Effect of anthelminthic treatment on helminth infection and related anaemia among school-age children in northwestern Ethiopia

Table 3 Factors affecting mean haemoglobin levels (g/l) and prevalence of anaemia among 403 school-age children at baseline in Tikur Wuha Elementary School, northwestern Ethiopia, 2011

Explanatory variables	Mean haemoglobin level β^a (95 % CI)	Prevalence of anaemia aOR^b (95 % CI)
Age (continuous)	1.08 [0.59, 1.57]	1.13 [0.99, 1.28]
Males vs females	−0.92 [−3.29, 1.45]	0.89 [0.50, 1.59]
Undernourished vs normal	−3.49 [−5.86, −1.11]	1.10 [0.62, 1.96]
Infection
Not infected	Ref.	Ref.
Hookworm	−3.98 [−6.40, −1.55]	2.42 [1.34, 4.39]
S. mansoni	−4.66 [−7.56, −1.66]	2.67 [1.46, 4.88]
A. lumbricoides	−4.13 [−10.37, 2.11]	0.99 [0.25, 3.87]
T. trichiura	3.06 [−6.24, 12.36]	0.71 [0.08, 6.25]
Multiple	−9.19 [−12.65, −5.73]	7.31 [3.27, 16.35]
Any helminth	−5.80 [−8.23, −3.38]	3.83 [1.92, 7.62]
Egg intensity
Hookworm	−0.02 [−0.04, −0.003]	1.003 [1.001, 1.004]
S. mansoni	−0.01 [−0.03, 0.04]	1.00 [0.99, 1.005]
A. lumbricoides	−0.003 [−0.02, 0.03]	1.00 [0.99, 1.002]
T. trichiura	−0.01 [−0.03, 0.003]	1.00 [0.998, 1.00]

β^a (regression coefficient): based on multiple linear regression analysis adjusted for age, gender, nutritional status and multiple helminth infection
aOR^b(adjusted odds ratio): based on multiple logistic regression analysis adjusted for age, gender, nutritional status and multiple helminth infection

ISSN: 1471-2334