Background

Women of advanced age (40 years or older) are generally, at risk for pregnancy and delivery related problems. In addition, there is limited knowledge on being of advanced age and having been given Assisted Reproductive Treatment (ART) and its association with negative obstetric outcomes. Therefore, data from the Swedish Medical Birth Register was used to investigate pregnancy and neonatal outcomes for women aged 40 or more who had given birth. The secondary aim was to compare the obstetric outcomes of women who had used ART and women who had not undergoneART while adjusting for marital status across the age groups.

Method

Women of advanced age who had given birth in Sweden during 2007–2012 formed the index group, n = 37,558; a reference group of women comprised 71,472 women under the age of 40. An additional subgroup of women aged 45 or older when giving birth was also formed, n = 2229. The obstetric and neonatal data for all the women was derived from national register data.

Results

Women of advanced age were more often single, had undergone ART, and more often experienced adverse obstetric outcomes than did younger women. The neonate’s health was also more often adversely affected expressed as being born with low birth weight and Small for Gestational Age (SGA), having lower Apgar scores, and having more health problems during the first week compared to the reference group.

Conclusions

Women who are approaching the upper limit of fecundity are at greater risk for having children who are preterm and SGA. The adverse effects of being preterm and SGA may have negative long-term effects, not only on the children but also on the mothers. This needs to be addressed more frequently in a clinical setting when advising women of all ages on pregnancy and ART treatment.

Women postpone childbirth to an age when morbidity is higher and fertility has decreased and yet the knowledge of mothers morbidity related to age remains scarce. Swedish national register data from the Medical Birth Register and National Patient Register was used to investigate the incidence of diseases listed in the International Classification of Diseases, version 10 (ICD-10) in women who gave birth 2007-8. The index group consisted of women 40 years of age or older (n=8 203) were compared to a control group of women, younger than 40 years (n=15 569) at childbirth. The period studied was five years before childbirth to five years after. The main outcome measures were incidence of disease diagnosed in specialized hospital care. Demographical data and use of assisted reproduction (ART) were adjusted for. The results showed that older women were more likely to be single; less frequently used tobacco; were educated on a higher level; had a higher BMI and more often had used ART to become pregnant. The older women showed a higher morbidity rate. In the diagnostic groups: Neoplasms, Blood and immune system, Eye and adnexa, Ear and mastoid, Circulatory, Digestive, Skin and subcutaneous tissue, Musculoskeletal and connective tissue, and Genitourinary. The results add to the body of knowledge of a number of specific risks faced by older mothers and may be used to identify preventive actions concerning fertility and morbidity both before and after childbirth.

Background Advanced maternal age, single status and use of assisted reproductive technology (ART) are increasing in mothers in high-income countries, and all are known risk factors for negative obstetric outcomes. Less is known about their long-term consequences for childhood morbidity. Thus, the aim of this study was to investigate morbidity up to five years of age, in the children of older, single, and/or ART-treated mothers. Methods A cross-sectional using Swedish registers was performed comprising 23 772 children. The prevalence of diagnosis and the number of hospital visits for specialist care, were compared and analyzed in relation to maternal age at childbirth, maternal civil status, and mode of conception. The odds ratio for specialized care within each ICD-chapter were estimated using single and multiple logistic regression. Results Children born to single mothers and children conceived using ART had significantly more outpatient visits for specialist care and significantly more diagnoses compared to children with married/cohabiting mothers, and spontaneously conceived children. Children born to mothers of advanced maternal age (>= 40) had fewer in- and outpatient visits. However, they were significantly more often diagnosed within ICD-chapters XVI, XVII i.e., they experienced more morbidity in the neonatal period. Conclusion The results indicate that children born to single mothers and children of ART-treated mothers have a higher morbidity and consume more specialist care than children of married/cohabiting and spontaneously pregnant mothers. We conclude that the use of ART, maternal single status and advanced maternal age are risk factors of importance to consider in pediatric care and when counseling women who are considering ART treatment.