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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.