Maternal adiposity prior to pregnancy is associated with ADHD symptoms in offspring: evidence from three prospective pregnancy cohorts

Rodriguez, Alina and Miettunen, J. and Henriksen, T. B. and Olsen, J. and Obel, C. and Taanila, A. and Ebeling, H. and Linnet, K. M. and Moilanen, I. and Järvelin, M.-R. (2008) Maternal adiposity prior to pregnancy is associated with ADHD symptoms in offspring: evidence from three prospective pregnancy cohorts. International Journal of Obesity, 32 (3). pp. 550-557. ISSN 0307-0565

Full content URL: http://dx.doi.org/10.1038/sj.ijo.0803741

Documents
__network.uni_staff_S2_jpartridge_0803741a.pdf

Request a copy
[img] PDF
__network.uni_staff_S2_jpartridge_0803741a.pdf - Whole Document
Restricted to Repository staff only

124kB
Item Type:Article
Item Status:Live Archive

Abstract

Objectives: We examine whether pregnancy weight (pre-pregnancy body mass index (BMI) and/or weight gain) is related to core symptoms of attention deficit hyperactivity disorder (ADHD) in school-age offspring.

Design: Follow-up of prospective pregnancy cohorts from Sweden, Denmark and Finland within the Nordic Network on ADHD.

Methods: Maternal pregnancy and delivery data were collected prospectively. Teachers rated inattention and hyperactivity symptoms in offspring. High scores were defined as at least one core symptom rated as ‘severe’ and two as ‘present’ (approximately 10% of children scored in this range). Logistic regression and latent class analyses were used to examine maternal pregnancy weight in relation to children's ADHD core symptoms.

Results: Teacher rated 12 556 school-aged children. Gestational weight gain outside of the Institute of Medicine guidelines was not related to ADHD symptoms (below recommendations: odds ratio (OR): 0.96; 95% confidence interval (CI): 0.81, 1.14; above recommendations: OR: 0.98; 95% CI: 0.82, 1.16). To examine various patterns of pre-pregnancy BMI and weight gain, we used latent class analysis and found significant associations between classes that included pre-pregnancy overweight or obesity and a high ADHD symptom score in offspring, ORs ranged between 1.37 (95% CI: 1.07, 1.75) and 1.89 (95% CI: 1.13, 3.15) adjusted for gestational age, birth weight, weight gain, pregnancy smoking, maternal age, maternal education, child gender, family structure and cohort country of origin. Children of women who were both overweight and gained a large amount of weight during gestation had a 2-fold risk of ADHD symptoms (OR: 2.10, 95% CI: 1.19, 3.72) compared to normal-weight women.

Conclusions: We show for the first time that pre-pregnancy BMI is associated with ADHD symptoms in children. Our results are of public health significance if the associations are causal and will then add ADHD symptoms in offspring to the list of deleterious outcomes related to overweight and obesity in the prenatal period.

Keywords:attention deficit/hyperactivity disorder symptoms, Children, Body Mass Index, Pregnancy, Foetal origins, Cohort Studies
Subjects:B Subjects allied to Medicine > B990 Subjects Allied to Medicine not elsewhere classified
C Biological Sciences > C841 Health Psychology
Divisions:College of Social Science > School of Psychology
ID Code:22945
Deposited On:08 Jun 2016 14:45

Repository Staff Only: item control page