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Association between maternal anxiety symptoms and allergy* in children
OR (95% CI) for allergy at 7½ y
N allergy/no allergy (% with allergy)CrudeAdjusted
Maternal anxiety symptoms at 18 wk
 1st quartile (0-2)384/1387 (21.7)1 (reference)1 (reference)
 2nd quartile (3-4)255/1058 (19.4)0.87 (0.73-1.04)0.86 (0.72-1.03)
 3rd quartile (5-7)310/1121 (21.7)1.00 (0.84-1.18)1.00 (0.84-1.19)
 4th quartile (8-16)215/865 (19.9)0.90 (0.74-1.08)0.95 (0.78-1.15)
 P (trend).50.87
Maternal anxiety symptoms at 32 wk
 1st quartile (0-2)372/1277 (22.6)1 (reference)1 (reference)
 2nd quartile (3-4)282/1138 (19.9)0.85 (0.71-1.01)0.88 (0.74-1.05)
 3rd quartile (5-7)292/1237 (19.1)0.81 (0.68-0.96)0.83 (0.70-0.99)
 4th quartile (8-16)260/911 (21.6)0.98 (0.82- 1.17)1.06 (0.88-1.27)
 P (trend).47.99
*Allergy defined as positive skin prick test result to 1 of cat/grass/house dust mite.
Adjusted for sex, preterm delivery, multiple birth, number of siblings, maternal age, maternal education, maternal history of asthma and allergy, prenatal tobacco smoke exposure, and problems during pregnancy (diabetes, hypertension, steroid intake).