The economic costs of intrapartum care in Tower Hamlets: A comparison between the cost of birth in a freestanding midwifery unit and hospital for women at low risk of obstetric complications

A systematic review of the cost-effectiveness of maternity models of care

OBJECTIVES

In this systematic review, we aimed to identify the full extent of cost-effectiveness evidence available for evaluating alternative Maternity Models of Care (MMC) and to summarize findings narratively.

METHODS

Articles that included a decision tree or state-based (Markov) model to explore the cost-effectiveness of an MMC, and at least one comparator MMC, were identified from a systematic literature review. The MEDLINE, Embase, Web of Science, CINAHL and Google Scholar databases were searched for papers published in English, Arabic, and French. A narrative synthesis was conducted to analyse results.

RESULTS

Three studies were included; all using cost-effectiveness decision tree models with data sourced from a combination of trials, databases, and the literature. Study quality was fair to poor. Each study compared midwife-led or doula-assisted care to obstetrician- or physician-led care. The findings from these studies indicate that midwife and doula led MMCs may provide value.

CONCLUSION

The findings of these studies indicate weak evidence that midwife and doula models of care may be a cost-effective or cost-saving alternative to standard care. However, the poor quality of evidence, lack of standardised MMC classifications, and the dearth of research conducted in this area are barriers to conclusive evaluation and highlight the need for more research incorporating appropriate models and population diversity.

Synthetic osmotic dilators (Dilapan-S) or dinoprostone vaginal inserts (Propess) for inpatient induction of labour: A UK cost-consequence model

OBJECTIVE

To estimate the costs of synthetic osmotic dilators (Dilapan-S) compared to dinoprostone vaginal inserts (Propess) for inpatient induction of labour (IOL).

STUDY DESIGN

A population-level, Markov model-based cost-consequence analysis was developed to compare the impact of using Dilapan-S versus Propess. The time horizon was modelled from admission to birth. The target population was women requiring inpatient IOL from 37 weeks with an unfavourable cervix in the UK. Mean population characteristics reflected those of the SOLVE (NCT03001661) trial. No patient data were included in this analysis. The care pathways and staff workload were modelled using data from the SOLVE trial and clinical experience. Cost and clinical inputs were sourced from the SOLVE trial and peer-reviewed literature. Costs were inflated to 2020 British pounds (GBP, £). Outcomes were reported as an average per woman for total costs and required staff time (minutes) from admission for IOL until birth. The model robustness was assessed using a probabilistic, multivariate sensitivity analysis of 2,000 simulations with results presented as the median (interquartile range, IQR).

RESULTS

Dilapan-S was cost neutral compared to Propess. Midwife and obstetrician times were decreased by 146 min (-11%) and 11 min (-54%), respectively. Sensitivity analysis showed that in 78% of simulations, use of Dilapan-S reduced midwife time with a median of -160 min (IQR -277 to -24 min). Costs were reduced in 54% of simulations (median -£33, IQR -£319 to £282).

CONCLUSIONS

The model indicates that adoption of Dilapan-S is likely to be cost-neutral and reduce staff workload in comparison to Propess. Results require support from real-world data and further exploration of Dilapan-S is to be encouraged.

What are the strategies for implementing primary care models in maternity? A systematic review on midwifery units

Background

Midwifery Units (MUs) are associated with optimal perinatal outcomes, improved service users’ and professionals’ satisfaction as well as being the most cost-effective option. However, they still do not represent the mainstream option of maternity care in many countries. Understanding effective strategies to integrate this model of care into maternity services could support and inform the MU implementation process that many countries and regions still need to approach.

Methods

A systematic search and screening of qualitative and quantitative research about implementation of new MUs was conducted (Prospero protocol reference: CRD42019141443) using PRISMA guidelines. Included articles were appraised using the CASP checklist. A meta-synthesis approach to analysis was used. No exclusion criteria for time or context were applied to ensure inclusion of different implementation attempts even under different historical and social circumstances. A sensitivity analysis was conducted to reflect the major contribution of higher quality studies.

Results

From 1037 initial citations, twelve studies were identified for inclusion in this review after a screening process. The synthesis highlighted two broad categories: implementation readiness and strategies used. The first included aspects related to cultural, organisational and professional levels of the local context whilst the latter synthesised the main actions and key points identified in the included studies when implementing MUs. A logic model was created to synthesise and visually present the findings.

Conclusions

The studies selected were from a range of settings and time periods and used varying strategies. Nonetheless, consistencies were found across different implementation processes. These findings can be used in the systematic scaling up of MUs and can help in addressing barriers at system, service and individual levels. All three levels need to be addressed when implementing this model of care.

Centralisation of acute obstetric care in the Netherlands: a qualitative study to explore the experiences of stakeholders with adaptations in organisation of care

Background

In the past decade, acute obstetric care (AOC) has become centralised in many high-income countries. In this qualitative study, we explored how stakeholders in maternity care perceived and experienced adaptations in the organisation of maternity care in areas in the Netherlands where AOC was centralised.

Methods

A heterogenic group of fifteen maternity care stakeholders, including patients, were purposively selected for semi-structured interviews. An inductive thematic analysis was used.

Results

Three main themes were identified: (1) lack of involvement. (2) the process of making adaptations in the organisation of maternity care. (3) maintaining quality of care. Stakeholders in this study were highly motivated to maintain a high quality of maternity care and therefore made adaptations at several organisational levels. However, they felt a lack of involvement during the planning of centralisation of AOC and highlighted the importance of a collaborative process when making adaptations after centralisation of AOC.

Conclusions

Regions with AOC centralisation plans should invest time and money in change management, encourage early involvement of all maternity care stakeholders and acknowledge centralisation of AOC as a professional life event with associated emotions, including a feeling of unsafety.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12913-021-07269-4.

Modelling the cost of place of birth: a pathway analysis

BACKGROUND

In New South Wales (NSW), Australia there are three settings available for women at low risk of complications to give birth: home, birth centre and hospital. Between 2000 and 2012, 93.6% of babies were planned to be born in hospital, 6.0% in a birth centre and 0.4% at home. Availability of alternative birth settings is limited and the cost of providing birth at home or in a birth centre from the perspective of the health system is unknown.

OBJECTIVES

The objective of this study was to model the cost of the trajectories of women who planned to give birth at home, in a birth centre or in a hospital from the public sector perspective.

METHODS

This was a population-based study using linked datasets from NSW, Australia. Women included met the following selection criteria: 37-41 completed weeks of pregnancy, spontaneous onset of labour, and singleton pregnancy at low risk of complications. We used a decision tree framework to depict the trajectories of these women and Australian Refined-Diagnosis Related Groups (AR-DRGs) were applied to each trajectory to estimate the cost of birth. A scenario analysis was undertaken to model the cost for 30 000 women in one year.

FINDINGS

496 387 women were included in the dataset. Twelve potential outcome pathways were identified and each pathway was costed using AR-DRGs. An overall cost was also calculated by place of birth: $AUD4802 for homebirth, $AUD4979 for a birth centre birth and $AUD5463 for a hospital birth.

CONCLUSION

The findings from this study provides some clarity into the financial saving of offering more options to women seeking an alternative to giving birth in hospital. Given the relatively lower rates of complex intervention and neonatal outcomes associated with women at low risk of complications, we can assume the cost of providing them with homebirth and birth centre options could be cost-effective.

Freestanding Midwife-Led Units: A Narrative Review

Background

Strengthening of midwives' position and support for freestanding birth centers, frequently referred to as Freestanding Midwife-led Units (FMUs), raise hopes for a return to humanized labor. Our study aimed to review published evidence regarding FMUs to systematize the knowledge of their functioning and to identify potential gaps in this matter.

Materials and Methods

A structured integrative review of theoretical papers and empirical studies was conducted. The literature search included MEDLINE, Cochrane, Scopus, and Embase databases. The analysis included papers published in 1977-2017. Relevant documents were identified using various combinations of search terms and standard Boolean operators. The search included titles, abstracts, and keywords. Additional records were found through a manual search of reference lists from extracted papers.

Results

Overall, 56 out of 107 originally found articles were identified as eligible for the review. Based on the critical analysis of published data, six groups of research problems were identified and discussed, namely, 1) specifics of FMUs, 2) costs of perinatal care at FMUs, 3) FMUs as a place for midwife education, 4) FMUs from midwives' perspective, 5) perinatal, maternal, and neonatal outcomes, and 6) FMUs from the perspective of a pregnant woman.

Conclusions

FMUs offers a home-like environment and complex midwifery support for women with uncomplicated pregnancies. Although emergency equipment is available as needed, FMU birth is considered a natural spontaneous process. Midwives' supervision over low-risk labors may provide many benefits, primarily related to lower medicalization and fewer medical interventions than in a hospital setting.

Factors influencing the utilisation of free-standing and alongside midwifery units in England: a qualitative research study

OBJECTIVE

To identify factors influencing the provision, utilisation and sustainability of midwifery units (MUs) in England.

DESIGN

Case studies, using individual interviews and focus groups, in six National Health Service (NHS) Trust maternity services in England.

SETTING AND PARTICIPANTS

NHS maternity services in different geographical areas of England Maternity care staff and service users from six NHS Trusts: two Trusts where more than 20% of all women gave birth in MUs, two Trusts where less than 10% of all women gave birth in MUs and two Trusts without MUs. Obstetric, midwifery and neonatal clinical leaders, managers, service user representatives and commissioners were individually interviewed (n=57). Twenty-six focus groups were undertaken with midwives (n=60) and service users (n=52).

MAIN OUTCOME MEASURES

Factors influencing MU use.

FINDINGS

The study findings identify several barriers to the uptake of MUs. Within a context of a history of obstetric-led provision and lack of decision-maker awareness of the clinical and economic evidence, most Trust managers and clinicians do not regard their MU provision as being as important as their obstetric unit (OU) provision. Therefore, it does not get embedded as an equal and parallel component in the Trust's overall maternity package of care. The analysis illuminates how implementation of complex interventions in health services is influenced by a range of factors including the medicalisation of childbirth, perceived financial constraints, adequate leadership and institutional norms protecting the status quo.

CONCLUSIONS

There are significant obstacles to MUs reaching their full potential, especially free-standing midwifery units. These include the lack of commitment by providers to embed MUs as an essential service provision alongside their OUs, an absence of leadership to drive through these changes and the capacity and willingness of providers to address women's information needs. If these remain unaddressed, childbearing women's access to MUs will continue to be restricted.

Factors influencing utilisation of ‘free-standing’ and ‘alongside’ midwifery units for low-risk births in England: a mixed-methods study

Background

Midwifery-led units (MUs) are recommended for ‘low-risk’ births by the National Institute for Health and Care Excellence but according to the National Audit Office were not available in one-quarter of trusts in England in 2013 and, when available, were used by only a minority of the low-risk women for whom they should be suitable. This study explores why.

Objectives

To map the provision of MUs in England and explore barriers to and facilitators of their development and use; and to ascertain stakeholder views of interventions to address these barriers and facilitators.

Design

Mixed methods – first, MU access and utilisation across England was mapped; second, local media coverage of the closure of free-standing midwifery units (FMUs) were analysed; third, case studies were undertaken in six sites to explore the barriers and facilitators that have an impact on the development of MUs; and, fourth, by convening a stakeholder workshop, interventions to address the barriers and facilitators were discussed.

Setting

English NHS maternity services.

Participants

All trusts with maternity services.

Interventions

Establishing MUs.

Main outcome measures

Numbers and types of MUs and utilisation of MUs.

Results

Births in MUs across England have nearly tripled since 2011, to 15% of all births. However, this increase has occurred almost exclusively in alongside units, numbers of which have doubled. Births in FMUs have stayed the same and these units are more susceptible to closure. One-quarter of trusts in England have no MUs; in those that do, nearly all MUs are underutilised. The study findings indicate that most trust managers, senior midwifery managers and obstetricians do not regard their MU provision as being as important as their obstetric-led unit provision and therefore it does not get embedded as an equal and parallel component in the trust’s overall maternity package of care. The analysis illuminates how provision and utilisation are influenced by a complex range of factors, including the medicalisation of childbirth, financial constraints and institutional norms protecting the status quo.

Limitations

When undertaking the case studies, we were unable to achieve representativeness across social class in the women’s focus groups and struggled to recruit finance directors for individual interviews. This may affect the transferability of our findings.

Conclusions

Although there has been an increase in the numbers and utilisation of MUs since 2011, significant obstacles remain to MUs reaching their full potential, especially FMUs. This includes the capacity and willingness of providers to address women’s information needs. If these remain unaddressed at commissioner and provider level, childbearing women’s access to MUs will continue to be restricted.

Future work

Work is needed on optimum approaches to improve decision-makers’ understanding and use of clinical and economic evidence in service design. Increasing women’s access to information about MUs requires further studies of professionals’ understanding and communication of evidence. The role of FMUs in the context of rural populations needs further evaluation to take into account user and community impact.

Funding

This project was funded by the National Institute for Health Research (NIHR) Health Services and Delivery Research programme and will be published in full in Health Services and Delivery Research; Vol. 8, No. 12. See the NIHR Journals Library website for further project information.

The cost of vaginal birth at home, in a birth centre or in a hospital setting in New South Wales: A micro-costing study

BACKGROUND

Women want greater choice of place of birth in New South Wales, Australia. It is perceived to be more costly to health services for women with a healthy pregnancy to give birth at home or in a birth centre. It is not known how much it costs the health service to provide care for women planning to give birth in these settings.

AIM

The aim of this study was to determine the direct cost of giving birth vaginally at home, in a birth centre or in a hospital for women at low risk of complications, in New South Wales.

METHODS

A micro-costing design was used. Observational (time and motion) and resource use data collection was undertaken to identify the staff time and resources required to provide care in a public hospital, birth centre or at home for women with a healthy pregnancy.

FINDINGS

The median cost of providing care for women who plan to give birth at home, in a birth centre and in a hospital were similar (AUD $2150.07, $2100.59 and $2097.30 respectively). Midwifery time was the largest contributor to the cost of birth at home, and overhead costs accounted for over half of the total cost of BC and hospital birth. The cost of consumables was low in all three settings.

CONCLUSION

In this study, we have found there is little difference in the cost to the health service when a woman has an uncomplicated vaginal birth at home, in a birth centre or in a hospital setting.

Cost-effectiveness of continuity of midwifery care for women with complex pregnancy: a structured review of the literature

BACKGROUND

Critical evaluation of the cost-effectiveness and clinical effectiveness of continuity of midwifery care models for women experiencing complex pregnancy is an important consideration in the review and reform of maternity services. Most studies either focus on women who experience healthy pregnancy or mixed risk samples. These results may not be generalised across the childbearing continuum to women with risk factors. This review critically evaluates studies that measure the cost of care for women with complex pregnancies, with a focus on method and quality.

AIMS / OBJECTIVES

To critically appraise and summarise the evidence relating to the combined cost-effectiveness, resource use and clinical effectiveness of midwifery continuity models for women who experience complex pregnancies and their babies in developed countries.

DESIGN

Structured review of the literature utilising a matrix method to critique the methods and quality of studies.

METHOD

A search of Medline, CINAHL, MIDIRS, DARE, EMBASE, OVID, PubMed, ProQuest, Informit, Science Direct, Cochrane Library, NHS Economic Evaluation Database (NHSEED) for the years 1994 - 2018 was conducted.

RESULTS

Nine articles met the inclusion criteria. The review identified four areas of economic evaluation that related to women who experienced complex pregnancy and continuity of midwifery care. (1) cost and clinical effectiveness comparisons between continuity of midwifery care versus obstetric-led units; (2) cost of continuity of midwifery care and/or team midwifery compared to Standard Care; (3) cost-effectiveness of continuity of midwifery care for Australian Aboriginal women versus standard care; (4) patterns of antenatal care for women of high obstetric risk and comparative provider cost. Cost savings specific to women from high risk samples who received continuity of midwifery care compared with obstetric-led standard care was stated for only one study in the review. Kenny et al. 1994 identified cost savings of AUS $29 in the antenatal period for women who received the midwifery team model from a stratified sub-set of high-risk pregnant woman within a mixed risk sample of 446 women. One systematic review relevant to the UK context, Ryan et al. (2013), applied sensitivity analysis to include women of all risk categories. Where risk ratio for overall fetal/neonatal death was systematically varied based on the 95% confidence interval of 0.79 to 1.09 from pooled studies, the aggregate annual net monetary benefit for continuity of midwifery care ranged extremely widely from an estimated gain of £472 million to a loss of £202 million. Net health benefit ranged from an annual gain of 15 723 QALYs to a loss of 6 738 QALYs. All other studies in this review reported cost savings narratively or within mixed risk samples where risk stratification was not clearly stated or related to the midwifery team model only.

CONCLUSIONS

Studies that measure the cost of continuity of midwifery care for women with complex pregnancy across the childbearing continuum are limited and apply inconsistent methods of economic evaluation. The cost and outcomes of implementing continuity of midwifery care for women with complex pregnancy is an important issue that requires further investigation. Robust cost-effectiveness evidence is essential to inform decision makers, to implement sustainable systems change in comparative maternity models for pregnant women at risk and to address health inequity.

'Keeping birth normal': Exploratory evaluation of a training package for midwives in an inner-city, alongside midwifery unit

OBJECTIVES

to gain understanding about how participants perceived the value and effectiveness of 'Keeping Birth Normal' training, barriers to implementing it in an along-side midwifery unit, and how the training might be enhanced in future iterations.

DESIGN

exploratory interpretive.

SETTING

inner-city maternity service.

PARTICIPANTS

31 midwives attending a one-day training package on one of three occasions.

METHODS

data were collected using semi-structured observation of the training, a short feedback form (23/31 participants), and focus groups (28/31 participants). Feedback form data were analysed using summative content analysis, following which all data sets were pooled and thematically analysed using a template agreed by the researchers.

FINDINGS

We identified six themes contributing to the workshop's effectiveness as perceived by participants. Three related to the workshop design: (1) balanced content, (2) sharing stories and strategies and (3) 'less is more.' And three related to the workshop leaders: (4) inspiration and influence, (5) cultural safety and (6) managing expectations. Cultural focus on risk and low prioritisation of normal birth were identified as barriers to implementing evidence-based practice supporting normal birth. Building a community of practice and the role of consultant midwives were identified as potential opportunities.

KEY CONCLUSIONS AND IMPLICATIONS FOR PRACTICE

a review of evidence, local statistics and practical skills using active educational approaches was important to this training. Two factors not directly related to content appeared equally important: catalysing a community of practice and the perceived power of workshop leaders to influence organisational systems limiting the agency of individual midwives. Cyclic, interactive training involving consultant midwives, senior midwives and the multidisciplinary team may be recommended to be most effective.