1 Department of Clinical Medicine - The Department of Hepatology and Gastroenterology V, Department of Clinical Medicine, Health, Aarhus University2 Department of Clinical Medicine - Klinisk Epidemiologisk Afdeling, Aalborg, Department of Clinical Medicine, Health, Aarhus University3 Department of Clinical Medicine - Department of Clinical Epidemiology, Department of Clinical Medicine, Health, Aarhus University4 Department of Clinical Medicine, Health, Aarhus University5 unknown6 Department of Clinical Medicine - The Department of Hepatology and Gastroenterology V, Department of Clinical Medicine, Health, Aarhus University7 Department of Clinical Medicine, Health, Aarhus University
Objective. Little is known about predictors for adverse pregnancy outcomes among women with Crohn’s disease (CD). In this population-based study, we examined pregnancy outcomes in CD stratified by medical treatment and smoking status while accounting for disease activity. Methods. In two Danish regions with a population of 1.6 million, we identified 154 CD women who had given birth within a 6-year period. We combined questionnaire data, prescription data, data from medical records and population-based medical databases. We used logistic regression to estimate prevalence odds ratios (POR) for adverse pregnancy outcomes by different predictors. Results. Among 105 (80%) respondents, 55 (52%) reported taking medication during pregnancy. The majority (95%) were in disease remission. The children’s mean birth weight did not differ by maternal medical treatment. As expected, smoking was a predictor of low birth weight. Mean birth weight in children of smokers in medical treatment was significantly reduced by 274 g compared with children of non-smokers who received medical treatment.In children of women without medical treatment, this difference was 126 g between smokers and non-smokers. Women in medical treatment did not have an increased risk of preterm delivery (POR 0.71; 95% confidence interval (CI) 0.18–2.79), congenital malformations (POR 0.60; 0.10–3.76) or cesarean section (POR 1.40; 0.63–3.08). Conclusion. In CD, smoking was negatively associated with child birth weight. This association was most pronounced among women who received medical treatment. Maternal medical treatment for CD did not seem to be a risk factor for adverse pregnancy outcomes.
Scandinavian Journal of Gastroenterology, 2014, Vol 49, p. 302-308