PT - JOURNAL ARTICLE AU - Evelien R van Meel AU - Gautam Saharan AU - Vincent WV Jaddoe AU - Johan C de Jongste AU - Irwin KM Reiss AU - Henning Tiemeier AU - Hanan El Marroun AU - Liesbeth Duijts TI - Parental psychological distress during pregnancy and the risk of childhood lower lung function and asthma: a population-based prospective cohort study AID - 10.1136/thoraxjnl-2019-214099 DP - 2020 Sep 25 TA - Thorax PG - thoraxjnl-2019-214099 4099 - http://thorax.bmj.com/content/early/2020/09/25/thoraxjnl-2019-214099.short 4100 - http://thorax.bmj.com/content/early/2020/09/25/thoraxjnl-2019-214099.full AB - Background Although maternal psychological distress during pregnancy is associated with increased risks of respiratory morbidity in preschool children, it is unknown whether this association persists into later childhood.Objective To examine the association between parental psychological distress during pregnancy and lung function and asthma in children of school age.Methods This study of 4231 children was embedded in a population-based prospective cohort. Parental psychological distress was assessed by the Brief Symptom Inventory during and 3 years after pregnancy, and in mothers also at 2 and 6 months after pregnancy. At age 10 years, lung function was obtained by spirometry and asthma by questionnaire.Results The prevalence of asthma was 5.9%. Maternal overall psychological distress during pregnancy was associated with a lower forced vital capacity (FVC) (z-score difference −0.10 (95% CI −0.20 to –0.01) per 1-unit increase), maternal depressive symptoms during pregnancy with a lower forced expiratory volume in the first second (FEV1) and FVC (−0.13 (95% CI −0.24 to –0.01) and −0.13 (95% CI −0.24 to –0.02) when using clinical cut-offs) in their children. All maternal psychological distress measures during pregnancy were associated with an increased risk of asthma (range OR: 1.46 (95% CI 1.12 to 1.90) to 1.91 (95% CI 1.26 to 2.91)). Additional adjustment for paternal psychological distress during pregnancy and parental psychological distress after pregnancy did not materially change the associations. Paternal psychological distress during pregnancy was not associated with childhood respiratory morbidity.Conclusion Maternal, but not paternal, psychological distress during pregnancy is associated with an increased risk of asthma and partly lower lung function in children. This suggests intrauterine programming for the risk of later-life respiratory disease.