Publications by authors named "John M D Thompson"

Aim: This study aimed to investigate the prevalence of family violence (FV) in sudden Unexpected Death in Infancy (SUDI) cases in New Zealand.

Methods: A case-control study was implemented from March 2012 to February 2015. Cases comprised all SUDI deaths referred to the coroner.

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Aims: The aim of this study was to determine if caries-free rates and the number of teeth affected by caries in children from inpatient, day stay, and specialist outpatient clinic groups differed significantly from the population and by ethnicity.

Methods: We extracted admissions for general medical admissions (inpatient) and day stay surgery for grommets (day stay) for 2019 from Starship Children's Hospital, Auckland, New Zealand, and children on the Auckland bronchiectasis register (specialist outpatient clinic). Oral health data was extracted from the Auckland Regional Dental Service database until the end of 2021.

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Background: The optimal methods and settings for induction of labour (IOL) in terms of effectiveness, safety, and women's experience are still not elucidated.

Objective: To compare the effectiveness and safety of outpatient versus inpatient cervical ripening settings for IOL.

Search Strategy: MEDLINE, Embase, Emcare, CINAHL Plus, Scopus, Cochrane Library, WHO ICTRP and clinicaltrials.

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Introduction: Outpatient cervical ripening and induction of labor might offer potential benefits. There are a few randomized controlled trials (RCTs) comparing outpatient balloon catheters with inpatient vaginal dinoprostone, but the reported outcomes among these trials were inconsistent, justifying the need for a meta-analysis. We aimed to evaluate the effectiveness and safety of inpatient vaginal dinoprostone compared to outpatient balloon catheters for cervical ripening in labor induction.

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Problem: Women who receive midwifery continuity-of-care require fewer interventions, generating significant cost savings for health services. Existing cost models were based on studies including low-risk pregnancies, limiting generalisability.

Background: New Zealand (NZ) is the only high-income country with a fully integrated midwifery continuity of care model facilitating study of real-world costs by model of care.

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Objectives: To determine the prevalence of eczema among children in New Zealand.

Methods: Population-based retrospective observational study utilising national pharmaceutical dispensing records for topical corticosteroids and emollients for all New Zealand children aged 0-14 years from 1st January 2006 to 31st December 2019. Data are reported using descriptive statistics, with comparisons between ethnicities and socioeconomic quintiles undertaken with rate ratios.

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In Māori and Pacific adults, the CREBRF rs373863828 minor (A) allele is associated with increased body mass index (BMI) but reduced incidence of type-2 and gestational diabetes mellitus. In this prospective cohort study of Māori and Pacific infants, nested within a nutritional intervention trial for pregnant women with obesity and without pregestational diabetes, we investigated whether the rs373863828 A allele is associated with differences in growth and body composition from birth to 12-18 months' corrected age. Infants with and without the variant allele were compared using generalised linear models adjusted for potential confounding by gestation length, sex, ethnicity and parity, and in a secondary analysis, additionally adjusted for gestational diabetes.

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Article Synopsis
  • The study aimed to explore the impact of the Fetal Pillow® on maternal and neonatal health during caesarean sections in two New Zealand maternity units.
  • Data from 1,703 caesarean births were analyzed, comparing instances before and after the Fetal Pillow®'s introduction and between two different units, one using the device and one not.
  • The results showed no significant differences in rates of uterine incision extensions or neonatal outcomes, indicating that further randomized controlled trials are needed to determine the Fetal Pillow®'s effectiveness.
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Introduction: Birth at early term (37-38 completed gestational weeks [GW] and additional days) is associated with adverse neonatal outcomes compared with waiting to ≥39 GW. Most studies report outcomes after elective cesarean section or a mix of all modes of births; it is unclear whether these adverse outcomes apply to early-term babies born after induction of labor (IOL). We aimed to determine, in women with a non-urgent induction indication (elective/planned >48 h in advance), if IOL at early and late term was associated with adverse neonatal and maternal outcomes compared with IOL at full term.

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Objective: We examined whether the risk of stillbirth was related to ambient air pollution in a UK population.

Design: Prospective case-control study.

Setting: Forty-one maternity units in the UK.

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Introduction: Maternal perception of fetal movements during pregnancy are reassuring; however, the perception of a reduction in movements are concerning to women and known to be associated with increased odds of late stillbirth. Prior to full term, little evidence exists to provide guidelines on how to proceed unless there is an immediate risk to the fetus. Increased strength of movement is the most commonly reported perception of women through to full term, but perception of movement is also hypothesized to be influenced by fetal size.

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Fetal growth restriction (FGR) and maternal supine going-to-sleep position are both risk factors for late stillbirth. This study aimed to use magnetic resonance imaging (MRI) to quantify the effect of maternal supine position on maternal-placental and fetoplacental blood flow, placental oxygen transfer and fetal oxygenation in FGR and healthy pregnancies. Twelve women with FGR and 27 women with healthy pregnancies at 34-38 weeks' gestation underwent MRI in both left lateral and supine positions.

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Background: Approximately 1 in 4 pregnant women undergo induction of labor. Meta-analyses have shown that mechanical methods of induction of labor are safe and effective, as is starting induction in an outpatient setting. However, few studies have evaluated outpatient balloon catheter induction in comparison with pharmacologic methods.

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Objective: Identify independent and novel risk factors for late-preterm (28-36 weeks) and term (≥37 weeks) stillbirth and explore development of a risk-prediction model.

Design: Secondary analysis of an Individual Participant Data (IPD) meta-analysis investigating modifiable stillbirth risk factors.

Setting: An IPD database from five case-control studies in New Zealand, Australia, the UK and an international online study.

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Background: Presentations for decreased fetal movements comprise a significant proportion of acute antenatal assessments. Decreased fetal movements are associated with increased likelihood of adverse pregnancy outcomes including stillbirth. Consensus-based guidelines recommend pregnant women routinely receive information about fetal movements, but practice is inconsistent, and the information shared is frequently not evidence-based.

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Modifiable infant sleep and care practices are recognised as the most important factors parents and health practitioners can influence to reduce the risk of sleep-related infant mortality. Understanding caregiver awareness of, and perceptions relating to, public health messages and identifying trends in contemporary infant care practices are essential to appropriately inform and refine future infant safe sleep advice. This scoping review sought to examine the extent and nature of empirical literature concerning infant caregiver engagement with, and implementation of, safe sleep risk-reduction advice relating to Sudden Unexpected Deaths in Infancy (SUDI).

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Article Synopsis
  • SUDI, or sudden unexpected death in infancy, has become less common due to the 'Back to Sleep' campaign, but still happens more often to families with less money and resources.
  • Researchers looked at data from over a million births in New Zealand to see how many mothers had mental health problems or substance abuse issues and if these were linked to SUDI.
  • They found that mothers who struggled with substance use were more likely to have babies who died from SUDI, and suggested that these moms need extra help to keep their babies safe when sleeping.
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  • The study looks at how sleeping on sofas, caregivers using drugs or alcohol, and other factors can affect the risk of sudden unexpected death in babies in New Zealand.
  • Researchers collected information from parents over three years and found that sleeping on sofas and caregiver drug use greatly increased the risk of dangerous situations for babies, especially for those under 3 months old.
  • The main conclusion is that stopping smoking during pregnancy and promoting safe sleeping environments can help reduce these risks, especially for Māori infants who are more affected.
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  • Impetigo, a contagious bacterial skin infection, is most prevalent in children from low-income communities, prompting concerns about increasing resistance due to the common use of fusidic acid in New Zealand.
  • A trial is being conducted to compare the effectiveness of fusidic acid, hydrogen peroxide, and simple wound care in treating impetigo, involving children from urban school health clinics in a 5-day regimen.
  • The trial emphasizes the involvement of affected communities in its design to ensure that the most vulnerable children receive effective and safe treatments.
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Dietary pattern analysis is typically based on dimension reduction and summarises the diet with a small number of scores. We assess 'joint and individual variance explained' (JIVE) as a method for extracting dietary patterns from longitudinal data that highlights elements of the diet that are associated over time. The Auckland Birthweight Collaborative Study, in which participants completed an FFQ at ages 3·5 ( 549), 7 ( 591) and 11 ( 617), is used as an example.

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Article Synopsis
  • Late stillbirth happens in about 3 to 4 out of every 1,000 pregnancies, and it's especially more common in places with fewer resources.
  • Women often notice less movement from their babies before stillbirth, but it's hard to know what this means and how to respond, especially in later stages of pregnancy.
  • The study found that strong movements from the baby are linked to a lower risk of stillbirth, while a decrease in movements over the last two weeks raises that risk significantly.
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Objective: To assess speech outcomes at five and ten years of age in a nationwide study of children with orofacial cleft.

Design: Prospective study.

Participants: Children born with orofacial cleft and having primary surgery in New Zealand.

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Objective: To explore pēpē [infant] sleep practices and the key motivators among selected Māori and non-Māori māmā [mothers] in Auckland, New Zealand, in relation to the risk of sudden unexpected death in infancy (SUDI).

Methods: Qualitative research underpinned by a kaupapa Māori cultural framework was undertaken. In-depth face-to-face interviews occurred in the homes of māmā with young pēpē born in Counties Manukau, Auckland.

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Aim: To understand which safe sleep recommendations parents find most challenging to implement, identifying common barriers encountered; and investigate whether challenges are associated with practices employed.

Methods: A cross-sectional survey of 3341 Australian families with young infants who birthed a live baby during April-May 2017. Caregivers were asked about infant care practices and family characteristics.

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