Year | 2007 | 2008 | 2009 | 2010 | 2011 | 2014 |
---|---|---|---|---|---|---|
Number of participants | 3,616 | 3,476 | 4,944 | 5,062 | 4,680 | 650 |
Mean age | 10.81 | 10.66 | 10.6 | 10.84 | 9.93 | 13.19 |
Gender ratio (F:M) | 0.53 | 0.51 | 0.51 | 0.52 | 0.52 | 0.5 |
Raw mean prevalence | ||||||
Pooled STH | 0.32 (0.008) | 0.19 (0.007) | 0.27 (0.006) | 0.17 (0.005) | 0.16 (0.005) | 0.18 (0.015) |
Ascaris | 0.14 (0.006) | 0.11 (0.005) | 0.18 (0.005) | 0.10 (0.004) | 0.11 (0.005) | 0.12 (0.013) |
Trichuris | 0.03 (0.003) | 0.02 (0.002) | 0.04 (0.003) | 0.02 (0.002) | 0.02 (0.002) | 0.03 (0.007) |
Hookworm | 0.18 (0.006) | 0.07 (0.004) | 0.08 (0.004) | 0.06 (0.003) | 0.04 (0.003) | 0.04 (0.008) |
Raw mean intensity of infected pupils only | ||||||
Ascaris | 2,667 (397) | 3,624 (624) | 793 (66) | 2,065 (147) | 1,970 (176) | 1,831 (418) |
Trichuris | 177 (41) | 157 (52) | 112 (24) | 143 (33) | 91 (20) | 70 (23) |
Hookworm | 111 (15) | 177 (28) | 85 (6) | 224 (51) | 104 (9) | 282 (151) |
Intensity of Infection (uninfected/light/moderate/heavy): n (%) | ||||||
Ascaris | 3,109/437/62/1 | 3,075/338/54/4 | 4,063/852/27/0 | 4,542/456/57/0 | 4,159/452/60/0 | 575/61/14/0 |
(86/12/2/0) | (89/10/2/0) | (82/17/1/0) | (90/9/1/0) | (89/10/1/0) | (88/9/2/0) | |
Trichuris | 3,488/116/4/0 | 3,412/62/1/0 | 4,728/211/2/0 | 4,969/85/1/0 | 4,578/91/2/0 | 629/21/0/0 |
(97/3/0/0) | (98/2/0/0) | (96/4/0/0) | (98/2/0/0) | (98/2/0/0) | 97/3/0/0 | |
Hookworm | 2,974/633/1/1 | 3,235/236/4/1 | 4,566/375/0/0 | 4,737/313/3/2 | 4,489/182/0/0 | 622/27/0/1 |
(82/18/0/0) | (93/7/0/0) | (92/8/0/0) | (94/6/0/0) | (96/4/0/0) | (96/4/0/0) |