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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

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

Explanatory variables Mean haemoglobin level
βa (95 % CI)
Prevalence of anaemia
aORb (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]
  1. βa (regression coefficient): based on multiple linear regression analysis adjusted for age, gender, nutritional status and multiple helminth infection
  2. aORb(adjusted odds ratio): based on multiple logistic regression analysis adjusted for age, gender, nutritional status and multiple helminth infection