The women who died 2009-12 Marian Knight Maternal Lead – MBRRACE-UK Maternal Mortality in the UK 2009-12 2006-08 1952-54 90 per 100,000 maternities 11 per 100,000 maternities 10 per 100,000 maternities New activities • Confidential case reviews of selected maternal morbidity cases as well as all deaths up to one year after delivery • Annual reports for both maternal and stillborn/infant programmes • Maternal Death Enquiry Ireland (MDE Ireland) cases from 2009 onwards included with the UK confidential enquiries New work – maternal morbidity • New morbidity topic selected annually • Confidential enquiry of a sample of approximately 30-40 cases nationally • Cases can be identified through a variety of sources depending on the topic • 2014 morbidity enquiry – sepsis Call for topic proposals open to 31 December Maternal Morbidity and Mortality Annual Report Topics • Year 1 (This report): Sepsis, haemorrhage, AFE, anaesthetic, neurological, respiratory, endocrine and other indirect • Year 2 (2015): Psychiatric, thrombosis, malignancy, late and coincidental • Year 3 (2016): Pre-eclampsia and eclampsia, cardiac, early pregnancy MBRRACE-UK: METHODS Reporting of maternal deaths - UK • Data on most 2009 cases collected through CMACE • Cases from 2010 and early 2011 reported to CMACE • Cases from 2011 and 2012 reported through MPMN portal and national offices in Scotland and Northern Ireland • Cases from mid-2012 in England and Wales reported to MBRRACE-UK Additional identification • Other reports e.g. coroners, procurators fiscal, LSAMOs, media • Women with pregnancy-related conditions listed as the cause of death identified from death registration data • Birth registration data also linked with data on deaths of all women of reproductive age and any additional maternal deaths identified MBRRACE–UK Methods Confidential Enquiry Assessors • • • • • • • • • • • • 15 Obstetricians 16 Anaesthetists 3 Obstetric Physicians 4 Cardiologists 2 Neurologists 15 Midwives 8 GPs 7 Intensive care consultants 8 Pathologists 12 Psychiatrists 8 Infectious disease physicians 1 Emergency medicine consultant Sepsis Confidential Enquiry • • • • Topic Expert Group convened Key standards identified All maternal deaths included 34 morbidity cases selected – Stratified random sample of women with septic shock, identified from UKOSS severe sepsis study • Medical records obtained and local clinician reports requested • Care assessed using standard MBRRACE-UK methodology Maternal Deaths - Definitions • Direct: As a consequence of a disorder specific to pregnancy – E.g. Haemorrhage, pre-eclampsia, genital tract sepsis • Indirect: Deaths resulting from previous existing disease, or diseases that developed during pregnancy, and which were not due to direct obstetric causes but aggravated by pregnancy – E.g. Cardiac disease, other infections (sepsis) • Coincidental: Incidental/accidental deaths not due to pregnancy or aggravated by pregnancy – E.g. Road traffic accident • Late: Deaths occurring more than 42 days but less than one year after the end of pregnancy Presentation of results • Previous reports included data collected over three years • Surveillance data in this report covers four years (2009-12) • For comparison, most figures are presented either for 2009-11 alone, or for both 2009-11 and 2010-12 • Note that figures for 2009-11 and 2010-12 therefore include some of the same women (those who died in 2010 and 2011) MBRRACE-UK: SURVEILLANCE RESULTS Notifications for 2009-12 • 265 deaths notified through CMACE (complete data on only 91) • 154 deaths notified through MPMN portal • 50 deaths notified direct to MBRRACE-UK • 44 additional deaths identified through case checking directly with units • 263 additional deaths identified through linkage with national death/birth reports – mostly late deaths • Total: – 357 deaths in pregnancy or up to 42 days postpartum – 419 late deaths (42-364 days after the end of pregnancy) The women who died • 357 women died during pregnancy or up to 42 days postpartum in 2009-12 • 36 women’s deaths were classified as coincidental • Thus there were a total of 321 women who died – 253/2379014 in 2009-11 (10.63/100,000) – 243/2401624 in 2010-12 (10.12/100,000) Maternal death rate 2003-12 (Three year rolling averages) 16 14 Rate per 100 000 maternities 12 10 8 6 4 27% reduction in maternal death rate, p<0.001 2 0 2004 2005 2006 2007 2008 Mid-year of each three-year period 2009 2010 2011 Maternal death rate 2003-12 (Three year rolling averages) 16 14 Direct and Indirect maternal death rate Rate per 100 000 maternities 12 10 Indirect maternal death rate 8 6 Direct maternal death rate 4 2 0 2004 2005 2006 2007 2008 Mid-year of each three-year period 2009 2010 2011 Maternal death rate 2003-12 (Three year rolling averages) 16 14 Direct and Indirect maternal death rate Rate per 100 000 maternities 12 10 Indirect maternal death rate 8 6 Direct maternal death rate 4 2 48% reduction in direct maternal death rate, p<0.001 No significant decrease in indirect maternal deaths, p=0.73 0 2004 2005 2006 2007 2008 Mid-year of each three-year period 2009 2010 2011 Maternal death rate 1985-2011 (Three year periods) 16 Rate per 100 000 maternities 14 12 10 8 6 4 2 0 1985-1987 1988-1990 1991-1993 1994-1996 1997-1999 2000-2002 2003-2005 2006-2008 2009-2011 Triennium Direct maternal deaths 1985-2011 (Three year periods) 10 9 Rate per 100 000 maternities 8 7 6 5 4 3 2 1 0 1985-1987 1988-1990 1991-1993 1994-1996 1997-1999 2000-2002 2003-2005 2006-2008 2009-2011 Triennium Indirect maternal deaths 1985-2011 (Three year periods) 10 9 Rate per 100 000 maternities 8 7 6 5 4 3 2 1 0 1985-1987 1988-1990 1991-1993 1994-1996 1997-1999 2000-2002 2003-2005 2006-2008 2009-2011 Triennium International comparisons • MBRRACE-UK – 10.1 per 100,000 maternities (95%CI 8.9-11.5) for 2010-12 • MDE Ireland – 8.6 per 100,000 maternities (95%CI 5.2-16.6) for 2009-11 • France Confidential Enquiry – 10.3 per 100,000 live births (95%CI 9.1–11.6) for 2007–09 • Netherlands Confidential Enquiry – 5.0 per 100,000 live births (95%CI 3.5-6.9) for 2009-12 Maternal mortality in the Netherlands Rate per 100,000 live births 12 10 8 6 Direct Indirect 4 2 0 93-'95 96-'98 99-'02 03-'05 Triennium 06-'08 Source: Dutch Maternal Mortality Committee 2014 09-'12 Maternal mortality in the UK and the Netherlands 8 7 Rate per 100,000 6 5 Direct Indirect 4 3 2 1 0 Netherlands 2009-12 UK 2010-12 Sources: Dutch Maternal Mortality Committee 2014, MBRRACE-UK 2014 Maternal mortality in the UK, France and the Netherlands 8 7 Rate per 100,000 6 5 Direct Indirect 4 3 2 1 0 Netherlands 2009-12 France 2007-09 UK 2010-12 Sources: Dutch Maternal Mortality Committee 2014, MBRRACE-UK 2014, CNEMM 2013 International comparative maternal mortality ratio (MMR)* Triennium 1985-87 No. of deaths identified through death certificates 174 1988-90 MMR 95% CI Denominator number of live births 7.67 6.61-8.90 2,268,766 171 7.24 6.24-8.42 2,360,309 1991-93 150 6.48 5.52-7.60 2,315,204 1994-96 158 7.19 6.15-8.40 2,197,640 1997-99 128 6.03 5.70-7.17 2,123,614 2000-02 136 6.81 5.76-8.05 1,997,472 2003-05 149 7.05 6.00-8.27 2,114,004 2006-08 155 6.76 5.78-7.92 2,291,493 2009-11 134 5.57 4.67-6.60 2,405,251 *Deaths identified solely from death certificates, live births used as denominator Causes of maternal death Rate per 100,000 maternities 2.50 2.00 1.50 1.00 0.50 0.00 Solid bars show indirect causes, hatched bars show direct causes Causes of maternal death Causes of direct maternal death • Thrombosis and thromboembolism is now the leading cause of direct maternal death • Significant decrease in the maternal mortality rate from pre-eclampsia and eclampsia – now the lowest ever rate – 0.38 per 100,000 maternities • The mortality rate from genital tract sepsis has more than halved between 2006-8 and 2010-12; a statistically significant decrease – RR 0.44; 95% CI 0.22-0.87, p=0.016 Maternal deaths from genital tract sepsis 1.80 1.60 Rate per 100,000 maternities 1.40 1.20 1.00 0.80 0.60 0.40 0.20 0.00 1985-87 1988-90 1991-93 1994-96 1997-99 Triennium 2000-02 Rate in 2010-12: 0.50 per 100,000 (95%CI 0.26-0.87) 2003-05 2006-08 2009-11 Sepsis – all causes Influenza Causes of indirect maternal death • Major contribution from influenza and other non-genital tract sepsis deaths • Overall rate of maternal mortality from infectious causes in 2009-12 was 2.0 per 100,000 maternities (95%CI 1.6-2.6) • Cardiac disease remains the largest single cause of indirect maternal deaths; rate more than doubled since 1985-87 (RR 2.2, 95%CI 1.4-3.6) Psychiatric deaths • Rate of psychiatric deaths appears low • However, this includes only maternal deaths up to 42 days postpartum • Psychiatric causes make a significant contribution to late deaths: – 95 of 419 late maternal deaths between 200912 were due to psychiatric causes • Confidential Enquiry into psychiatric deaths will be included in the 2015 report Late deaths • Note that the numbers of late deaths reported by MBRRACE-UK are not comparable with those reported by CMACE due to different methodology • Deaths counted in CMACE 2006-8 report were only those which underwent confidential enquiry; deaths counted in MBRRACE-UK 2009-12 report are all late deaths Maternal mortality rate by age Age <20 20 – 24 25 – 29 30 – 34 35 – 39 ≥ 40 Rate per 100,000 maternities 95% CI Relative risk (RR) 95% CI 8.7 6.9 8.3 9.6 15.2 22.7 4.9-14.3 4.9-9.3 6.5-10.4 7.7-11.9 12.0-19.0 15.1-32.8 1.26 1 1.21 1.40 2.22* 3.30* 0.65-2.33 *Significantly raised compared to women aged 20-24 0. 81-1.81 0.96-2.09 1.50-3.32 1.96-5.47 Maternal mortality rate by area of residence (IMD quintile) IMD Quintiles (England only) I (Least deprived/ highest 20%) II III IV V (Most deprived/ lowest 20%) Rate per 100,000 maternities 95% CI Relative risk (RR) 95% CI 8.2 5.6 to 11.6 1 - 8.2 8.9 11.0 5.6 to 11.4 6.4 to 12.0 8.5 to 14.0 1.00 1.09 1.34 0.60 to 1.67 0.67 to 1.77 0.87 to 2.12 12.1 9.7 to 14.9 1.48* 1.00 to 2.29 *Significantly raised compared to women in least deprived areas Maternal mortality rate by ethnic group Rate per 100,000 maternities 95% CI Relative risk (RR) 95% CI White (inc. not known) 9.0 7.8 -10.4 1 Indian 20.5 11.9-32.8 2.27* 1.30-3.74 Pakistani 13.9 7.8-22.8 1.53 0.84-2.60 Bangladeshi 11.1 3.0-28.4 1.23 0.33-3.20 Other Asian 8.1 2.9-17.6 0.90 0.32-1.99 Caribbean 18.5 6.0-43.2 2.05 0.66-4.87 African 26.9 17.6-39.4 2.98* 1.90-4.51 Others/ mixed 10.2 5.6-17.1 1.13 0.61-1.94 Ethnicity (England only) *Significantly raised compared to white women Maternal mortality rate according to country of birth Woman's country of birth UK Outside UK Rate per 100,000 maternities 8.6 95% CI Relative risk (RR) 95% CI 7.5 to 9.8 1 - 15.2 12.5 to 18.3 1.77* 1.39 to 2.24 Bangladesh India Pakistan Sri Lanka Ghana Nigeria Somalia Poland 9.0 14.5 10.9 29.4 22.0 34.2 17.8 8.9 1.9 to 26.3 6.3 to 28.6 4.7 to 21.4 8.0 to 75.1 4.5 to 64.2 16.4 to 62.9 4.8 to 45.5 3.6 to 18.3 1.05 1.69 1.27 3.42 2.56 3.99* 2.07 1.03 0.21 to 3.11 0.72 to 3.39 0.54 to 2.54 0.92 to 8.89 0.52 to 7.59 1.88 to 7.48 0.56 to 5.38 0.41 to 2.17 *Significantly raised compared to women born in the UK Other characteristics of women who died Medical condition/ characteristic Body mass index (BMI) kg/m2 <18 18 – 24 25 – 29 ≥ 30 Missing Mental health problems Yes No Any pre-existing medical condition (excluding obesity) Yes No Missing Direct (n=106) Frequency (%) Indirect (n=215) Frequency (%) Total (n=321) Frequency (%) 1 (0.9) 35 (33.0) 28 (26.4) 31 (29.3) 11 (10.4) 5 (2.3) 89 (41.4) 44 (20.5) 56 (26.0) 21 (9.8) 6 (1.9) 124 (38.6) 72 (22.4) 87 (27.1) 31 (10.0) 12 (11.3) 87 (82.1) 42 (19.5) 165 (76.7) 54 (16.8) 252 (78.5) 74 (69.8) 25 (23.6) 7 (6.6) 163 (75.8) 44 (20.5) 8 (3.7) 237 (73.8) 69 (21.5) 15 (4.7) Other characteristics of women who died Medical condition/ characteristic Body mass index (BMI) kg/m2 <18 18 – 24 25 – 29 ≥ 30 Missing Mental health problems Yes No Any pre-existing medical condition (excluding obesity) Yes No Missing Direct (n=106) Frequency (%) Indirect (n=215) Frequency (%) Total (n=321) Frequency (%) 1 (0.9) 35 (33.0) 28 (26.4) 31 (29.3) 11 (10.4) 5 (2.3) 89 (41.4) 44 (20.5) 56 (26.0) 21 (9.8) 6 (1.9) 124 (38.6) 72 (22.4) 87 (27.1) 31 (10.0) 12 (11.3) 87 (82.1) 42 (19.5) 165 (76.7) 54 (16.8) 252 (78.5) 74 (69.8) 25 (23.6) 7 (6.6) 163 (75.8) 44 (20.5) 8 (3.7) 237 (73.8) 69 (21.5) 15 (4.7) Antenatal care • Only 29% of women who had antenatal care received the recommended level of care according to NICE antenatal care guidelines (booking at 10 weeks or less and no routine antenatal visits missed); • Almost two thirds received a minimum level of antenatal care (booking at less than 12 weeks and three or fewer antenatal visits missed); • 25% did not receive even this minimum level of care. The women who survived: septic shock associated with pregnancy • Between June 2011 and May 2012, 71 women were reported to UKOSS who had septic shock in association with pregnancy • 9.1 cases per 100,000 maternities (95%CI 7.111.5) • 69 women survived; the care of 34 of these women was examined in the confidential enquiry Acosta, Kurinczuk et al. PLoS Med 2014 Selected characteristics of women who survived septic shock Characteristic Age <25 25 – 34 ≥ 35 Ethnicity White European Other Body mass index (BMI) kg/m2 <18 18 – 24 25 – 29 ≥ 30 Missing Any pre-existing medical condition (excl. obesity) Yes No Total (n=69) Frequency (%) 16 (23) 33 (48) 20 (29) 44 (64) 25 (36) 1 (1) 38 (55) 18 (26) 9 (13) 3 (4) 18 (26) 51 (74) RESULTS: CONFIDENTIAL ENQUIRIES Case assessments completed Assessor type Number of reviews completed as first assessor Number of reviews completed as second assessor Obstetrician 237 52 Midwife Anaesthetist 237 237 51 30 Physician 89 10 GP Intensive care 24 110 8 - Pathologist 203 28 Psychiatrist 1 1 Infectious Disease 64 2 Emergency Medicine 17 - Local clinicians reports Professional group Obstetrics Returned N (%) (n=203) 33 (16) Midwifery 33 (16) Anaesthetics/critical care 27 (13) GP 36 (18) Emergency care 8 (*) Medical specialties 15 (*) *Not required for all deaths therefore percentage not calculated Overall assessment of care • Good care; no improvements identified • Improvements in care* identified which would have made no difference to the outcome • Improvements in care* identified which may have made a difference to the outcome *Improvements in care are interpreted to include adherence to guidelines, where these exist and have not been followed, as well as other improvements which would normally be considered part of good care, where no formal guidelines exist. Overall assessment of care Classification of care received for women who died and are included in the confidential enquiry chapters (n=203) Classification of care received Number of women (%) (n=203) Good care 58 (29) Improvements to care which would have made no difference to outcome 39 (19) Improvements to care which may have made a difference to outcome 106 (52) Narrative versus EvidenceBased Medicine—And, Not Or “Facts and figures are essential, but insufficient, to translate the data and promote the acceptance of evidence-based practices and policies…. narratives, when compared with reporting statistical evidence alone, can have uniquely persuasive effects in overcoming preconceived beliefs. Stories help the public make sense of population-based evidence. Guideline developers and regulatory scientists must recognize, adapt, and deploy narrative to explain the science of guidelines to patients and families, health care professionals, and policy makers to promote their optimal understanding, uptake, and use.” Meisel and Karlawish JAMA. 2011;306(18):2022-2023. SUMMARY Key messages - 1 • Overall there has been a statistically significant decrease in the maternal death rate between 2006-8 and 2009-12 in the UK. • This decrease is predominantly due to a decrease in direct maternal deaths. • There has been no significant change in the rate of indirect maternal death over the last 10 years, a time during which direct maternal deaths have halved. This needs action across a wide range of health services and not just maternity services. Key messages - 2 • The number of women dying from genital tract sepsis has significantly decreased since 2006-8. • Influenza was an important cause of death during this period; half of the associated deaths occurred after a vaccine became available and can therefore be considered preventable. • The importance of seasonal influenza immunisation for pregnant women cannot be over-emphasised; increasing immunisation rates in pregnancy against seasonal influenza must remain a priority.