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

FIGO good practice recommendations on optimizing models of care for the prevention and mitigation of preterm birth

The global challenge of preterm birth persists with little or no progress being made to reduce its prevalence or mitigate its consequences, especially in low-resource settings where health systems are less well developed. Improved delivery of respectful person-centered care employing effective care models delivered by skilled healthcare professionals is essential for addressing these needs. These FIGO good practice recommendations provide an overview of the evidence regarding the effectiveness of the various care models for preventing and managing preterm birth across global contexts. We also highlight that continuity of care within existing, context-appropriate care models (such as midwifery-led care and group care), in primary as well as secondary care, is pivotal to delivering high quality care across the pregnancy continuum-prior to conception, through pregnancy and birth, and preparation for a subsequent pregnancy-to improve care to prevent and manage preterm birth.

Barriers and facilitators when implementing midwifery continuity of carer: a narrative analysis of the international literature

BACKGROUND

Midwifery continuity of carer (MCoC) is a model of care in which the same midwife or small team of midwives supports women throughout pregnancy, birth and the postnatal period. The model has been prioritised by policy makers in a number of high-income countries, but widespread implementation and sustainability has proved challenging.

METHODS

In this narrative review and synthesis of the global literature on the implementation and sustainability of midwifery continuity of carer, we identify barriers to, and facilitators of, this model of delivering maternity care. By mapping existing research evidence onto the Consolidated Framework for Implementation Research (CFIR), we identify factors for organisations to consider when planning and implementing midwifery continuity of carer as well as gaps in the current research evidence.

RESULTS

Analysing international evidence using the CFIR shows that evidence around midwifery continuity of carer implementation is patchy and fragmented, and that the impetus for change is not critically examined. Existing literature pays insufficient attention to core aspects of the innovation such as the centrality of on call working arrangements and alignment with the professional values of midwifery. There is also limited attention to the political and structural contexts into which midwifery continuity of carer is introduced.

CONCLUSIONS

By synthesizing international research evidence with the CFIR, we identify factors for organisations to consider when planning and implementing midwifery continuity of carer. We also call for more systematic and contextual evidence to aid understanding of the implementation or non-implementation of midwifery continuity of carer. Existing evidence should be critically evaluated and used more cautiously in support of claims about the model of care and its implementation, especially when implementation is occurring in different settings and contexts to the research being cited.

A cost analysis of upscaling access to continuity of midwifery carer: Population-based microsimulation in Queensland, Australia

OBJECTIVE

To quantify the economic impact of upscaling access to continuity of midwifery carer, compared with current standard maternity care, from the perspective of the public health care system.

METHODS

We created a static microsimulation model based on a whole-of-population linked administrative data set containing all public hospital births in one Australian state (Queensland) between July 2017 to June 2018 (n = 37,701). This model was weighted to represent projected State-level births between July 2023 and June 2031. Woman and infant health service costs (inpatient, outpatient and emergency department) during pregnancy and birth were summed. The base model represented current standard maternity care and a counterfactual model represented two hypothetical scenarios where 50 % or 65 % of women giving birth would access continuity of midwifery carer. Costs were reported in 2021/22 AUD.

RESULTS

The estimated cost savings to Queensland public hospital funders per pregnancy were $336 in 2023/24 and $546 with 50 % access. With 65 % access, the cost savings were estimated to be $534 per pregnancy in 2023/24 and $839 in 2030/31. A total State-level annual cost saving of $12 million in 2023/24 and $19 million in 2030/31 was estimated with 50 % access. With 65 % access, total State-level annual cost savings were estimated to be $19 million in 2023/24 and $30 million in 2030/31.

CONCLUSION

Enabling most childbearing women in Australia to access continuity of midwifery carer would realise significant cost savings for the public health care system by reducing the rate of operative birth.

Midwife continuity of care models versus other models of care for childbearing women

BACKGROUND

Midwives are primary providers of care for childbearing women globally and there is a need to establish whether there are differences in effectiveness between midwife continuity of care models and other models of care. This is an update of a review published in 2016.

OBJECTIVES

To compare the effects of midwife continuity of care models with other models of care for childbearing women and their infants.

SEARCH METHODS

We searched the Cochrane Pregnancy and Childbirth Trials Register, ClinicalTrials.gov, and the WHO International Clinical Trials Registry Platform (ICTRP) (17 August 2022), as well as the reference lists of retrieved studies.

SELECTION CRITERIA

All published and unpublished trials in which pregnant women are randomly allocated to midwife continuity of care models or other models of care during pregnancy and birth.

DATA COLLECTION AND ANALYSIS

Two authors independently assessed studies for inclusion criteria, scientific integrity, and risk of bias, and carried out data extraction and entry. Primary outcomes were spontaneous vaginal birth, caesarean section, regional anaesthesia, intact perineum, fetal loss after 24 weeks gestation, preterm birth, and neonatal death. We used GRADE to rate the certainty of evidence.

MAIN RESULTS

We included 17 studies involving 18,533 randomised women. We assessed all studies as being at low risk of scientific integrity/trustworthiness concerns. Studies were conducted in Australia, Canada, China, Ireland, and the United Kingdom. The majority of the included studies did not include women at high risk of complications. There are three ongoing studies targeting disadvantaged women. Primary outcomes Based on control group risks observed in the studies, midwife continuity of care models, as compared to other models of care, likely increase spontaneous vaginal birth from 66% to 70% (risk ratio (RR) 1.05, 95% confidence interval (CI) 1.03 to 1.07; 15 studies, 17,864 participants; moderate-certainty evidence), likelyreduce caesarean sections from 16% to 15% (RR 0.91, 95% CI 0.84 to 0.99; 16 studies, 18,037 participants; moderate-certainty evidence), and likely result in little to no difference in intact perineum (29% in other care models and 31% in midwife continuity of care models, average RR 1.05, 95% CI 0.98 to 1.12; 12 studies, 14,268 participants; moderate-certainty evidence). There may belittle or no difference in preterm birth (< 37 weeks) (6% under both care models, average RR 0.95, 95% CI 0.78 to 1.16; 10 studies, 13,850 participants; low-certainty evidence). We arevery uncertain about the effect of midwife continuity of care models on regional analgesia (average RR 0.85, 95% CI 0.79 to 0.92; 15 studies, 17,754 participants, very low-certainty evidence), fetal loss at or after 24 weeks gestation (average RR 1.24, 95% CI 0.73 to 2.13; 12 studies, 16,122 participants; very low-certainty evidence), and neonatal death (average RR 0.85, 95% CI 0.43 to 1.71; 10 studies, 14,718 participants; very low-certainty evidence). Secondary outcomes When compared to other models of care, midwife continuity of care models likely reduce instrumental vaginal birth (forceps/vacuum) from 14% to 13% (average RR 0.89, 95% CI 0.83 to 0.96; 14 studies, 17,769 participants; moderate-certainty evidence), and may reduceepisiotomy 23% to 19% (average RR 0.83, 95% CI 0.77 to 0.91; 15 studies, 17,839 participants; low-certainty evidence). When compared to other models of care, midwife continuity of care models likelyresult in little to no difference inpostpartum haemorrhage (average RR 0.92, 95% CI 0.82 to 1.03; 11 studies, 14,407 participants; moderate-certainty evidence) and admission to special care nursery/neonatal intensive care unit (average RR 0.89, 95% CI 0.77 to 1.03; 13 studies, 16,260 participants; moderate-certainty evidence). There may be little or no difference in induction of labour (average RR 0.92, 95% CI 0.85 to 1.00; 14 studies, 17,666 participants; low-certainty evidence), breastfeeding initiation (average RR 1.06, 95% CI 1.00 to 1.12; 8 studies, 8575 participants; low-certainty evidence), and birth weight less than 2500 g (average RR 0.92, 95% CI 0.79 to 1.08; 9 studies, 12,420 participants; low-certainty evidence). We are very uncertain about the effect of midwife continuity of care models compared to other models of care onthird or fourth-degree tear (average RR 1.10, 95% CI 0.81 to 1.49; 7 studies, 9437 participants; very low-certainty evidence), maternal readmission within 28 days (average RR 1.52, 95% CI 0.78 to 2.96; 1 study, 1195 participants; very low-certainty evidence), attendance at birth by a known midwife (average RR 9.13, 95% CI 5.87 to 14.21; 11 studies, 9273 participants; very low-certainty evidence), Apgar score less than or equal to seven at five minutes (average RR 0.95, 95% CI 0.72 to 1.24; 13 studies, 12,806 participants; very low-certainty evidence) andfetal loss before 24 weeks gestation (average RR 0.82, 95% CI 0.67 to 1.01; 12 studies, 15,913 participants; very low-certainty evidence). No maternal deaths were reported across three studies. Although the observed risk of adverse events was similar between midwifery continuity of care models and other models, our confidence in the findings was limited. Our confidence in the findings was lowered by possible risks of bias, inconsistency, and imprecision of some estimates. There were no available data for the outcomes: maternal health status, neonatal readmission within 28 days, infant health status, and birth weight of 4000 g or more. Maternal experiences and cost implications are described narratively. Women receiving care from midwife continuity of care models, as opposed to other care models, generally reported more positive experiences during pregnancy, labour, and postpartum. Cost savings were noted in the antenatal and intrapartum periods in midwife continuity of care models.

AUTHORS' CONCLUSIONS

Women receiving midwife continuity of care models were less likely to experience a caesarean section and instrumental birth, and may be less likely to experience episiotomy. They were more likely to experience spontaneous vaginal birth and report a positive experience. The certainty of some findings varies due to possible risks of bias, inconsistencies, and imprecision of some estimates. Future research should focus on the impact on women with social risk factors, and those at higher risk of complications, and implementation and scaling up of midwife continuity of care models, with emphasis on low- and middle-income countries.

Midwifery group practice workforce in Australia: A cross-sectional survey of midwives and managers

BACKGROUND

Despite robust evidence on the benefits of midwifery group practice (MGP), there remains difficulties with implementing and sustaining the model. However, contemporary data on the MGP workforce and how each model has been operationalised are limited. This constrains an understanding of the factors that help or hinder implementation and sustainability of MGP.

AIM

To describe the characteristics of Australian MGPs and the factors that help or hinder sustainability.

METHODS

A national cross-sectional survey was undertaken in Australia between March 2021 and July 2022, inclusive. Quantitative data were analysed using descriptive analysis while qualitative data were analysed using content analysis.

FINDINGS

Of 669 survey responses, 579 were midwives and 90 were managers. The mean years of experience for clinical midwives was eight years, and 47.8% (almost twice the national average) completed a Bachelor of Midwifery (BMid). Half (50.2%) the models provided care for women of all risk. Midwives resigned from MGP because of the MGP work conditions (30%) and how the service was managed or supported (12.7%). Managers resigned from MGP because of role changes, conflict with their manager, and limited support. Almost half (42.6%) of MGP managers also managed other areas, leading to heavy workloads, competing demands, and burnout.

CONCLUSION

The BMid appears to be a common educational pathway for MGP midwives, and many MGP services are providing care to women with complexities. Flexible practice agreements, organisational support and appropriate workloads are vital for recruitment, retention, and sustainability of MGP.

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.

Exploring health care professionals' experiences and knowledge of woman-centred care in a university hospital

Inspired by the six quality-of-care goals developed by the Institute of Medicine, woman-centred care (WCC) as model of care is used in maternity services as it gives an emphasis on the woman as an individual and not her status as a patient. Bringing stronger attention to women's needs and values, is proven to have clear benefits for perinatal outcomes, but fails to be known or recognised by healthcare professionals' (HCPs) and implemented. Using a mixed-methods approach, this study aimed to explore HCPs definitions of WCC and identify the degree of agreement and knowledge regarding perinatal indicators when a WCC model of care is implemented. The quantitative part was carried using a self-administered questionnaire with perinatal indicators identified from the literature. Semi-structured interviews were realized using a purposive sample of 15 HCPs and an interview grid inspired by Leap's WCC model. The study was conducted in the maternity of a university hospital in French-speaking part of Switzerland. Out of 318 HCPs working with mothers and their newborns, 51% had already heard of WCC without being familiar with Leap's model. The HCPs were aware of the positive perinatal care outcomes when WCC was implemented: women's satisfaction (99.2%), health promotion (97.6%), HCP's job satisfaction (93.2%) and positive feelings about their work (85.6%), which were strongly emphasised in the interviews. The respondents reported institutional difficulties in implementing the model such as administrative overload and lack of time. The positive outcomes of WCC on spontaneous deliveries and improved neonatal adaptation were known by most HCPs (63.4% and 59.9%, respectively). However, fewer than half of the HCPs highlighted the model's positive effects on analgesia and episiotomies or its financial benefits. Knowledge of quality-of-care outcomes (i.e women's satisfaction, positive impact on practice…) was prevalent among most of HCPs. Without adhering to a common definition and without a specific model for consensus, most providers have integrated some aspects of WCC into their practice. However, specific perinatal indicators remain largely unknown, which may hinder the implementation of WCC.

Midwifery continuity of care for women with complex pregnancies in Australia: An integrative review

BACKGROUND

All women require access to quality maternity care. Continuity of midwifery care can enhance women's experiences of childbearing and is associated with positive outcomes for women and infants. Much research on these models has been conducted with women with uncomplicated pregnancies; less is known about outcomes for women with complexities.

AIM

To explore the outcomes and experiences for women with complex pregnancies receiving midwifery continuity of care in Australia.

METHODS

This integrative review used Whittemore and Knafl's approach. Authors searched five electronic databases (PubMed/MEDLINE, EMBASE, CINAHL, Scopus, and MAG Online) and assessed the quality of relevant studies using the Critical Appraisal Skills Programme (CASP) appraisal tools.

FINDINGS

Fourteen studies including women with different levels of obstetric risk were identified. However, only three reported outcomes separately for women categorised as either moderate or high risk. Perinatal outcomes reported included mode of birth, intervention rates, blood loss, perineal trauma, preterm birth, admission to special care and breastfeeding rates. Findings were synthesised into three themes: 'Contributing to safe processes and outcomes', 'Building relational trust', and 'Collaborating and communicating'. This review demonstrated that women with complexities in midwifery continuity of care models had positive experiences and outcomes, consistent with findings about low risk women.

DISCUSSION

The nascency of the research on midwifery continuity of care for women with complex pregnancies in Australia is limited, reflecting the relative dearth of these models in practice.

CONCLUSION

Despite favourable findings, further research on outcomes for women of all risk is needed to support the expansion of midwifery continuity of care.

Obstetrician involvement in planned midwife-led births: a cohort study in an obstetric department of a University Hospital in Switzerland

Background

Healthy women with low risk singleton pregnancies are offered a midwife-led birth model at our department. Exclusion criteria for midwife-led births include a range of abnormalities in medical history and during the course of pregnancy. In case of complications before, during or after labor and birth, an obstetrician is involved. The purpose of this study was 1) to evaluate the frequency of and reasons for secondary obstetrician involvement in planned midwife-led births and 2) to assess the maternal and neonatal outcome.

Methods

We analyzed a cohort of planned midwife-led births during a 14 years period (2006-2019). Evaluation included a comparison between midwife-led births with or without secondary obstetrician involvement, regarding maternal characteristics, birth mode, and maternal and neonatal outcome. Statistical analysis was performed by unpaired t-tests and Chi-square tests.

Results

In total, there were 532 intended midwife-led births between 2006 and 2019 (2.6% of all births during this time-period at the department). Among these, 302 (57%) women had spontaneous vaginal births as midwife-led births. In the remaining 230 (43%) births, obstetricians were involved: 62% of women with obstetrician involvement had spontaneous vaginal births, 25% instrumental vaginal births and 13% caesarean sections. Overall, the caesarean section rate was 5.6% in the whole cohort of women with intended midwife-led births. Reasons for obstetrician involvement primarily included necessity for labor induction, abnormal fetal heart rate monitoring, thick meconium-stained amniotic fluid, prolonged first or second stage of labor, desire for epidural analgesia, obstetrical anal sphincter injuries, retention of placenta and postpartum hemorrhage. There was a significantly higher rate of primiparous women in the group with obstetrician involvement. Arterial umbilical cord pH < 7.10 occurred significantly more often in the group with obstetrician involvement, while 5′ Apgar score < 7 did not differ significantly. The overall transfer rate of newborns to neonatal intensive care unit was low (1.3%).

Conclusion

A midwife-led birth in our setting is a safe alternative to a primarily obstetrician-led birth, provided that selection criteria are being followed and prompt obstetrician involvement is available in case of abnormal course of labor and birth or postpartum complications.

Effects of a Midwife-Coordinated Maternity Care Intervention (ChroPreg) vs. Standard Care in Pregnant Women with Chronic Medical Conditions: Results from a Randomized Controlled Trial

The proportion of childbearing women with pre-existing chronic medical conditions (CMC) is rising. In a randomized controlled trial, we aimed to evaluate the effects of a midwife-coordinated maternity care intervention (ChroPreg) in pregnant women with CMC. The intervention consisted of three main components: (1) Midwife-coordinated and individualized care, (2) Additional ante-and postpartum consultations, and (3) Specialized known midwives. The primary outcome was the total length of hospital stay (LOS). Secondary outcomes were patient-reported outcomes measuring psychological well-being and satisfaction with maternity care, health utilization, and maternal and infant outcomes. A total of 362 women were randomized to the ChroPreg intervention (n = 131) or Standard Care (n = 131). No differences in LOS were found between groups (median 3.0 days, ChroPreg group 0.1% lower LOS, 95% CI −7.8 to 7%, p = 0.97). Women in the ChroPreg group reported being more satisfied with maternity care measured by the Pregnancy and Childbirth Questionnaire (PCQ) compared with the Standard Care group (mean PCQ 104.5 vs. 98.2, mean difference 6.3, 95% CI 3.0–10.0, p < 0.0001). In conclusion, the ChroPreg intervention did not reduce LOS. However, women in the ChroPreg group were more satisfied with maternity care.

Midwifery knowledge of equitable and culturally safe maternity care for Aboriginal women

BACKGROUND

The Birthing on Noongar Boodjar project (NHMRC Partnership Project #GNT1076873) investigated Australian Aboriginal women and midwives' views of culturally safe care during childbearing. This paper reports on midwifery knowledge of Aboriginal women's cultural needs, their perceptions of health systems issues, and their ability to provide equitable and culturally safe care.

METHOD

A qualitative study framed by an Indigenous methodology and methods which supported inductive, multilayered analyses and consensus-driven interpretations for two clinical midwife data groups (n = 61) drawn from a larger project data set (n = 145) comprising Aboriginal women and midwives.

FINDINGS

Midwives demonstrated limited knowledge of Aboriginal women's cultural childbearing requirements, reported inadequate access to cultural education, substituted references to women-centered care in the absence of culturally relevant knowledge and consistently expressed racialized assumptions. Factors identified by midwives as likely to influence the midwifery workforce enabling them to provide culturally safe care for Aboriginal women included more professional development focused on improving understandings of cultural birth practices and health system changes which create safer maternal health care environments for Aboriginal women.

CONCLUSIONS

Individual, workforce, and health systems issues impact midwives' capability to meet Aboriginal women's cultural needs. An imperative exists for effective cultural education and improved professional accountability regarding Aboriginal women's perinatal requirements and significant changes in health systems to embed culturally safe woman-centered care models as a means of addressing racism in health care.

Cost of maternity care to public hospitals: a first 1000-days perspective from Queensland

Objective This study sought to compare costs for women giving birth in different public hospital services across Queensland and their babies. Methods A whole-of-population linked administrative dataset was used containing all health service use in a public hospital in Queensland for women who gave birth between 1 July 2012 and 30 June 2015 and their babies. Generalised linear models were used to compare costs over the first 1000 days between hospital and health services. Results The mean unadjusted cost for each woman and her baby (n = 134910) was A$17406 in the first 1000 days. After adjusting for clinical and demographic factors and birth type, women and their babies who birthed in the Cairns Hospital and Health Service (HHS) had costs 19% lower than those who birthed in Gold Coast HHS (95% confidence interval (CI) -32%, -4%); women and their babies who birthed at the Mater public hospitals had costs 28% higher than those who birthed at Gold Coast HHS (95% CI 8, 51). Conclusions There was considerable variation in costs between hospital and health services in Queensland for the costs of delivering maternity care. Cost needs to be considered as an important additional element of monitoring programs. What is known about the topic? The Australian maternal care system delivers high-quality, safe care to Australian mothers. However, this comes at a considerable financial cost to the Australian public health system. It is known that there are variations in the cost of care depending upon the model of care a woman receives, and the type of delivery she has, with higher-cost treatment not necessarily being safer or producing better outcomes. What does this paper add? This paper compares the cost of delivering a full cycle of maternity care to a woman at different HHSs across Queensland. It demonstrates that there is considerable variation in cost across HHSs, even after adjusting for clinical and demographic factors. What are the implications for practitioners? Reporting of cost should be an ongoing part of performance monitoring in public hospital maternity care alongside clinical outcomes to ensure the sustainability of the high-quality maternal health care Australian public hospitals deliver.

Perceived satisfaction of women during labour at the Hospital Universitario Materno-Infantil of the Canary Islands through the Childbirth Experience Questionnaire (CEQ-E)

OBJECTIVE

To determine the degree of satisfaction of women after childbirth at the Hospital Universitario Materno-Infantil of Gran Canaria (HUMIC) and to establish possible relationships between the degree of satisfaction and the variables studied.

METHOD

A cross-sectional, descriptive, observational study with an analytical component. The study population comprised women who gave birth at the HUMIC in November 2018, recruited through consecutive non-probabilistic sampling. The Spanish version of the Childbirth Experience Questionnaire (CEQ-E) was used (questionnaire with 4 domains: own capacity', professional support, perceived safety and participation/analytical model 2). In a first phase a descriptive analysis was made, and in a second phase an inferential analysis to explore the association between different variables.

RESULTS

The total sample comprised 257 women (n=257). The total score using the CEQ was 3.24 (SD .37 points). No statistically significant differences were found in the final CEQ score between the women who had a spontaneous delivery versus induction-stimulation (P=.563) or between primiparous versus multiparous women (P=.060). The women whose labour lasted 12hours or less (P=.024), without perineal trauma (P=.021) and those who had not undergone episiotomy (P=.002) achieved a better final CEQ score. Instrumental delivery (forceps) versus normal delivery is associated with lower scores with respect to the final CEQ-E score (P=≤.001).

CONCLUSIONS

Women's overall satisfaction after delivery in HUMIC was high. Instrumental delivery seems to be associated with lower perceived satisfaction. Aspects such as fear and fatigue in labour could affect satisfaction negatively. These aspects can be improved by establishing strategies to increase comfort and minimise pregnant women's fear of labour.