Stillbirth risk by fetal size among 126.5 million births in 15 countries from 2000 to 2020:A fetuses-at-risk approach

OBJECTIVE: To compare stillbirth rates and risks for small for gestational age (SGA), large for gestational age (LGA) and appropriate for gestational age (AGA) pregnancies at 24-44 completed weeks of gestation using a birth-based and fetuses-at-risk approachs.DESIGN: Population-based, multi-country study.SETTING: National data systems in 15 high- and middle-income countries.POPULATION: Live births and stillbirths.METHODS: A total of 151 country-years of data, including 126 543 070 births across 15 countries from 2000 to 2020, were compiled. Births were categorised into SGA, AGA and LGA using INTERGROWTH-21st standards. Gestation-specific stillbirth rates, with total births as the denominator, and gestation-specific stillbirth risks, with fetuses still in utero as the denominator, were calculated from 24 to 44 weeks of gestation.MAIN OUTCOME MEASURES: Gestation-specific stillbirth rates and risks according to size at birth.RESULTS: The overall stillbirth rate was 4.22 per 1000 total births (95% CI 4.22-4.23) across all gestations. Applying the birth-based approach, the stillbirth rates were highest at 24 weeks of gestation, with 621.6 per 1000 total births (95% CI 620.9-622.2) for SGA pregnancies, 298.4 per 1000 total births (95% CI 298.1-298.7) for AGA pregnancies and 338.5 per 1000 total births (95% CI 337.9-339.0) for LGA pregnancies. Applying the fetuses-at-risk approach, the gestation-specific stillbirth risk was highest for SGA pregnancies (1.3-1.4 per 1000 fetuses at risk) prior to 29 weeks of gestation. The risk remained stable between 30 and 34 weeks of gestation, and then increased gradually from 35 weeks of gestation to the highest rate of 8.4 per 1000 fetuses at risk (95% CI 8.3-8.4) at ≥42 weeks of gestation. The stillbirth risk ratio (RR) was consistently high for SGA compared with AGA pregnancies, with the highest RR observed at ≥42 weeks of gestation (RR 9.2, 95% CI 15.2-13.2), and with the lowest RR observed at 24 weeks of gestation (RR 3.1, 95% CI 1.9-4.3). The stillbirth RR was also consistently high for SGA compared with AGA pregnancies across all countries, with national variability ranging from RR 0.70 (95% CI 0.43-0.97) in Mexico to RR 8.6 (95% CI 8.1-9.1) in Uruguay. No increased risk for LGA pregnancies was observed.CONCLUSIONS: Small for gestational age (SGA) was strongly associated with stillbirth risk in this study based on high-quality data from high- and middle-income countries. The highest RRs were seen in preterm gestations, with two-thirds of the stillbirths born as preterm births. To advance our understanding of stillbirth, further analyses should be conducted using high-quality data sets from low-income settings, particularly those with relatively high rates of SGA.</p

Vulnerable newborn types: Analysis of population-based registries for 165 million births in 23 countries, 2000-2021.

OBJECTIVE: To examine the prevalence of novel newborn types among 165 million live births in 23 countries from 2000 to 2021. DESIGN: Population-based, multi-country analysis. SETTING: National data systems in 23 middle- and high-income countries. POPULATION: Liveborn infants. METHODS: Country teams with high-quality data were invited to be part of the Vulnerable Newborn Measurement Collaboration. We classified live births by six newborn types based on gestational age information (preterm 90th centile) for gestational age, according to INTERGROWTH-21st standards. We considered small newborn types of any combination of preterm or SGA, and term + LGA was considered large. Time trends were analysed using 3-year moving averages for small and large types. MAIN OUTCOME MEASURES: Prevalence of six newborn types. RESULTS: We analysed 165 017 419 live births and the median prevalence of small types was 11.7% - highest in Malaysia (26%) and Qatar (15.7%). Overall, 18.1% of newborns were large (term + LGA) and was highest in Estonia 28.8% and Denmark 25.9%. Time trends of small and large infants were relatively stable in most countries. CONCLUSIONS: The distribution of newborn types varies across the 23 middle- and high-income countries. Small newborn types were highest in west Asian countries and large types were highest in Europe. To better understand the global patterns of these novel newborn types, more information is needed, especially from low- and middle-income countries

Building Connections with Families: Implementation of a Video-Messaging Service in the Neonatal Intensive Care Unit

Background: Family involvement is vital to optimize the care of infants in the neonatal intensive care unit (NICU). Various technologies have been used to support communication with parents in the NICU. The purpose of this study was to evaluate the parent and staff experience and perception of the use of a cloud-based video-messaging service in our NICU. Methods: This study was a single center observational study conducted at Mount Sinai Hospital, Toronto, Canada. Following the implementation of a video-messaging service, parent and staff surveys were distributed to evaluate their experience and perception. Results: Parent responses were positive with respect to how the service helped them feel: closer to their infant (100%) and reassured about their infant’s care (100%). Nursing staff responses indicated that they perceived a benefit to parents (100%) and to their building a relationship with families (79%). However, they also identified time constraints (85%) and the use of the technology hardware (24%) as challenges. Conclusions: The use of an asynchronous video-messaging service was perceived as beneficial to both parents and staff in the NICU. Complaints pertained to the impact of the technology on nursing workflow and the difficulty using the hardware provided for use of the service

Data for: "Neonatal mortality risk of large for gestational age and macrosomic live births in 15 countries including 115.6 million nationwide linked records, 2000–2020"

Data collected as part of a multi-country, population-based study to compare neonatal mortality risks of large for gestational age (>90th centile for sex and gestational age) and macrosomia (>4000g) in 15 countries including 115.6 million nationwide records, 2000-2020

Data for: "Neonatal mortality risk for vulnerable newborn types in 15 countries using 125.5 million nationwide birth outcome records, 2000–2020"

Data collected as part of a multi-country, population-based study to compare neonatal mortality risks by birthweight categories, gestational age, and newborn types

Data for: “Vulnerable newborn types: Analysis of population-based registries for 165 million births in 23 countries, 2000–2021”

Data collected as part of a multi-country, population-based study to explore the prevalence of Vulnerable Newborn Types combining gestational age (preterm vs term) and size of the newborn (small for gestational age [SGA 90th centile]) in 23 countries