Table 3. Adjusted analyses for associations between geohelminth parasite
species and parasite burdens in mothers and in children up to and at 5
years of age, and wheeze and allergen skin test (SPT) reactivity to any
allergen at 8 years and asthma between 5 and 8 years
SPT – allergen skin prick test reactivity to any of 9 allergens. Odds
ratios (OR) and 95% confidence intervals (95% CI) were estimated using
logistic regression and adjusted for maternal allergy and ethnicity,
area of residence, sex, birth order, contact with large farm animals,
geohelminths in the child to 5 years (for maternal geohelminths),
maternal geohelminths (for childhood geohelminths), and presence of
other species of geohelminth parasite. Infection intensity categories
are: A. lumbricoides , light (<5,000 epg),
moderate/heavy (>5,000 epg); T. trichuira , light
(<1000 epg), moderate/heavy (>1,000 epg).
P<0.05 are shown in bold. Denominators for geohelminth
prevalence versus intensity results differ because it was not possible
to do Kato-Katz examinations on all samples where sample volume was
insufficient. P<0.05 are shown in bold.