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Introduction: Obstetrics research has predominantly focused on the management and identification of factors associated with labor dystocia. Despite these efforts, clinicians currently lack the necessary tools to effectively predict a woman's risk of experiencing labor dystocia. Therefore, the objective of this study was to create a predictive model for labor dystocia. Material and methods: The study population included nulliparous women with a single baby in the cephalic presentation in spontaneous labor at term. With a cohort-based registry design utilizing data from the Copenhagen Pregnancy Cohort and the Danish Medical Birth Registry, we included women who had given birth from 2014 to 2020 at Copenhagen University Hospital–Rigshospitalet, Denmark. Logistic regression analysis, augmented by a super learner algorithm, was employed to construct the prediction model with candidate predictors pre-selected based on clinical reasoning and existing evidence. These predictors included maternal age, pre-pregnancy body mass index, height, gestational age, physical activity, self-reported medical condition, WHO-5 score, and fertility treatment. Model performance was evaluated using the area under the receiver operating characteristics curve (AUC) for discriminative capacity and Brier score for model calibration. Results: A total of 12,445 women involving 5,525 events of labor dystocia (44%) were included. All candidate predictors were retained in the final model, which demonstrated discriminative ability with an AUC of 62.3% (95% CI:60.7–64.0) and Brier score of 0.24. Conclusions: Our model represents an initial advancement in the prediction of labor dystocia utilizing readily available information obtainable upon admission in active labor. As a next step further model development and external testing across other populations is warranted. With time a well-performing model may be a step towards facilitating risk stratification and the development of a user-friendly online tool for clinicians. [ABSTRACT FROM AUTHOR]

Introduction: A pandemic may negatively influence psychological well‐being in the individual. We aimed to assess the potential influence of the first national lockdown in Denmark (March to June 2020) due to the COVID‐19 pandemic on psychological well‐being and the content and degree of worries among pregnant women in early pregnancy. Material and methods: In this hospital‐based cross‐sectional study based on self‐reported data we compared psychological well‐being and worries among women who were pregnant during the first phase of the pandemic (COVID‐19 group) (n = 685), with women who were pregnant the year before (Historical group) (n = 787). Psychological well‐being was measured by the five‐item World Health Organization Well‐being Index (WHO‐5), using a score ≤50 as indicator of reduced psychological well‐being. Differences in WHO‐5 mean scores and in the prevalence of women with score ≤50 were assessed using general linear and log‐binomial regression analyses. The Cambridge Worry Scale was used to measure the content and degree of major worries. To detect differences between groups, Pearson's Chi‐square test was used. Results: We found no differences in mean WHO‐5 score between groups (mean difference) 0.1 (95% CI −1.5 to 1.6) or in the prevalence of women with WHO‐5 score ≤50 (prevalence ratio 1.04, 95% CI 0.83–1.29) in adjusted analyses. A larger proportion of women in the COVID‐19 group reported major worries about Relationship with husband/partner compared with the Historical group (3% [n = 19] vs 1% [n = 6], p = 0.04), and 9.2% in the COVID‐19 group worried about the possible negative influence of the COVID‐19 restrictions. Conclusions: Our findings indicate that national restrictions due to the COVID‐19 pandemic did not influence the psychological well‐being or the content and degree of major worries among pregnant women. However, a larger proportion of women in the COVID‐19 group reported major worries concerning Relationship with husband/partner compared with the Historical group and 9.2% in the COVID‐19 group worried about the possible negative influence of the COVID‐19 restrictions. [ABSTRACT FROM AUTHOR]

Background: Little is known about maternal alcohol intake in early pregnancy and the risk of attention‐deficit/hyperactivity disorder (ADHD) in children beyond 5 years of age. We examined the association between alcohol binge drinking and weekly alcohol intake in early pregnancy and the risk of ADHD in children followed from birth to 19 years of age. Methods: We included 48,072 children born between 1998 and 2012, whose mothers participated in the Aarhus Birth Cohort. Maternal alcohol intake was obtained from a self‐administered questionnaire completed in early pregnancy. ADHD diagnoses were retrieved from the Danish Psychiatric Central Research Register and the Danish National Patient Register. Crude hazard ratio and adjusted hazard ratio (aHR) of ADHD according to alcohol binge drinking or weekly intake of alcohol were calculated using the Cox regression. Results: Compared to children of women with no binge drinking episodes, we observed an aHR for ADHD of 0.91 (95% CI 0.76 to 1.08), 0.73 (95% CI 0.56 to 0.96), and 0.77 (95% CI 0.57 to 1.06) among children of women reporting 1, 2, and 3 or more binge drinking episodes, respectively. Among children of women drinking <1 drink per week, 1 drink per week, 2 drinks per week, and 3 or more drinks per week, we observed an aHR for ADHD of 0.87 (95% CI 0.74 to 1.03), 0.63 (95% CI 0.40 to 0.98), 1.30 (95% CI 0.89 to 1.92), and 0.78 (95% CI 0.38 to 1.59), respectively, when compared to children of women not drinking on a weekly basis. Conclusion: We found no evidence that binge drinking or low alcohol intake in early pregnancy was associated with the risk of ADHD in children. [ABSTRACT FROM AUTHOR]

Background: Postponing parenthood has steadily increased during the past decades in Western countries. This trend has affected the size of families in the direction of fewer children born per couple. In addition, higher maternal age is associated with an increased risk of pregnancy-related complications such as prematurity and foetal death, while higher paternal age increases the risk of miscarriage and affects time-to-pregnancy. Hence, understanding the circumstances and reflections that influence the decision is greatly needed and little is known about potential gender difference influencing the choice. The aim was to investigate attitudes towards parenthood, intentions for childbirth and knowledge about fertility issues among men and women. Methods: We conducted a cross-sectional study based on a validated 49-item questionnaire among students, who attended selected mandatory lectures at a Danish university college in February to April 2016. The participation rate was 99%, and 517 completed the questionnaire. Results: Though the majority of all participants wished to have children in the future (>86%), there was significant difference between the genders (p = 0.002). Women rated having children to be more important than men did (p < 0.001), while men rated higher the likelihood of abstaining from having children if faced with infertility (p = 0.003). Knowledge about fertility issues was similar between genders including poor knowledge about the age-related decline in female fertility. While women found it more important to have children before being 'too old' (p = 0.04), still more than 40% of all respondents intended to have their last child after the age of 35 years. For both genders the most important prerequisite for parenthood was having a partner to share responsibility with. Perceived or experienced life changes related to parenthood were generally positive such as personal development. Conclusion: The majority of respondents wished to have children, but many desired to have these after the biological decline in female fertility. The moderate knowledge level among both genders uncovered in this study is of concern. Future research should address the potential link between fertility knowledge and planning of parenthood. We may benefit from intervention studies examining the effect of routine preconception care. [ABSTRACT FROM AUTHOR]

Purpose: Population-based studies evaluating the use and extent of antenatal obstetric hospitalizations (AOH) are sparse. The objective of the present study was to describe the prevalence, time trend, and risk factors for AOH in Denmark. Materials and methods: A retrospective national register-based cohort study was conducted that included all pregnancies with delivery after 22 gestational weeks in Denmark from 2003 to 2012. The outcomes were AOH and the diagnoses leading to these hospitalizations. AOH was defined as an antenatal hospitalization for at least 1 day with at least one obstetric International Classification of Diseases-10 diagnosis and admission date more than 3 days before delivery. The study included 617,906 pregnancies; 48,366 (7.8%) pregnancies were associated Results: with 64,072 AOH before delivery. The percentage of pregnancies with AOH decreased from 8.6% to 7.1%. The median length of stay decreased from 3 to 2 days, and admission for at least 7 days was almost halved. Threatened preterm delivery was the most frequent diagnostic category for AOH. A decline was seen in all diagnostic categories except maternal diseases. Significant risk factors for AOH were multiple pregnancies, low or high maternal age and body mass index, nulliparity, lower educational levels, unemployment or being outside the workforce, single partner status, and smoking. The relative risk of very preterm delivery before gestational age of 34 weeks was higher in pregnancies with AOH compared with pregnancies without AOH (relative risk 15.2; 95% confidence interval: 14.6-15.8). Conclusion: This study shows a shift toward less use and shorter duration of antenatal hospitalization in Denmark. The most common indication used in pregnancies with AOH was threatened preterm delivery, and more than one-third resulted in very preterm deliveries. [ABSTRACT FROM AUTHOR]