Planned private homebirth in Victoria 2000-2015: a retrospective cohort study of Victorian perinatal data

Implications of maternal-fetal health on perinatal stem cell banking

Cell based therapies are being assessed for their therapeutic potential across a variety of diseases. Gestational tissues are attractive sources for cell therapy. The large number of births worldwide ensures sufficient access to gestational tissues, however, limited information has been reported around the impact of birth trends, delivery methods and pregnancy conditions on perinatal stem cell banking. This review describes the current state of banking of gestational tissues and their derived perinatal stem cells, discusses why the changes in birth trends and delivery methods could affect gestational tissue banking practices, and further explores how common pregnancy complications can potentially influence perinatal stem cell banking.

The financial impact of offering publicly funded homebirths: A population-based microsimulation in Queensland, Australia

BACKGROUND

Despite strong evidence of benefits and increasing consumer demand for homebirth, Australia has failed to effectively upscale it. To promote the adoption and expansion of homebirth in the public health care system, policymakers require quantifiable results to evaluate its economic value. To date, there has been limited evaluation of the financial impact of birth settings for women at low risk of pregnancy complications.

OBJECTIVE

This study aimed to examine the difference in inpatient costs around birth between offering homebirth in the public maternity system versus not offering public homebirth to selected women who meet low-risk pregnancy criteria.

METHODS

We used a whole-of-population linked administrative dataset containing all women who gave birth in Queensland (one Australian State) between 01/07/2012 and 30/06/2018 where publicly funded homebirth is not currently offered. We created a static microsimulation model to compare the inpatient cost difference for mother and baby around birth based on the women who gave birth between 01/07/2017 and 30/06/2018 (n = 36,314). The model comprised of a base model - representing standard public hospital care, and a counterfactual model - representing a hypothetical scenario where 5 % of women who gave birth in public hospitals planned to give birth at home prior to the onset of labour (n = 1816). Costs were reported in 2021/22 AUD.

RESULTS

In our hypothetical scenario, after considering the effect of assumptive place and mode of birth for these planned homebirths, the estimated State-level inpatient cost saving around birth (summed for mother and babies) per pregnancy were: AU$303.13 (to Queensland public hospitals) and AU$186.94 (to Queensland public hospital funders). This calculates to a total cost saving per annum of AU$11 million (to Queensland public hospitals) and AU$6.8 million (to Queensland public hospital funders).

CONCLUSION

A considerable amount of inpatient health care costs around birth could be saved if 5 % of women booked at their local public hospitals, planned to give birth at home through a public-funded homebirth program. This finding supports the establishment and expansion of the homebirth option in the public health care system.

Adaptation and validation of the Portuguese version of the provider attitudes towards planned home birth (PAPHB) Scale

Maternity health care professionals' attitudes on the option of home birth can influence the choices and decisions women and their partners make about place of birth. Midwives are particularly influential in this space. The study outlined in this paper aimed to translate and validate the Provider Attitudes towards Planned Home Birth (PAPHB) scale questionnaire for use in the Portuguese maternity context.

METHODS

A total of 118 Portuguese midwives were selected through intentional sampling. The procedure was divided into two phases. In the first phase, a triple translation from the original language into Portuguese and a cross-cultural adaptation of the Provider Attitudes towards Planned Home Birth (PAPHB) scale were carried out, obtaining three versions of the same questionnaire. The second phase consisted of the validation of the questionnaire, for which the Provider Attitudes towards Planned Home Birth (PAPHB) scale was submitted to a panel of 20 experts and to a pilot test. Subsequently, the reliability and statistical validity of the scale were evaluated.

RESULTS

After content analysis, the results confirmed a four-dimensional structure with a Cronbach's α value of 0.933 for the Provider Attitudes towards Planned Home Birth (PAPHB) scale as a whole, showing good internal consistency. Finally, a bivariate analysis was carried out identifying associations between variables and midwives' attitudes towards home birth. Positive attitudes towards homebirth were strongly influenced by previous clinical experience and exposure to home birth during midwives' academic education.

CONCLUSION

The 18-item scale is a reliable and valid tool to quantify attitudes towards planned home births in Portugal as the results obtained in the study showed very good internal consistency.

Ten years of a publicly funded homebirth service in Victoria: Maternal and neonatal outcomes

BACKGROUND

Rates of homebirth in Australia remain low, at less than 0.3% of all births.

AIMS

To report maternal and neonatal outcomes of ten years of a publicly funded homebirth service, 2009-2019.

METHOD

Retrospective analysis of clinical outcome data including neonatal outcomes of women who requested a homebirth at a large metropolitan health service in Victoria, Australia. The primary outcomes included: maternal outcomes (mortality, transfer to hospital, place and mode of birth, perineal status, type of third stage of labour, postpartum haemorrhage), and neonatal outcomes (mortality, Apgar score at five minutes, birthweight, breastfeeding initiation, significant morbidity, transfer to hospital).

RESULTS

Referrals for 827 women were reviewed; 633 remained eligible at 36 weeks gestation, and 473 (57%) birthed at home. Compared to women who did not, women who had a homebirth were significantly more likely to be multiparous, have a normal vaginal birth and an intact perineum, less likely to require suturing and less likely to have blood loss of more than 500 mL. Compared to infants not born at home, infants born at home were significantly less likely to require resuscitation, more likely to be of normal birthweight and exclusively receive breastmilk on discharge. There were no maternal deaths and one neonatal death of a baby born at home before the arrival of a midwife.

CONCLUSIONS

The outcomes for women accepted into the publicly funded homebirth program suggest appropriate triaging and case selection. A publicly funded homebirth program, with appropriate governance and clinical guidelines, appears to be a safe option for women experiencing low-risk pregnancies.

The opportunity costs of birth in Australia: Hospital resource savings for a post-COVID-19 era

BACKGROUND

COVID-19 caused significant disruptions to health systems globally; however, restricting the family presence during birth saw an increase in women considering community birth options. This study aimed to quantify the hospital resource savings that could occur if all low-risk women in Australia gave birth at home or in birth centers.

METHODS

A whole-of-population linked administrative data set containing all women (n = 44 498) who gave birth in Queensland, Australia, between 01/07/2012 and 30/06/2015 was reweighted to represent all Australian women giving birth in 2017. A static microsimulation model of woman and infant health service resource use was created based on 2017 data. The model was comprised of a base model, representing "current" care, and a counterfactual model, representing hypothetical scenarios where all low-risk Australian women gave birth at home or in birth centers.

RESULTS

If all low-risk women gave birth at home in 2017, cesarean rates would have reduced from 13.4% to 2.7%. Similarly, there would have been 860 fewer inpatient bed days and 10.1 fewer hours of women's intensive care unit time per 1000 births. If all women gave birth in birth centers, cesarean rates would have reduced to 6.7%. In addition, over 760 inpatient bed days would have been saved along with 5.6 hours of women's intensive care unit time per 1000 births.

CONCLUSIONS

Significant health resource savings could occur by shifting low-risk births from hospitals to home birth and birth center services. Greater examination of Australian women's preferences for home birth and birth center birth models of care is needed.

Inequality in out of pocket fees, government funding and utilisation of maternal health services in Australia

This study aimed to assess the distribution of service utilisation, out-of-pocket fees and government funding for maternal health care in Australia by socioeconomic group. A large linked administrative dataset was utilised. Women were grouped into socioeconomic quintiles using an area-based measure of socioeconomic status. Descriptive statistics were used to quantify the distribution of number of services, out of pocket fees, and government funding by socioeconomic quintile. Needs-adjusted concentration indices (CI_NA) were utilised to quantify inequity. The mean out of pocket fees for women of least socioeconomic advantage was $1,026 and for women of most socioeconomic advantage the mean was $2,432 (CI_NA 0.093, 95% CI: 0.088 - 0.098). However, use of many services were higher for women of most socioeconomic advantage: private obstetrician (CI_NA: 0.035, 95% CI: 0.032 - 0.038), other specialist services (CI_NA: 0.089, 95%CI: 0.083 - 0.094), and diagnostic and pathology tests (CI_NA: 0.027, 95%CI: 0.025 - 0.030). Federal government funding through Medicare was distributed towards women of most socioeconomic advantage (CI_NA: 0.036, 95%CI: 0.033 - 0.039); whereas government public hospital funding was skewed towards women of least socioeconomic advantage (CI_NA: -0.05, 95%CI: -0.057 - -0.046). Future policy changes in Australia's healthcare system need to ensure that women of least socioeconomic advantage have adequate access to maternity and early childhood care, and out of pocket fees are not an access barrier.

Planned Home Birth in Low-Risk Pregnancies in Spain: A Descriptive Study

Previous studies have shown that planned home birth in low-risk pregnancies is a generally safe option. However nowadays, only 0.5 percent of deliveries have been at home in Spain. This study sought to understand the characteristics of planned home births with qualified healthcare professionals in low-risk pregnancies and their results on maternal and neonatal health in the Balearic Islands. The study followed a retrospective descriptive design to investigate planned home births from 1989 to 2019 (n = 820). Sociodemographic data of women, healthcare professional intervention rates, and maternal/fetal morbidity/mortality results were collected. Statistical analysis of the results was performed using the IBM SPSS Version 25 software package. The results indicated that women with low-risk pregnancies who planned home births with a qualified midwife had a higher probability of spontaneous vaginal birth delivery and positive maternal health results. Furthermore, the risk of hospital transfer was low (10.7%) and the rate of prolonged breastfeeding (>1 year) was extremely high (99%). Moreover, the study showed that planned home births can be generally associated with fetal well-being. The conclusions and implications of this study are that planned home births in low-risk pregnancies attended by qualified midwives in the Balearic Islands achieve positive results in both maternal and newborn health, as well as low rates of obstetric intervention.

Inclusion and exclusion criteria for publicly-funded homebirth in Australia: A scoping review

BACKGROUND

There are fifteen publicly-funded homebirth programs currently operating in Australia. Suitability for these programs is determined by a series of inclusion and exclusion criteria.

AIM

The aim of this scoping review is to identify common inclusion and exclusion criteria for publicly-funded homebirth programs and other related factors that affect access to these programs.

METHODS

A Google search was conducted for publicly-funded homebirth programs listed on the National Publicly-funded Homebirth Consortium website. Public websites, documents, and policies were analysed to identify inclusion and exclusion criteria for these programs.

FINDINGS

Eleven of the 15 publicly-funded homebirth programs mention the availability of homebirth on their health service website, with varying levels of information about the inclusion and exclusion criteria available. Two of the programs with no information on their health service website are covered by a state-wide guideline. Additional details were sought directly from programs and obtaining further information from some individual homebirth programs was challenging. Variation in inclusion and exclusion criteria exists between programs. Common areas of variation include restrictions relating to Body Mass Index, parity, age, English language ability, tests required during pregnancy, and gestation at booking to the homebirth program.

CONCLUSION

The inclusion and exclusion criteria for a publicly-funded homebirth program determines women's access to the program. Limited publicly available information regarding inclusion and exclusion criteria for many publicly-funded homebirth programs is likely to limit women's awareness of and access to these programs.

Neonatal mortality in the United States is related to location of birth (hospital versus home) rather than the type of birth attendant

BACKGROUND

Planned home births have leveled off in the United States in recent years after a significant rise starting in the mid-2000s. Planned home births in the United States are associated with increased patient-risk profiles. Multiple studies concluded that, compared with hospital births, absolute and relative risks of perinatal mortality and morbidity in US planned home births are significantly increased.

OBJECTIVE

To explore the safety of birth in the United States by comparing the neonatal mortality outcomes of 2 locations, hospital birth and home birth, by 4 types of attendants: hospital midwife; certified nurse-midwife at home; direct-entry ("other") midwife at home; and attendant at home not identified, using the most recent US Centers for Disease Control and Prevention natality data on neonatal mortality for planned home births in the United States. Outcomes are presented as absolute risks (neonatal mortality per 10,000 live births) and as relative risks of neonatal mortality (hospital-certified nurse-midwife odds ratio, 1) overall, and for recognized risk factors.

STUDY DESIGN

We used the most current US Centers for Disease and Prevention Control Linked Birth and Infant Death Records for 2010-2017 to assess neonatal mortality (neonatal death days 0-27 after birth) for single, term (37+ weeks), normal-weight ( >2499 g) infants for planned home births and hospital births by birth attendants: hospital-certified nurse-midwives, home-certified nurse-midwives, home other midwives (eg, lay or direct-entry midwives), and other home birth attendant not identified.

RESULTS

The neonatal mortality for US hospital midwife-attended births was 3.27 per 10,000 live births, 13.66 per 10,000 live births for all planned home births, and 27.98 per 10,000 live births for unintended/unplanned home births. Planned home births attended by direct-entry midwives and by certified nurse-midwives had a significantly elevated absolute and relative neonatal mortality risk compared with certified nurse-midwife-attended hospital births (hospital-certified nurse-midwife: 3.27/10,000 live births odds ratio, 1; home birth direct-entry midwives: neonatal mortality 12.44/10,000 live births, odds ratio, 3.81, 95% confidence interval, 3.12-4.65, P<.0001; home birth-certified nurse-midwife: neonatal mortality 9.48/10,000 live births, odds ratio, 2.90, 95% confidence interval, 2.90; P<.0001). These differences increased further when patients were stratified for recognized risk factors.

CONCLUSION

The safety of birth in the United States varies by location and attendant. Compared with US hospital births attended by a certified nurse-midwife, planned US home births for all types of attendants are a less safe setting of birth, especially when recognized risk factors are taken into account. The type of midwife attending US planned home birth appears to have no differential effect on decreasing the absolute and relative risk of neonatal mortality of planned home birth, because the difference in outcomes of US planned home births attended by direct-entry midwives or by certified nurse-midwives is not statistically significant.

Assessment of rewarming methods in unplanned out-of-hospital births from a prospective cohort

Background

Mobile intensive care units frequently manage unplanned out-of-hospital births (UOHB). Rewarming methods during pre-hospital management of UOHB have not yet been compared. The aim was to compare rewarming methods used during pre-hospital management in a large prospective cohort of UOHB in France.

Methods

We analysed UOHB from the prospective AIE cohort from 25 prehospital emergency medical services in France. The primary outcome was the change in body temperature from arrival at scene to arrival at hospital.

Results

From 2011 to 2018, 1854 UOHB were recorded, of whom 520 were analysed. We found that using incubator care was the most effective rewarming method (+ 0.8 °C during transport), followed by the combination of plastic bag, skin-to-skin and cap (+ 0.2 °C). The associations plastic bag + cap and skin-to-skin + cap did not allow the newborn to be warmed up but rather to maintain initial temperature (+ 0.0 °C). The results of the multivariate model were consistent with these observations, with better rewarming with the use of an incubator. We also identified circumstances of increased risk of hypothermia according to classification and regression tree, like premature birth (< 37 weeks of gestation) and/or low outside temperature (< 8.4 °C).

Conclusions

Using an incubator was the most effective rewarming method during pre-hospital management of UOHB in our French prospective cohort. Based on our model, in cases of term less than 37 weeks of gestation or between 37 and 40 weeks with a low outside temperature or initial hypothermia, using such a method would be preferred.

Out-of-maternity deliveries in France: A nationwide population-based study

Introduction

In France, many maternity hospitals have been closed as a result of hospital restructuring in an effort to reduce costs through economies of scale. These closures have naturally increased the distance between home and the closest maternity ward for women throughout the country. However, studies have shown a positive correlation between this increase in distance and the incidence of unplanned out-of-maternity deliveries (OMD). This study was conducted to estimate the frequency of OMD in France, to identify the main risk factors and to assess their impact on maternal mortality and neonatal morbidity and mortality.

Materials and methods

We conducted a population-based observational retrospective study using data from 2012 to 2014 obtained from the French hospital discharge database. We included 2,256,797 deliveries and 1,999,453 singleton newborns in mainland France, among which, 6,733 (3.0‰) were OMD. The adverse outcomes were maternal mortality in hospital or during transport, stillbirth, neonatal mortality, neonatal hospitalizations, and newborn hypothermia and polycythemia. The socio-residential environment was also included in the regression analysis. Maternal and newborn adverse outcomes associated with OMD were analyzed with Generalized Estimating Equations regressions.

Results

The distance to the nearest maternity unit was the main factor for OMD. OMD were associated with maternal death (aRR 6.5 [1.6–26.3]) and all of the neonatal adverse outcomes: stillbirth (3.3 [2.8–3.8]), neonatal death (1.9 [1.2–3.1]), neonatal hospitalization (1.2 [1.1–1.3]), newborn hypothermia (5.9 [5.2–6.6]) and newborn polycythemia (4.8 [3.5–6.4]).

Discussion

In France, OMD increased over the study period. OMD were associated with all the adverse outcomes studied for mothers and newborns. Caregivers, including emergency teams, need to be better prepared for the management these at-risk cases. Furthermore, the increase in adverse outcomes, and the additional generated costs, should be considered carefully by the relevant authorities before any decisions are made to close or merge existing maternity units.

Determinants of home delivery in Nepal - A disaggregated analysis of marginalised and non-marginalised women from the 2016 Nepal Demographic and Health Survey

INTRODUCTION

In Nepal, a substantial proportion of women still deliver their child at home. Disparities have been observed in utilisation of institutional delivery and skilled birth attendant services. We performed a disaggregated analysis among marginalised and non-marginalised women to identify if different factors are associated with home delivery among these groups.

MATERIALS AND METHODS

This study used data from the 2016 Nepal Demographic and Health Survey. It involves the analysis of 3,837 women who had experienced at least one live birth in the five years preceding the survey. Women were categorised as marginalised and non-marginalised based on ethnic group. Bivariate and multivariable logistic regression analysis were performed to identify factors associated with home delivery.

RESULTS

A higher proportion of marginalised women delivered at home (47%) than non-marginalised women (26%). Compared to non-marginalised women (35%), a larger proportion of marginalised women (64%) felt that it was not necessary to give birth at health facility. The multivariable analysis indicated an independent association of having no or basic education, belonging to middle, poorer and the poorest wealth quintile, residing in Province 2 and not having completed of four antenatal care visits per protocol with home delivery among both marginalised and non-marginalised women. Whereas residing in a rural area, residing in Province 7, and at a distance of >30 minutes to a health facility were factors independently associated with home delivery only among marginalised women.

CONCLUSION

We conclude that poor education, poor economic status, non-completion of four ANC visits and belonging to Province 2 particularly determined either group of women to deliver at home, whereas residing in rural areas, living far from health facility, and belonging to Province 7 determined marginalised women to deliver at home. Preventing mothers from delivering at home would thus require focusing on specific geographical areas besides considering wider socio-economic determinants.

Mapping the trajectories for women and their babies from births planned at home, in a birth centre or in a hospital in New South Wales, Australia, between 2000 and 2012

BACKGROUND

In New South Wales (NSW) Australia, women at low risk of complications can choose from three birth settings: home, birth centre and hospital. Between 2000 and 2012, around 6.4% of pregnant women planned to give birth in a birth centre (6%) or at home (0.4%) and 93.6% of women planned to birth in a hospital. A proportion of the woman in the home and birth centre groups transferred to hospital. However, their pathways or trajectories are largely unknown.

AIM

The aim was to map the trajectories and interventions experienced by women and their babies from births planned at home, in a birth centre or in a hospital over a 13-year period in NSW.

METHODS

Using population-based linked datasets from NSW, women at low risk of complications, with singleton pregnancies, gestation 37-41 completed weeks and spontaneous onset of labour were included. We used a decision tree framework to depict the trajectories of these women and estimate the probabilities of the following: giving birth in their planned setting; being transferred; requiring interventions and neonatal admission to higher level hospital care. The trajectories were analysed by parity.

RESULTS

Over a 13-year period, 23% of nulliparous and 0.8% of multiparous women planning a home birth were transferred to hospital. In the birth centre group, 34% of nulliparae and 12% of multiparas were transferred to a hospital. Normal vaginal birth rates were higher in multiparous women compared to nulliparous women in all settings. Neonatal admission to SCN/NICU was highest in the planned hospital group for nulliparous women (10.1%), 7.1% for nulliparous women planning a birth centre birth and 5.1% of nulliparous women planning a homebirth. Multiparas had lower admissions to SCN/NICU for all thee settings (hospital 6.3%, BC 3.6%, home 1.6%, respectively).

CONCLUSIONS

Women who plan to give birth at home or in a birth centre have high rates of vaginal birth, even when transferred to hospital. Evidence on the trajectories of women who choose to give birth at home or in birth centres will assist the planning, costing and expansion of models of care in NSW.

A pathway to establish a publicly funded home birth program in Australia

BACKGROUND

Home births provide women a birth choice where they may feel more comfortable and confident in their ability to give birth.

PROBLEM

Most women in Victoria do not have publicly funded access to appropriately trained health professionals if they choose to give birth at home.

METHODS

This paper describes the process of setting up a publicly funded home birth service and provide details of description of the set up and governance. We also report outcomes over 9 years with respect to parity, transfer to hospital, adverse maternal and neonatal outcomes.

RESULTS

Of the 191 women who were still booked into the home birth program at 36 weeks gestation, 148 (77.5%) women gave birth at home and 43 (22.5%) women were transferred into the hospital. The overall rate of vaginal birth was also high among the women in the home birth program, 185 (96.9%) with no added complications ascribed to home births. Such as severe perineal trauma [n=1] 0.6% PPH [n=4] 2.7%, Apgar score less than 7 at 5min [n=0] admissions post home birth to special care nursery [n=2] 1.35%.

DISCUSSION

This unique study provides a detailed road map of setting up a home birth practice to facilitate other institutions keen to build a publicly funded home birth service. The birth outcome data was found to be consistent with other Australian studies on low risk home births.

CONCLUSION

Well-designed home birth programs following best clinical practices and procedures can provide a safe birthing option for low risk women.

Outcomes by birth setting and caregiver for low risk women in Indonesia: a systematic literature review

BACKGROUND

Care for women during pregnancy, labour, birth and the postpartum period is essential to reducing maternal and neonatal mortality and morbidity, however the ideal place and organisation of care provision has not been established. The World Health Organization recommends a two-tier maternity care system involving first-level care in community facilities, with backup obstetric hospital care. However, evidence from high-income countries is increasingly showing benefits for low risk women birthing outside of hospital with skilled birth assistance and access to backup care, including lower rates of intervention. Indonesia is a lower middle-income country with a network of village based midwives who attend births at homes, clinics and hospitals, and has reduced mortality rates in recent decades while maintaining largely low rates of intervention. However, the country has not met its neonatal or maternal mortality reduction goals, and it is unclear whether greater improvements could be made if all women birthed in hospital. BODY: This paper reviewed the literature on birth outcomes by place of birth and/or caregiver for women considering their risk of complications in Indonesia. A systematic literature search of Pubmed, CINAHL, CENTRAL, Web of Science, Popline, WHOLIS and clinical trials registers in 2016 and updated in 2018 resulted in screening 2211 studies after removing duplicates. Twenty four studies were found to present outcomes by place of birth or caregiver and were included. The studies were varied in their findings with respect of the outcomes for women birthing at home and in hospital, with and without skilled care. The quality of most studies was rated as poor or moderate using the Effective Public Health Practice Project Quality Assessment Tool. Only one study gave an overall assessment of the risk status of the women included, making it impossible to draw conclusions about outcomes for low risk women specifically; other studies adjusted for various individual risk factors.

CONCLUSION

From the studies in this review, it is impossible to assess the outcomes for low risk women birthing with health professionals within and outside of Indonesian hospitals. This finding is supported by reviews from other countries with developing maternity systems. Better evidence and information is needed before determinations can be made about whether attended birth outside of hospitals is a safe option for low risk women outside of high income countries.

Unplanned out-of-hospital birth and risk factors of adverse perinatal outcome: findings from a prospective cohort

Background

In France, while most babies are delivered at hospital, emergency medical services (EMS) weekly manage calls for unplanned out-of-hospital births. The objective of our study was to describe neonatal morbidity and mortality, defined as death or neonatal intensive care unit hospitalization at Day 7, in a prospective multicentric cohort of unplanned out-of-hospital births.

Methods

We prospectively analyzed out-of-hospital births from 25 prehospital EMS units in France. The primary outcome was neonatal morbidity and mortality, and the secondary outcome was risk factors associated with neonatal morbidity and mortality. A univariate logistic regression was first made, followed by a multivariate logistic regression with backward selection.

Results

From October 2011 to August 2018, a total of 1670 unplanned out-of-hospital births were included. Of these, 1652 (99.2%) were singleton and 1537 (93.5%) had prenatal care. Maternal mean age of the study population was 30 ± 5.5 (range 15 to 48). The majority of women were multiparous, but 13% were nulliparous. Overall, 45.3% of these unplanned out-of-hospital births were medically-driven, either by phone during medical regulation (12.5%) or on scene by the prehospital emergency medical service units (32.9%). The prevalence of neonatal morbidity and mortality was 6.3% (n = 106) after an unplanned out-of-hospital birth (death before Day 7: n = 20; 1.2%). The multivariate logistic regression found that multiparity (adjusted Odds Ratio = 70.7 [4.7–1062]), prematurity (adjusted Odds Ratio = 6.7 [2.1–21.4]), maternal pathology (adjusted Odds Ratio = 2.8 [1.0–7.5]) and hypothermia (adjusted Odds Ratio = 2.8 [1.1–7.6]) were independent predictive factors of neonatal morbidity and mortality.

Conclusions

Our study assessed for the first time risk factors for adverse perinatal outcome in a large and multicenter cohort of unplanned out-of-hospital births. We have to improve temperature management in the out-of-hospital field and future trials are required to investigate strategies to optimize newborns management in the prehospital area.

Electronic supplementary material

The online version of this article (10.1186/s13049-019-0600-z) contains supplementary material, which is available to authorized users.