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Table 2 Prevalence of Plasmodium falciparum trophozoites, anti-CSP antibodies and antimalarial drugs detected in children between two and nine years of age.

From: Antimalarial drug use in general populations of tropical Africa

ID Site Nb of thick smears Prevalence of trophozoites (all species) Prevalence of Plasmodium falciparum trophozoites Prevalence of anti-CSP antibodies Detection of antimalarial drugs in children's urines
   Nb of thick smears +
(%)
Nb of thick smears +
(%)
Nb of serology Nb of serology +
(%)
CQ* PYR†
       CQ+‡ Prevalence
(95% CI)
PYR+§ Prevalence
(95% CI)
1 100 26 (26.0) 25 (25.0) 100 13 (13.0) 36 36.0 (26.6–46.2) 0 0.0 (0.0–3.6)
2 105 17 (16.2) 17 (16.2) 105 10 (9.5) 18 18.0 (11.0–26.9) 0 0.0 (0.0–3.6)
3 111 21 (18.9) 19 (17.1) 110 13 (11.8) 16 14.5 (8.5–22.5) 0 0.0 (0.0–3.3)
4 120 23 (19.2) 22 (18.3) 118 12 (10.2) 56 47.5 (38.2–56.9) 0 0.0 (0.0–3.1)
5 101 54 (53.5) 47 (46.5) 100 25 (25.0) 26 25.7 (17.6–35.4) 2 2.0 (0.2–7.0)
6 100 79 (79.0) 72 (72.0) 100 55 (55.0) 20 20.0 (12.7–29.2) 0 0.0 (0.0–3.6)
7 100 86 (86.0) 79 (79.0) 100 48 (48.0) 9 9.0 (4.2–16.4) 0 0.0 (0.0–3.6)
8 103 89 (86.4) 83 (80.6) 103 75 (72.8) 14 14.0 (7.9–22.4) 0 0.0 (0.0–3.6)
9 84 60 (71.4) 57 (67.9) 84 39 (46.4) 18 21.4 (13.2–31.7) 0 0.0 (0.0–4.3)
10 110 78 (70.9) 66 (60.0) 110 51 (46.4) 10 9.1 (4.4–16.1) 0 0.0 (0.0–3.3)
11 102 90 (88.2) 90 (88.2) 104 93 (89.4) 47 46.1 (36.2–56.2) 1 1.0 (0.0–5.3)
12 102 93 (91.2) 88 (86.3) 102 98 (96.1) 33 33.7 (24.4–43.9) 0 0.0 (0.0–3.7)
13 102 41 (40.2) 41 (40.2) 104 21 (20.2) 98 90.7 (83.6–95.5) 1 0.9 (0.0–5.1)
14 102 42 (41.2) 38 (37.3) 105 22 (21.0) 89 80.2(71.5–87.1) 0 0.0 (0.0–3.3)
15 100 69 (69.0) 68 (68.0) 101 24 (23.8) 60 61.9 (51.4–71.5) 0 0.0 (0.0–3.7)
16 117 100 (85.5) 99 (84.6) 115 82 (71.3) 18 16.7 (10.2–25.1) 0 0.0 (0.0–3.4)
17 102 79 (77.5) 78 (76.5) 102 88 (86.3) 18 20.0 (12.3–29.8) 1 1.1 (0.0–6.0)
18 102 98 (96.1) 98 (96.1) 105 93 (88.6) 18 18.4 (11.3–27.5) 0 0.0 (0.0–3.7)
19 101 88 (87.1) 88 (87.1) 104 78 (75.0) 31 31.3 (22.4–41.4) 0 0.0 (0.0–3.7)
20 104 55 (52.9) 53 (51.0) 104 30 (28.8) 66 68.8 (58.5–77.8) 1 1.0 (0.0–5.7)
21 101 65 (64.4) 55 (54.5) 99 23 (23.2) 49 51.0 (40.6–61.4) 20 20.8 (13.2–30.3)
22 103 83 (80.6) 80 (77.7) 66 25 (37.9) 89 89.0 (81.2–94.4) 0 0.0 (0.0–3.6)
23 101 79 (78.2) 72 (71.3 99 46 (46.5) 35 34.7 (25.5–44.8) 1 1.0 (0.0–5.4)
24 101 65 (64.4) 59 (58.4) 99 32 (32.3) 68 67.3 (57.3–76.3) 0 0.0 (0.0–3.6)
25 100 52 (52.0) 41 (41.0) 86 16 (18.6) 91 87.5 (79.6–93.2) 0 0.0 (0.0–3.5)
26 101 86 (85.1) 74 (73.3) 102 29 (28.4) 56 55.4 (45.2–65.3) 0 0.0 (0.0–3.6)
27 99 83 (83.8) 81 (81.8) 48 8 (16.7) 28 27.2 (18.9–36.8) 0 0.0 (0.0–3.5)
28 104 87 (83.7) 84 (80.8) 95 21 (22.1) 42 39.6 (30.3–49.6) 0 0.0 (0.0–3.4)
29 103 81 (78.6) 76 (73.8) 103 22 (21.4) 25 24.3 (16.4–33.7) 0 0.0 (0.0–3.5)
30 107 91 (85.0) 86 (80.4) 107 34 (31.8) 78 72.9 (63.4–81.0) 2 1.9 (0.2–6.6)
Total 3088 2060 (66.7) 1936 (62.7) 2980 1226 (41.1) 1262 41.3 (39.6–43.0) 29 1 (0.6–1.4)
  1. Nb: number; %, percent, *CQ: Chloroquine, † PYR: Pyrimethamine, ‡ CQ+ = number of samples with chloroquine in urine, § PYR+: number of samples with pyrimethamine in urine, Prevalence: expressed in percent.