Simone E. Buitendijk

Perinatal mortality and morbidity in a nationwide cohort of 529 688 low-risk planned home and hospital births

Objectiveu2002 To compare perinatal mortality and severe perinatal morbidity between planned home and planned hospital births, among low‐risk women who started their labour in primary care.

Pregnancy and labour in the dutch maternity care system: What is normal? The role division between midwives and obstetricians

INTRODUCTIONnIn the Dutch maternity care system, the role division between independently practising midwives (who take care of normal pregnancy and childbirth) and obstetricians (who care for pathologic pregnancy and childbirth) has been established in the so-called List of Obstetric Indications(LOI). The LOI designates the most appropriate care provider for women with defined medical or obstetric conditions.nnnMETHODSnThis descriptive study analysed the evolution of the concept of normality by comparing the development and the contents of the consecutive versions of the LOI from 1958 onwards. The results were related to data from available Dutch national databases concerning maternity care.nnnRESULTSnThe number of conditions defined in the successive lists increased from 39 in 1958 to 143 in 2003. In the course of time, the nature and the content of many indications changed, as did the assignment to the most appropriate care provider. The basic assumptions of the Dutch maternity care system remained stable: the conviction that pregnancy and childbirth fundamentally are physiologic processes, the strong position of the independently practising midwife, and the choice between home or hospital birth for low-risk women. Nevertheless, the odds of the obstetrician being involved in the birth process increased from 24.7% in 1964 to 59.4% in 2002, whereas the role of the primary care provider decreased correspondingly.nnnDISCUSSIONnMultidisciplinary research is urgently needed to better determine the risk status and the optimal type of care and care provider for each individual woman in her specific situation, taking into account the risk of both under- and over-treatment. Safely keeping women in primary care could be considered one of a midwifes interventions, just as a referral to secondary care may be. The art of midwifery and risk selection is to balance both interventions, in order to end up with the optimal result for mother and child.

Perinatal mortality and morbidity up to 28 days after birth among 743 070 low-risk planned home and hospital births: a cohort study based on three merged national perinatal databases

To compare rates of adverse perinatal outcomes between planned home births versus planned hospital births.

Clustering of Socioeconomic, Behavioural, and Neonatal Risk Factors for Infant Health in Pregnant Smokers

Background Tobacco smoking is a major cause of morbidity and mortality, including during pregnancy. Although effective ways of promoting smoking cessation during pregnancy exist, the impact of these interventions has not been studied at a national level. We estimated the prevalence of smoking throughout pregnancy in the Netherlands and quantified associations of maternal smoking throughout pregnancy with socioeconomic, behavioural, and neonatal risk factors for infant health and development. Methodology/Principal Findings Data of five national surveys, containing records of 14,553 Dutch mothers and their offspring were analyzed. From 2001 to 2007, the overall rate of smoking throughout pregnancy fell by 42% (from 13.2% to 7.6%) mainly as a result of a decrease among highly educated women. In the lowest-educated group, the overall rate of smoking throughout pregnancy was six times as high as in the highest-educated group (18.7% versus 3.2%). Prenatal tobacco smoke exposure was associated with increased risk of extremely preterm (≤28 completed weeks) (OR 7.25; 95% CI 3.40 to 15.38) and small-for-gestational age (SGA) infants (OR 3.08; 95% CI 2.66 to 3.57). Smoking-attributable risk percents in the population (based on adjusted risk ratios) were estimated at 29% for extremely preterm births and at 17% for SGA outcomes. Infants of smokers were more likely to experience significant alcohol exposure in utero (OR 2.08; 95%CI 1.25 to 3.45) and formula feeding in early life (OR 1.91; 95% CI 1.69 to 2.16). Conclusions The rates of maternal smoking throughout pregnancy decreased significantly in the Netherlands from 2001 to 2007. If pregnant women were to cease tobacco use completely, an estimated 29% of extremely preterm births and 17% of SGA infants may be avoided annually.

Healthy Growth in Children with Down Syndrome

Objective To provide cross-sectional height and head circumference (HC) references for healthy Dutch children with Down syndrome (DS), while considering the influence of concomitant disorders on their growth, and to compare growth between children with DS and children from the general population. Study design Longitudinal growth and medical data were retrospectively collected from medical records in 25 of the 30 regional hospital-based outpatient clinics for children with DS in the Netherlands. Children with Trisomy 21 karyotype of Dutch descent born after 1982 were included. The LMS method was applied to fit growth references. Results We enrolled 1,596 children, and collected 10,558 measurements for height and 1,778 for HC. Children with DS without concomitant disorders (otherwise healthy children) and those suffering only from mild congenital heart defects showed similar growth patterns. The established growth charts, based on all measurements of these two groups, demonstrate the three age periods when height differences between children with and without DS increase: during pregnancy, during the first three years of life, and during puberty. This growth pattern results in a mean final height of 163.4 cm in boys and 151.8 cm in girls (−2.9 standard deviation (SD) and −3.0 SD on general Dutch charts, respectively). Mean HC (0 to 15 months) was 2 SD less than in the general Dutch population. The charts are available at www.tno.nl/growth. Conclusions Height and HC references showed that growth retardation in otherwise healthy children with DS meanly occurs in three critical periods of growth, resulting in shorter final stature and smaller HC than the general Dutch population shows. With these references, health care professionals can optimize their preventive care: monitoring growth of individual children with DS optimal, so that growth retarding comorbidities can be identified early, and focusing on the critical age periods to establish ways to optimize growth.

Unchanged prevalence of Down syndrome in the Netherlands: results from an 11-year nationwide birth cohort

This study aims to evaluate trends in prevalence of Down syndrome (DS) births in the Netherlands over an 11‐year period and how they have been affected by maternal age and introduction of prenatal screening.

What does it take to have a strong and independent profession of midwifery? Lessons from the Netherlands

In the 1970s, advocates of demedicalising pregnancy and birth discovered Dutch maternity care. The Netherlands presented an attractive model because its maternity care system was characterised by a strong and independent profession of midwifery, close co-operation between obstetricians and midwives, a very high rate of births at home, little use of caesarean section, and morbidity and mortality statistics that were among the best in the developed world. Over the course of the following 40 years much has changed in the Netherlands. Although the home birth rate remains quite high when compared to other modern countries, it is half of what it was in the 1970s. Midwifery is still an independent medical profession, but a move toward integrated care threatens to bring midwives into hospitals under the direction of medical specialists, more women are interested in medical pain relief, and there is a growing concern that current, albeit slight, increases in rates of intervention in physiological births foreshadow the end of the unique approach to birth in the Netherlands. The story of Dutch maternity care thus offers an ideal opportunity to examine the social, organisational, and cultural factors that work to support, and to diminish, the independent practice of midwifery in high-resource countries. We may wish to believe that providing ample and convincing evidence of the value of midwifery care will be enough to promote more and better use of midwifery, but the lessons from the Netherlands make clear that an array of social forces play a critical role determining the place of midwives in the health care system and how the care they provide is deployed.

Gender-sensitive reporting in medical research.

Sex and gender differences influence the health and wellbeing of men and women. Although studies have drawn attention to observed differences between women and men across diseases, remarkably little research has been pursued to systematically investigate these underlying sex differences. Women continue to be underrepresented in clinical trials, and even in studies in which both men and women participate, systematic analysis of data to identify potential sex-based differences is lacking. Standards for reporting of clinical trials have been established to ensure provision of complete, transparent and critical information. An important step in addressing the gender imbalance would be inclusion of a gender perspective in the next Consolidated Standards of Reporting Trials (CONSORT) guideline revision. Uniform Requirements for Manuscripts Submitted to Biomedical Journals, as a set of well-recognized and widely used guidelines for authors and biomedical journals, should similarly emphasize the ethical obligation of authors to present data analyzed by gender as a matter of routine. Journal editors are also promoters of ethical research and adequate standards of reporting, and requirements for inclusion of gender analyses should be integrated into editorial policies as a matter of urgency.

Risk of perineal damage is not a reason to discourage a sitting birthing position: a secondary analysis

Aim:u2002 To examine the association between semi‐sitting and sitting position at the time of birth and perineal damage amongst low‐risk women in primary care.

Practical and social skills of 16-19-year-olds with Down syndrome: Independence still far away

Survival of children with Down syndrome (DS) has improved considerably, but insight into their level of daily functioning upon entering adulthood is lacking. We collected cross-sectional data from a Dutch nationwide cohort of 322 DS adolescents aged 16-19 (response 62.8%) to assess the degree to which they master various practical and social skills, using the Dutch Social competence rating scale and the Childrens Social Behavior Questionnaire. Up to 60% mastered some of the skills required for independent functioning, such as maintaining adequate standards of personal hygiene and preparing breakfast. Less than 10% had achieved basic skills such as basic cooking and paying in a shop. It is difficult for DS people to master all the skills necessary to live independently. Ninety percent of adolescents with DS experience significant problems in social functioning.