Other:

65.8

10.8

3.4

20.0

223–700

54.6

22.6

–

CS; TS; 2001/2002

Tanzania

(Tanga SP2)

552

47.5

3.4

2.0

9.2

51.6

23.7

10.0

–

Wasambaa:

Mdigo:

Mmakonde:

Mzigua:

Mseguju:

Wabondei:

Pare:

Other:

35.0

30.2

5.4

5.1

4.7

4.2

4.2

11.2

0–1,009

28.6

37.7

–

CS; TS; 2004

Sri Lanka

798

49.5

–

–

–

0.5

37.1

62.2

0.3

99.4

Other: 0.6

99.4

0.6

55–397

95.7

0

–

LS with ACD; 1992/1993; samples collected 2006/2007

  1. NB: ACD active case detection, BCS birth cohort study, CES chloroquine efficacy study, CS cross-sectional study, IDS intermittent dry season, LS longitudinal study, TS transmission season.
  2. aNumber of participants for whom clinical data, genetic data and antibody data could be matched.
  3. bEthnic groups with fewer than 20 individuals are recoded as “other”.
  4. cThese studies obtained data on microscopic-detectable infection in few (n = 81; Senegal) or none (Sudan) of their participants at the time of sampling.
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Malaria Journal

ISSN: 1475-2875

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