A population-based study of the effect of infertility and its treatment on child health and development
Summary
The aim of this study was to elucidate the separate effects of infertility and its treatment on a range of child health and development outcomes measured at age 3 and 5 years in a national cohort study (the Millennium Cohort Study which recruited over 18,000 children). The population was divided into several groups of children: those who resulted from an unplanned pregnancy; those who resulted from a mistimed pregnancy; those who resulted from a 'planned pregnancy with a usual time to conception', those who resulted from a 'prolonged time to conception' and those who were conceived following infertility treatment.
Key findings:
- Children who were conceived following infertility treatment tended to come from socially advantaged backgrounds whereas children conceived following an unplanned pregnancy were more likely to come from disadvantaged backgrounds.
- For most of the outcomes we examined, there were no excess risks among children conceived following infertility treatment, except a slightly higher increase in behavioural problems and some suggestion of an increased risk of asthma.
- Children conceived following an unplanned pregnancy tended to have poorer health and developmental outcomes although most of these effects tended to disappear after adjustment for other factors.
Publications
Journal Articles
- Carson C, Kurinczuk JJ, Sacker A, Kelly Y, Klemetti R, Redshaw M, Quigley MA. Cognitive development following ART: effect of choice of comparison group, confounding and mediating factors. Hum Reprod. 2010;25(1):244?52.
- Carson C, Kelly Y, Kurinczuk JJ, Sacker A, Redshaw M, Quigley MA. Effect of pregnancy planning and fertility treatment on cognitive outcomes in children at ages 3 and 5: longitudinal cohort study. Br Med J. 2011;343.
- Carson C, Sacker A, Kelly Y, Redshaw M, Kurinczuk JJ, Quigley MA. Asthma in children born after infertility treatment: findings from the UK Millennium Cohort Study. Hum Reprod. 2013;28(2):471-9.
- Carson C, Redshaw M, Sacker A, Kelly Y, Kurinczuk JJ, Quigley MA. Effects of pregnancy planning, fertility, and assisted reproductive treatment on child behavioural problems at 5 and 7 years: evidence from the Millennium Cohort Study. Fertil Steril. 2013;99(2):456-63.