Assessment of COVID-19 vaccine safety in pregnancy using population-based data.
Matched case–control study nested in a retrospective cohort.
April 2021–March 2022, England.
All pregnant individuals aged between 18 and 50 years with valid health records.
Individuals identified from the national Maternity Services Data Set (MSDS) had their records linked to hospital admission, national COVID-19 vaccine and COVID-19 testing databases. Matching included participant's age and estimated week of conception. We compared outcomes across multiple COVID-19 vaccine exposures using conditional multivariable logistic regression, adjusting for demographic and health characteristics.
Adverse pregnancy, maternal and neonatal outcomes.
514 013 individuals were included. We found lower odds of giving birth to a baby who was low birthweight (aOR = 0.86, 95% CI: 0.79–0.93), preterm (aOR = 0.89, 95% CI: 0.85–0.92) or who had an Apgar score < 7 at 5 min of age (aOR = 0.89, 95% CI: 0.80–0.98) for individuals who received at least one dose of COVID-19 vaccine during pregnancy. The odds of admission to intensive care unit during pregnancy were lower in those vaccinated (aOR = 0.85, 95% CI: 0.76–0.95). There was no association between vaccination in pregnancy and stillbirth, neonatal death, perinatal death and maternal venous thromboembolism in pregnancy.
COVID-19 vaccines are safe to use in pregnancy. Our findings generated important information to communicate to pregnant individuals and health professionals to support COVID-19 maternal vaccination programmes.
Objective: Child marriage forces a girl into adult roles before physical and psychological maturity, which can take a toll on women's health over the life course. This article aims to assess whether child marriage and adolescent childbearing are associated with elevated risk of gynaecologic disorders leading to hysterectomy.
Design: Cross-sectional and time-to-event analysis.
Setting: India.
Population: 528 816 ever-married women, aged 20-49 years.
Methods: Women were grouped in four mutually exclusive categories: (i) married adult-not an adolescent mother (reference category), (ii) married adult-adolescent mother, (iii) married child-not an adolescent mother and (iv) married child-adolescent mother. Multivariable logistic regressions were fitted to assess the odds of hysterectomy for these groups. Nonparametric Kaplan-Meier survivor functions were estimated to evaluate survival rates across the groups.
Main outcome measures: Whether had a hysterectomy and age when hysterectomy was performed.
Results: Compared to women married as adults, not an adolescent mother, women married in childhood and gave birth in adolescence were 1.87 (95% CI: 1.78-1.96) times more likely to have a hysterectomy. The latter group also had the lowest survival probability for hysterectomy at all ages (e.g., 85.80% [95% CI: 85.41-86.18] at age 49 years as compared to 91.65% [95% CI: 91.37-91.89] for the former group). Women married as children but not adolescent mothers and married as an adult but gave birth in adolescence also had higher odds of hysterectomy-1.40 (95% CI: 1.31-1.50) and 1.53 (95% CI: 1.40-1.66) times of that of the reference group, respectively.
Conclusions: Our results, showing a strong relationship between child marriage and hysterectomy, contribute to the literature on later-life health consequences of child marriage.
To assess whether procedural-induced abortion or provider-initiated preterm delivery are associated with improved survival in pregnant people with cancer.
Retrospective population-based cohort study.
Provinces of Alberta and Ontario, Canada, 2003–2016.
Females aged 18–50 years diagnosed with cancer at <20 weeks' (for the assessment of procedural-induced abortion) or <37 weeks' gestation (for the assessment of provider-initiated delivery).
Cox proportional hazard models assessed all-cause mortality in relation to procedural-induced abortion and provider-initiated preterm delivery, adjusting for cancer site, stage at diagnosis and age. Meta-analysis pooled the results across both provinces.
All cause mortality.
There were 512 pregnant people diagnosed with cancer at <20 weeks' gestation and 782 diagnosed with cancer at <37 weeks' gestation. Neither procedural-induced abortion (adjusted hazard ratio [aHR] = 1.39, 95% CI: 0.32–6.17) nor provider-initiated preterm delivery (aHR = 1.17, 95% CI: 0.76–1.81) were associated with improved survival following adjustment for age, stage at diagnosis and cancer site.
Neither procedural-induced abortion nor provider-initiated preterm birth was associated with improved survival in pregnant people diagnosed with cancer; however, these obstetric interventions are highly personal decisions best decided by the pregnant person in consultation with their care providers.
To examine if peritoneal conditioning with an altered insufflation gas mixture is associated with reduced postoperative pain intensity compared to the standard insufflation gas (i.e., 100% CO2).
A prospective, single-centre, randomized, double-blind, superiority trial was performed.
This study was conducted between 4 April 2019 and 10 February 2022 at the Jessa Hospital, Hasselt, Belgium.
Patients scheduled for elective gynaecologic laparoscopic surgery.
Seventy-four patients scheduled for elective gynaecologic laparoscopic surgery were randomised to receive either the standard insufflation gas with 100 CO2 (n = 37; control group) or the altered gas mixture of 86% CO2, 10% N2O and 4% O2 (n = 37; experimental group).
Postoperative pain was assessed at 4, 8 and 24 hours after surgery and on postoperative day (POD) 7 by an 11-point Numeric Rating Scale, with 0 indicating no pain and 10 indicating worst imaginable pain.
No significant differences were found between the control and experimental groups regarding postoperative pain at 4, 8 and 24 h after surgery, as well as on POD7. In addition, the median (25% and 75%) total amount of IV piritramide consumption during the first 24 h after surgery was not significantly different between groups (control group: 18.0 [10.0, 27.0] mg vs. experimental group: 17.0 [10.0, 34.0] mg, p = 0.62).
The alternative insufflation gas mixture comprising 86% CO2, 10% N2O and 4% O2 used for the pneumoperitoneum during gynaecologic laparoscopic surgery does not appear to reduce postoperative pain compared to the standard insufflation gas of 100% CO2.
Objective: To identify factors associated with neonatal respiratory distress (NRD) in early Gestational diabetes mellitus (eGDM).
Design: Nested case-control analysis of the TOBOGM trial.
Setting: Seventeen hospitals: Australia, Sweden, Austria and India.
Population: Pregnant women, <20 weeks' gestation, singleton, GDM risk factors.
Methods: Women with GDM risk factors completed an oral glucose tolerance test (OGTT) before 20 weeks: those with eGDM (WHO-2013 criteria) were randomised to immediate or deferred GDM treatment. Logistic regression compared pregnancies with/without NRD, and in pregnancies with NRD, those with/without high-dependency nursery admission for ≤24 h with those admitted for >24 h. Comparisons were adjusted for age, pre-pregnancy body mass index, ethnicity, smoking, primigravity, education and site. Adjusted odds ratios (95% CI) are reported.
Main outcome measures: NRD definition: ≥4 h of respiratory support (supplemental oxygen or supported ventilation) postpartum. Respiratory distress syndrome (RDS): Supported ventilation and ≥24 h nursery stay.
Results: Ninety-nine (12.5%) of 793 infants had NRD; incidence halved (0.50, 0.31-0.79) if GDM treatment was started early. NRD was associated with Caesarean section (2.31, 1.42-3.76), large for gestational age (LGA) (1.83, 1.09-3.08) and shorter gestation (0.95, 0.93-0.97 per day longer). Among NRD infants, >24 h nursery-stay was associated with higher OGTT 1-h glucose (1.38, 1.08-1.76 per mmol/L). Fifteen (2.0%) infants had RDS.
Conclusions: Identifying and treating eGDM reduces NRD risk. NRD is more likely with Caesarean section, LGA and shorter gestation. Further studies are needed to understand the mechanisms behind this eGDM complication and any long-term effects.
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