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Table 4 Multivariate generalized linear model of haematological parameters at age 6.5 years in association with Helicobacter pylori infection from 3 to 6.5 years of age, Butajira birth cohort study, Ethiopia

From: Effect of early and current Helicobacter pylori infection on the risk of anaemia in 6.5-year-old Ethiopian children

  Hb RBC MCV MCH MCHC
Variables βa 95 % CI P βa 95 % CI P βa 95 % CI P βa 95 % CI P βa 95 % CI P
Exposure to H. pylori at age 3                
Yes 0.07 0.27 to −0.15 0.49 0.02 −0.04 to 0.08 0.45 −0.47 −1.36 to 0.43 0.30 −0.04 −0.45 to 0.37 0.85 −0.13 −0.40 to 0.14 0.33
No 0b    0b    0b    0b    0b   
Exposure to H. pylori at age 5                
Yes −0.20 −0.37 to −0.04 0.01 −0.02 −0.07 to −0.03 0.44 −0.25 −0.97 to 0.46 0.48 −0.26 −0.59 to 0.07 0.12 −0.12 −0.33 to 0.10 0.29
No 0b    0b    0b    0b    0b   
Exposure to H. pylori at age 6.5                
Yes −0.08 −0.34 to 0.17 0.52 −0.03 −0.12 to 0.56 0.49 −0.04 −1.22 to 1.14 0.94 0.23 −0.32 to 0.78 0.41 −0.06 −0.42 to 0.29 0.73
No 0b    0b    0b    0b    0b   
Exposure to H. pylori up to age 6.5                
Infected at any age up to age 6.5 −0.19 −0.35 to −0.03 0.01 −0.06 −0.15 to 0.02 0.11 −2.22 −3.43 to −1.01 0.01 −0.63 −1.15 to - 0.12 0.01 −0.67 −1.21 to −0.14 0.01
Never infected 0b    0b    0b    0b    0b   
  1. aChanges for haematological parameters at age 6.5 years by Helicobacter pylori infection status from 3 to 6.5 years of age, adjusted for child’s gender, area of residence, maternal education, history of vaccination at 2 months, source of water, child’s height and weight at 6.5 years
  2. bReference group