Table 1 Malaria indicators identified in cross-sectional surveys (October 2010 and July 2011) in the villages of Binko and Carrière, Selingué Health District, Mali
Malaria indicators | October | July | ||||
|---|---|---|---|---|---|---|
Binko | Carrière | p | Binko | Carrière | p | |
n = 255 | n = 221 | n = 473 | n = 196 | |||
Prevalence of parasitemia, n (%) | 76 (29.8) | 107 (52) | <0.01 | 113 (23.8) | 35 (18.9) | 0.15 |
Prevalence of symptomatic malaria, n (%) | 7 (9.2) | 17 (15.9) | <0.01 | 5 (4.4) | 5 (4.3) | 0.14 |
Parasite species, n (%) | ||||||
P. falciparum | 72 (94.7) | 107 (94.0) | 0.63 | 108 (95.6) | 33 (89.2) | 0.15 |
P. falciparum + P. malariae | 4 (5.3) | 8 (6.0) | 5 (4.4) | 4 (10.8) | ||
P. falciparum density (parasites/µl) n (%) | ||||||
1 to 1000 | 44 (57.9) | 50 (46.7) | <0.01 | 108 (95.6) | 30 (85.7) | 0.01 |
1001 to 5000 | 20 (26.3) | 31(29.0) | 0.84 | 5 (4.4) | 4 (11.4) | 0.12 |
>5000 | 12 (15.8) | 26 (24.3) | 0.16 | 0 (0.0) | 1 (2.9) | 0.24 |
P. falciparum geometric mean per µl (IQR) | 50 (24–77) | 35 (14–37) | 0.2 | 108 (72–117) | 271 (81–362) | 0.01 |
Gametocyte carriers (%) | 7.8 | 6.8 | 0.89 | 1.9 | 6.7 | <0.01 |
Anemia, n (%) | ||||||
Mild anemia (7.5 g/dl < hb < 9.5) | 47 (18.4) | 60 (27.2) | 0.02 | 77 (16.2) | 32 (16.6) | 0.98 |
Severe anemia (hb < 7.5 g/dl) | 25 (9.8) | 16 (7.2) | 0.32 | 22 (4.7) | 7 (3.6) | 0.53 |
Total prevalence of anemia | 72 (28.2) | 76 (34.4) | 0.14 | 99 (20.9) | 39 (20.2) | 0.99 |