Table 4 Effect of anthelminthic treatment on mean haemoglobin level (g/l) and prevalence of anaemia (%) among school children in Tikur Wuha Elementary School, northwestern Ethiopia, 2011
Parameters | Number examined | Before treatment | After treatment | Mean haemoglobin increase/percent anaemia decrease | P*-value |
|---|---|---|---|---|---|
Mean haemoglobin | 235 | 127.2 | 130.8 | 3.7 | <0.01 |
Age in years | |||||
5–10 | 80 | 125.1 | 127.2 | 2.1 | <0.01 |
11–15 | 155 | 128.2 | 132.7 | 4.5 | <0.01 |
P**-value | 0.031 | ||||
Sex | |||||
Female | 120 | 126.0 | 129.7 | 3.7 | <0.01 |
Male | 115 | 128.3 | 132.0 | 3.7 | <0.01 |
P**-value | 0.975 | ||||
Infection | |||||
Hookworm | 189 | 126.8 | 130.7 | 3.8 | <0.01 |
S. mansoni | 99 | 125.9 | 128.5 | 2.6 | <0.01 |
A. lumbricoides | 17 | 124.2 | 125.4 | 1.2 | 0.507 |
T. trichiura | 130.3 | 130.9 | 0.6 | 0.386 | |
Single | 160 | 128.7 | 133.0 | 4.3 | <0.01 |
Multiple | 75 | 124.0 | 126.2 | 2.3 | 0.01 |
Nutrition | |||||
Normal | 215 | 129.1 | 131.3 | 2.2 | <0.01 |
Undernourished | 188 | 125.1 | 130.3 | 5.2 | <0.01 |
P**-value | <0.01 | ||||
Prevalence of anaemia | 235 | 21.3 | 16.1 | 25.4 | 0.148 |
Age in years | |||||
5–10 | 80 | 13.8 | 11.3 | 18.1 | 0.633 |
11–15 | 155 | 25.5 | 18.3 | 28.2 | 0.125 |
P**-value | 0.089 | ||||
Sex | |||||
Female | 120 | 25.8 | 17.5 | 32.2 | 0.119 |
Male | 115 | 16.8 | 14.2 | 15.5 | 0.586 |
P**-value | <0.01 | ||||
Infection status | |||||
Hookworm | 189 | 21.7 | 14.3 | 34.1 | 0.061 |
S. mansoni | 99 | 26.3 | 24.2 | 8.0 | 0.744 |
A. lumbricoides | 17 | 17.7 | 17.7 | 0.0 | 1.00 |
T. trichiura | 7 | 14.3 | 14.3 | 0.0 | 1.00 |
Single | 160 | 17.5 | 13.2 | 24.6 | 0.286 |
Multiple | 75 | 29.3 | 22.7 | 22.5 | 0.357 |
Nutrition status | |||||
Normal | 215 | 19.7 | 16.2 | 17.8 | 0.487 |
Undernourished | 188 | 18.5 | 15.9 | 14.1 | 0.248 |
P**-value | 0.359 | ||||