Caseload midwifery care versus standard maternity care for women of any risk

M@NGO, a randomised controlled trial

Sally K. Tracy, Donna L. Hartz, Mark B. Tracy, Jyai Allen, Amanda Forti, Bev Hall, Jan White, Anne Lainchbury, Helen Stapleton, Michael Beckmann, Andrew Bisits, Caroline Homer, Maralyn Foureur, Alec Welsh, Sue Kildea

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Background: Women at low risk of pregnancy complications benefit from continuity of midwifery care, but no trial evidence exists for women with identifi ed risk factors. We aimed to assess the clinical and cost outcomes of caseload midwifery care for women irrespective of risk factors. 

Methods: In this unblinded, randomised, controlled, parallel-group trial, pregnant women at two metropolitan teaching hospitals in Australia were randomly assigned to either caseload midwifery care or standard maternity care by a telephone-based computer randomisation service. Women aged 18 years and older were eligible if they were less than 24 weeks pregnant at the first booking visit. Those who booked with another care provider, had a multiple pregnancy, or planned to have an elective caesarean section were excluded. Women allocated to caseload care received antenatal, intrapartum, and postnatal care from a named caseload midwife (or back-up caseload midwife). Controls received standard care with rostered midwives in discrete wards or clinics. The participant and the clinician were not masked to assignment. The main primary outcome was the proportion of women who had a caesarean section. The other primary maternal outcomes were the proportions who had an instrumental or unassisted vaginal birth, and the proportion who had epidural analgesia during labour. Primary neonatal outcomes were Apgar scores, preterm birth, and admission to neonatal intensive care. We analysed all outcomes by inten tion to treat. The trial is registered with the Australian New Zealand Clinical Trials Registry, number ACTRN12609000349246. 

Findings: Publicly insured women were screened at the participating hospitals between Dec 8, 2008, and May 31, 2011. 1748 pregnant women were randomly assigned, 871 to caseload and 877 to standard care. The proportion of caesarean sections did not differ between the groups (183 [21%] in the caseload group vs 204 [23%] in the standard care group; odds ratio [OR] 0•88, 95% CI 0•70-1•10; p=0•26). The proportion of women who had elective caesarean sections (before onset of labour) diff ered signifi cantly between caseload and standard care (69 [8%] vs 94 [11%]; OR 0•72, 95% CI 0•52-0•99; p=0•05). Proportions of instrumental birth were similar (172 [20%] vs 171 [19%]; p=0•90), as were the proportions of unassisted vaginal births (487 [56%] vs 454 [52%]; p=0•08) and epidural use (314 [36%] vs 304 [35%]; p=0•54). Neonatal outcomes did not diff er between the groups. Total cost of care per woman was AUS$566•74 (95% 106•17-1027•30; p=0•02) less for caseload midwifery than for standard maternity care. 

Interpretation: Our results show that for women of any risk, caseload midwifery is safe and cost-effective.

Original languageEnglish
Pages (from-to)1723-1732
Number of pages10
JournalThe Lancet
Volume382
Issue number9906
DOIs
Publication statusPublished - Nov 2013
Externally publishedYes

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Midwifery
Standard of Care
Randomized Controlled Trials
Cesarean Section
Parturition
Costs and Cost Analysis
Pregnant Women
Odds Ratio
Postnatal Care
Labor Onset
Neonatal Intensive Care
Multiple Pregnancy
Continuity of Patient Care
Epidural Analgesia
Prenatal Care
Apgar Score
Pregnancy Complications
Urban Hospitals
Premature Birth
Random Allocation

Cite this

Tracy, Sally K. ; Hartz, Donna L. ; Tracy, Mark B. ; Allen, Jyai ; Forti, Amanda ; Hall, Bev ; White, Jan ; Lainchbury, Anne ; Stapleton, Helen ; Beckmann, Michael ; Bisits, Andrew ; Homer, Caroline ; Foureur, Maralyn ; Welsh, Alec ; Kildea, Sue. / Caseload midwifery care versus standard maternity care for women of any risk : M@NGO, a randomised controlled trial. In: The Lancet. 2013 ; Vol. 382, No. 9906. pp. 1723-1732.
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abstract = "Background: Women at low risk of pregnancy complications benefit from continuity of midwifery care, but no trial evidence exists for women with identifi ed risk factors. We aimed to assess the clinical and cost outcomes of caseload midwifery care for women irrespective of risk factors. Methods: In this unblinded, randomised, controlled, parallel-group trial, pregnant women at two metropolitan teaching hospitals in Australia were randomly assigned to either caseload midwifery care or standard maternity care by a telephone-based computer randomisation service. Women aged 18 years and older were eligible if they were less than 24 weeks pregnant at the first booking visit. Those who booked with another care provider, had a multiple pregnancy, or planned to have an elective caesarean section were excluded. Women allocated to caseload care received antenatal, intrapartum, and postnatal care from a named caseload midwife (or back-up caseload midwife). Controls received standard care with rostered midwives in discrete wards or clinics. The participant and the clinician were not masked to assignment. The main primary outcome was the proportion of women who had a caesarean section. The other primary maternal outcomes were the proportions who had an instrumental or unassisted vaginal birth, and the proportion who had epidural analgesia during labour. Primary neonatal outcomes were Apgar scores, preterm birth, and admission to neonatal intensive care. We analysed all outcomes by inten tion to treat. The trial is registered with the Australian New Zealand Clinical Trials Registry, number ACTRN12609000349246. Findings: Publicly insured women were screened at the participating hospitals between Dec 8, 2008, and May 31, 2011. 1748 pregnant women were randomly assigned, 871 to caseload and 877 to standard care. The proportion of caesarean sections did not differ between the groups (183 [21{\%}] in the caseload group vs 204 [23{\%}] in the standard care group; odds ratio [OR] 0•88, 95{\%} CI 0•70-1•10; p=0•26). The proportion of women who had elective caesarean sections (before onset of labour) diff ered signifi cantly between caseload and standard care (69 [8{\%}] vs 94 [11{\%}]; OR 0•72, 95{\%} CI 0•52-0•99; p=0•05). Proportions of instrumental birth were similar (172 [20{\%}] vs 171 [19{\%}]; p=0•90), as were the proportions of unassisted vaginal births (487 [56{\%}] vs 454 [52{\%}]; p=0•08) and epidural use (314 [36{\%}] vs 304 [35{\%}]; p=0•54). Neonatal outcomes did not diff er between the groups. Total cost of care per woman was AUS$566•74 (95{\%} 106•17-1027•30; p=0•02) less for caseload midwifery than for standard maternity care. Interpretation: Our results show that for women of any risk, caseload midwifery is safe and cost-effective.",
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Tracy, SK, Hartz, DL, Tracy, MB, Allen, J, Forti, A, Hall, B, White, J, Lainchbury, A, Stapleton, H, Beckmann, M, Bisits, A, Homer, C, Foureur, M, Welsh, A & Kildea, S 2013, 'Caseload midwifery care versus standard maternity care for women of any risk: M@NGO, a randomised controlled trial', The Lancet, vol. 382, no. 9906, pp. 1723-1732. https://doi.org/10.1016/S0140-6736(13)61406-3

Caseload midwifery care versus standard maternity care for women of any risk : M@NGO, a randomised controlled trial. / Tracy, Sally K.; Hartz, Donna L.; Tracy, Mark B.; Allen, Jyai; Forti, Amanda; Hall, Bev; White, Jan; Lainchbury, Anne; Stapleton, Helen; Beckmann, Michael; Bisits, Andrew; Homer, Caroline; Foureur, Maralyn; Welsh, Alec; Kildea, Sue.

In: The Lancet, Vol. 382, No. 9906, 11.2013, p. 1723-1732.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Caseload midwifery care versus standard maternity care for women of any risk

T2 - M@NGO, a randomised controlled trial

AU - Tracy, Sally K.

AU - Hartz, Donna L.

AU - Tracy, Mark B.

AU - Allen, Jyai

AU - Forti, Amanda

AU - Hall, Bev

AU - White, Jan

AU - Lainchbury, Anne

AU - Stapleton, Helen

AU - Beckmann, Michael

AU - Bisits, Andrew

AU - Homer, Caroline

AU - Foureur, Maralyn

AU - Welsh, Alec

AU - Kildea, Sue

PY - 2013/11

Y1 - 2013/11

N2 - Background: Women at low risk of pregnancy complications benefit from continuity of midwifery care, but no trial evidence exists for women with identifi ed risk factors. We aimed to assess the clinical and cost outcomes of caseload midwifery care for women irrespective of risk factors. Methods: In this unblinded, randomised, controlled, parallel-group trial, pregnant women at two metropolitan teaching hospitals in Australia were randomly assigned to either caseload midwifery care or standard maternity care by a telephone-based computer randomisation service. Women aged 18 years and older were eligible if they were less than 24 weeks pregnant at the first booking visit. Those who booked with another care provider, had a multiple pregnancy, or planned to have an elective caesarean section were excluded. Women allocated to caseload care received antenatal, intrapartum, and postnatal care from a named caseload midwife (or back-up caseload midwife). Controls received standard care with rostered midwives in discrete wards or clinics. The participant and the clinician were not masked to assignment. The main primary outcome was the proportion of women who had a caesarean section. The other primary maternal outcomes were the proportions who had an instrumental or unassisted vaginal birth, and the proportion who had epidural analgesia during labour. Primary neonatal outcomes were Apgar scores, preterm birth, and admission to neonatal intensive care. We analysed all outcomes by inten tion to treat. The trial is registered with the Australian New Zealand Clinical Trials Registry, number ACTRN12609000349246. Findings: Publicly insured women were screened at the participating hospitals between Dec 8, 2008, and May 31, 2011. 1748 pregnant women were randomly assigned, 871 to caseload and 877 to standard care. The proportion of caesarean sections did not differ between the groups (183 [21%] in the caseload group vs 204 [23%] in the standard care group; odds ratio [OR] 0•88, 95% CI 0•70-1•10; p=0•26). The proportion of women who had elective caesarean sections (before onset of labour) diff ered signifi cantly between caseload and standard care (69 [8%] vs 94 [11%]; OR 0•72, 95% CI 0•52-0•99; p=0•05). Proportions of instrumental birth were similar (172 [20%] vs 171 [19%]; p=0•90), as were the proportions of unassisted vaginal births (487 [56%] vs 454 [52%]; p=0•08) and epidural use (314 [36%] vs 304 [35%]; p=0•54). Neonatal outcomes did not diff er between the groups. Total cost of care per woman was AUS$566•74 (95% 106•17-1027•30; p=0•02) less for caseload midwifery than for standard maternity care. Interpretation: Our results show that for women of any risk, caseload midwifery is safe and cost-effective.

AB - Background: Women at low risk of pregnancy complications benefit from continuity of midwifery care, but no trial evidence exists for women with identifi ed risk factors. We aimed to assess the clinical and cost outcomes of caseload midwifery care for women irrespective of risk factors. Methods: In this unblinded, randomised, controlled, parallel-group trial, pregnant women at two metropolitan teaching hospitals in Australia were randomly assigned to either caseload midwifery care or standard maternity care by a telephone-based computer randomisation service. Women aged 18 years and older were eligible if they were less than 24 weeks pregnant at the first booking visit. Those who booked with another care provider, had a multiple pregnancy, or planned to have an elective caesarean section were excluded. Women allocated to caseload care received antenatal, intrapartum, and postnatal care from a named caseload midwife (or back-up caseload midwife). Controls received standard care with rostered midwives in discrete wards or clinics. The participant and the clinician were not masked to assignment. The main primary outcome was the proportion of women who had a caesarean section. The other primary maternal outcomes were the proportions who had an instrumental or unassisted vaginal birth, and the proportion who had epidural analgesia during labour. Primary neonatal outcomes were Apgar scores, preterm birth, and admission to neonatal intensive care. We analysed all outcomes by inten tion to treat. The trial is registered with the Australian New Zealand Clinical Trials Registry, number ACTRN12609000349246. Findings: Publicly insured women were screened at the participating hospitals between Dec 8, 2008, and May 31, 2011. 1748 pregnant women were randomly assigned, 871 to caseload and 877 to standard care. The proportion of caesarean sections did not differ between the groups (183 [21%] in the caseload group vs 204 [23%] in the standard care group; odds ratio [OR] 0•88, 95% CI 0•70-1•10; p=0•26). The proportion of women who had elective caesarean sections (before onset of labour) diff ered signifi cantly between caseload and standard care (69 [8%] vs 94 [11%]; OR 0•72, 95% CI 0•52-0•99; p=0•05). Proportions of instrumental birth were similar (172 [20%] vs 171 [19%]; p=0•90), as were the proportions of unassisted vaginal births (487 [56%] vs 454 [52%]; p=0•08) and epidural use (314 [36%] vs 304 [35%]; p=0•54). Neonatal outcomes did not diff er between the groups. Total cost of care per woman was AUS$566•74 (95% 106•17-1027•30; p=0•02) less for caseload midwifery than for standard maternity care. Interpretation: Our results show that for women of any risk, caseload midwifery is safe and cost-effective.

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