Bejoy Nambiar
University College London
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Publication
Featured researches published by Bejoy Nambiar.
The Lancet | 2013
Audrey Prost; Tim Colbourn; Nadine Seward; Kishwar Azad; Arri Coomarasamy; Andrew Copas; Tanja A. J. Houweling; Edward Fottrell; Abdul Kuddus; Sonia Lewycka; Christine MacArthur; Dharma Manandhar; Joanna Morrison; Charles Mwansambo; Nirmala Nair; Bejoy Nambiar; David Osrin; Christina Pagel; Tambosi Phiri; Anni-Maria Pulkki-Brännström; Mikey Rosato; Jolene Skordis-Worrall; Naomi Saville; Neena Shah More; Bhim Shrestha; Prasanta Tripathy; Amie Wilson; Anthony Costello
BACKGROUND Maternal and neonatal mortality rates remain high in many low-income and middle-income countries. Different approaches for the improvement of birth outcomes have been used in community-based interventions, with heterogeneous effects on survival. We assessed the effects of womens groups practising participatory learning and action, compared with usual care, on birth outcomes in low-resource settings. METHODS We did a systematic review and meta-analysis of randomised controlled trials undertaken in Bangladesh, India, Malawi, and Nepal in which the effects of womens groups practising participatory learning and action were assessed to identify population-level predictors of effect on maternal mortality, neonatal mortality, and stillbirths. We also reviewed the cost-effectiveness of the womens group intervention and estimated its potential effect at scale in Countdown countries. FINDINGS Seven trials (119,428 births) met the inclusion criteria. Meta-analyses of all trials showed that exposure to womens groups was associated with a 37% reduction in maternal mortality (odds ratio 0.63, 95% CI 0.32-0.94), a 23% reduction in neonatal mortality (0.77, 0.65-0.90), and a 9% non-significant reduction in stillbirths (0.91, 0.79-1.03), with high heterogeneity for maternal (I(2)=58.8%, p=0.024) and neonatal results (I(2)=64.7%, p=0.009). In the meta-regression analyses, the proportion of pregnant women in groups was linearly associated with reduction in both maternal and neonatal mortality (p=0.026 and p=0.011, respectively). A subgroup analysis of the four studies in which at least 30% of pregnant women participated in groups showed a 55% reduction in maternal mortality (0.45, 0.17-0.73) and a 33% reduction in neonatal mortality (0.67, 0.59-0.74). The intervention was cost effective by WHO standards and could save an estimated 283,000 newborn infants and 41,100 mothers per year if implemented in rural areas of 74 Countdown countries. INTERPRETATION With the participation of at least a third of pregnant women and adequate population coverage, womens groups practising participatory learning and action are a cost-effective strategy to improve maternal and neonatal survival in low-resource settings. FUNDING Wellcome Trust, Ammalife, and National Institute for Health Research Collaboration for Leadership in Applied Health Research and Care for Birmingham and the Black Country programme.
International Health | 2013
Tim Colbourn; Bejoy Nambiar; Austin Bondo; Charles Makwenda; Eric Tsetekani; Agnes Makonda-Ridley; Martin Msukwa; Pierre Barker; Uma R. Kotagal; Cassie Williams; Ros Davies; Dale Webb; Dorothy Flatman; Sonia Lewycka; Mikey Rosato; Fannie Kachale; Charles Mwansambo; Anthony Costello
Background Maternal, perinatal and neonatal mortality remains high in low-income countries. We evaluated community and facility-based interventions to reduce deaths in three districts of Malawi. Methods We evaluated a rural participatory women’s group community intervention (CI) and a quality improvement intervention at health centres (FI) via a two-by-two factorial cluster randomized controlled trial. Consenting pregnant women were followed-up to 2 months after birth using key informants. Primary outcomes were maternal, perinatal and neonatal mortality. Clusters were health centre catchment areas assigned using stratified computer-generated randomization. Following exclusions, including non-birthing facilities, 61 clusters were analysed: control (17 clusters, 4912 births), FI (15, 5335), CI (15, 5080) and FI + CI (14, 5249). This trial was registered as International Standard Randomised Controlled Trial [ISRCTN18073903]. Outcomes for 14 576 and 20 576 births were recorded during baseline (June 2007–September 2008) and intervention (October 2008–December 2010) periods. Results For control, FI, CI and FI + CI clusters neonatal mortality rates were 34.0, 28.3, 29.9 and 27.0 neonatal deaths per 1000 live births and perinatal mortality rates were 56.2, 55.1, 48.0 and 48.4 per 1000 births, during the intervention period. Adjusting for clustering and stratification, the neonatal mortality rate was 22% lower in FI + CI than control clusters (OR = 0.78, 95% CI 0.60–1.01), and the perinatal mortality rate was 16% lower in CI clusters (OR = 0.84, 95% CI 0.72–0.97). We did not observe any intervention effects on maternal mortality. Conclusions Despite implementation problems, a combined community and facility approach using participatory women’s groups and quality improvement at health centres reduced newborn mortality in rural Malawi.
The Lancet Global Health | 2016
Mercy Kanyuka; Jameson Ndawala; Tiope Mleme; Lusungu Chisesa; Medson Makwemba; Agbessi Amouzou; Josephine Borghi; Judith Daire; Rufus Ferrabee; Elizabeth Hazel; Rebecca Heidkamp; Kenneth Hill; Melisa Martínez Álvarez; Leslie Mgalula; Spy Munthali; Bejoy Nambiar; Humphreys Nsona; Lois Park; Neff Walker; Bernadette Daelmans; Jennifer Bryce; Tim Colbourn
BACKGROUND Several years in advance of the 2015 endpoint for the Millennium Development Goals (MDGs), Malawi was already thought to be one of the few countries in sub-Saharan Africa likely to meet the MDG 4 target of reducing under-5 mortality by two-thirds between 1990 and 2015. Countdown to 2015 therefore selected the Malawi National Statistical Office to lead an in-depth country case study, aimed mainly at explaining the countrys success in improving child survival. METHODS We estimated child and neonatal mortality for the years 2000-14 using five district-representative household surveys. The study included recalculation of coverage indicators for that period, and used the Lives Saved Tool (LiST) to attribute the child lives saved in the years from 2000 to 2013 to various interventions. We documented the adoption and implementation of policies and programmes affecting the health of women and children, and developed estimates of financing. FINDINGS The estimated mortality rate in children younger than 5 years declined substantially in the study period, from 247 deaths (90% CI 234-262) per 1000 livebirths in 1990 to 71 deaths (58-83) in 2013, with an annual rate of decline of 5·4%. The most rapid mortality decline occurred in the 1-59 months age group; neonatal mortality declined more slowly (from 50 to 23 deaths per 1000 livebirths), representing an annual rate of decline of 3·3%. Nearly half of the coverage indicators have increased by more than 20 percentage points between 2000 and 2014. Results from the LiST analysis show that about 280,000 childrens lives were saved between 2000 and 2013, attributable to interventions including treatment for diarrhoea, pneumonia, and malaria (23%), insecticide-treated bednets (20%), vaccines (17%), reductions in wasting (11%) and stunting (9%), facility birth care (7%), and prevention and treatment of HIV (7%). The amount of funding allocated to the health sector has increased substantially, particularly to child health and HIV and from external sources, but remains below internationally agreed targets. Key policies to address the major causes of child mortality and deliver high-impact interventions at scale throughout Malawi began in the late 1990s and intensified in the latter half of the 2000s and into the 2010s, backed by health-sector-wide policies to improve womens and childrens health. INTERPRETATION This case study confirmed that Malawi had achieved MDG 4 for child survival by 2013. Our findings suggest that this was achieved mainly through the scale-up of interventions that are effective against the major causes of child deaths (malaria, pneumonia, and diarrhoea), programmes to reduce child undernutrition and mother-to-child transmission of HIV, and some improvements in the quality of care provided around birth. The Government of Malawi was among the first in sub-Saharan Africa to adopt evidence-based policies and implement programmes at scale to prevent unnecessary child deaths. Much remains to be done, building on this success and extending it to higher proportions of the population and targeting continued high neonatal mortality rates. FUNDING Bill & Melinda Gates Foundation, WHO, The World Bank, Government of Australia, Government of Canada, Government of Norway, Government of Sweden, Government of the UK, and UNICEF.
BMJ Open | 2013
Timothy Colbourn; Sonia Lewycka; Bejoy Nambiar; Iqbal Anwar; Ann Phoya; Chisale G Mhango
Background Millennium Development Goal 5 (MDG 5) targets a 75% reduction in maternal mortality from 1990 to 2015, yet accurate information on trends in maternal mortality and what drives them is sparse. We aimed to fill this gap for Malawi, a country in sub-Saharan Africa with high maternal mortality. Methods We reviewed the literature for population-based studies that provide estimates of the maternal mortality ratio (MMR) in Malawi, and for studies that list and justify variables potentially associated with trends in MMR. We used all population-based estimates of MMR representative of the whole of Malawi to construct a best-fit trend-line for the range of years with available data, calculated the proportion attributable to HIV and qualitatively analysed trends and evidence related to other covariates to logically assess likely candidate drivers of the observed trend in MMR. Results 14 suitable estimates of MMR were found, covering the years 1977–2010. The resulting best-fit line predicted MMR in Malawi to have increased from 317 maternal deaths/100 000 live-births in 1980 to 748 in 1990, before peaking at 971 in 1999, and falling to 846 in 2005 and 484 in 2010. Concurrent deteriorations and improvements in HIV and health system investment and provisions are the most plausible explanations for the trend. Female literacy and education, family planning and poverty reduction could play more of a role if thresholds are passed in the coming years. Conclusions The decrease in MMR in Malawi is encouraging as it appears that recent efforts to control HIV and improve the health system are bearing fruit. Sustained efforts to prevent and treat maternal complications are required if Malawi is to attain the MDG 5 target and save the lives of more of its mothers in years to come.
The Lancet Global Health | 2016
Marzia Lazzerini; Nadine Seward; Norman Lufesi; Rosina Banda; Sophie Sinyeka; Gibson Masache; Bejoy Nambiar; Charles Makwenda; Anthony Costello; Eric D. McCollum; Tim Colbourn
BACKGROUND Few studies have reported long-term data on mortality rates for children admitted to hospital with pneumonia in Africa. We examined trends in case fatality rates for all-cause clinical pneumonia and its risk factors in Malawian children between 2001 and 2012. METHODS Individual patient data for children (<5 years) with clinical pneumonia who were admitted to hospitals participating in Malawis Child Lung Health Programme between 2001 and 2012 were recorded prospectively on a standardised medical form. We analysed trends in pneumonia mortality and childrens clinical characteristics, and we estimated the association of risk factors with case fatality for children younger than 2 months, 2-11 months of age, and 12-59 months of age using separate multivariable mixed effects logistic regression models. FINDINGS Between November, 2012, and May, 2013, we retrospectively collected all available hard copies of yellow forms from 40 of 41 participating hospitals. We examined 113 154 pneumonia cases, 104 932 (92·7%) of whom had mortality data and 6903 of whom died, and calculated an overall case fatality rate of 6·6% (95% CI 6·4-6·7). The case fatality rate significantly decreased between 2001 (15·2% [13·4-17·1]) and 2012 (4·5% [4·1-4·9]; ptrend<0·0001). Univariable analyses indicated that the decrease in case fatality rate was consistent across most subgroups. In multivariable analyses, the risk factors significantly associated with increased odds of mortality were female sex, young age, very severe pneumonia, clinically suspected Pneumocystis jirovecii infection, moderate or severe underweight, severe acute malnutrition, disease duration of more than 21 days, and referral from a health centre. Increasing year between 2001 and 2012 and increasing age (in months) were associated with reduced odds of mortality. Fast breathing was associated with reduced odds of mortality in children 2-11 months of age. However, case fatality rate in 2012 remained high for children with very severe pneumonia (11·8%), severe undernutrition (15·4%), severe acute malnutrition (34·8%), and symptom duration of more than 21 days (9·0%). INTERPRETATION Pneumonia mortality and its risk factors have steadily improved in the past decade in Malawi; however, mortality remains high in specific subgroups. Improvements in hospital care may have reduced case fatality rates though a lack of sufficient data on quality of care indicators and the potential of socioeconomic and other improvements outside the hospital precludes adequate assessment of why case-fatality rates fell. Results from this study emphasise the importance of effective national systems for data collection. Further work combining this with data on trends in the incidence of pneumonia in the community are needed to estimate trends in the overall risk of mortality from pneumonia in children in Malawi. FUNDING Bill & Melinda Gates Foundation.
Cost Effectiveness and Resource Allocation | 2015
Tim Colbourn; Anni-Maria Pulkki-Brännström; Bejoy Nambiar; Sungwook Kim; Austin Bondo; Lumbani Banda; Charles Makwenda; Neha Batura; Hassan Haghparast-Bidgoli; Rachael Hunter; Anthony Costello; Gianluca Baio; Jolene Skordis-Worrall
BackgroundUnderstanding the cost-effectiveness and affordability of interventions to reduce maternal and newborn deaths is critical to persuading policymakers and donors to implement at scale. The effectiveness of community mobilisation through women’s groups and health facility quality improvement, both aiming to reduce maternal and neonatal mortality, was assessed by a cluster randomised controlled trial conducted in rural Malawi in 2008–2010. In this paper, we calculate intervention cost-effectiveness and model the affordability of the interventions at scale.MethodsBayesian methods are used to estimate the incremental cost-effectiveness of the community and facility interventions on their own (CI, FI), and together (FICI), compared to current practice in rural Malawi. Effects are estimated with Monte Carlo simulation using the combined full probability distributions of intervention effects on stillbirths, neonatal deaths and maternal deaths. Cost data was collected prospectively from a provider perspective using an ingredients approach and disaggregated at the intervention (not cluster or individual) level. Expected Incremental Benefit, Cost-effectiveness Acceptability Curves and Expected Value of Information (EVI) were calculated using a threshold of
Archives of Disease in Childhood | 2015
Edward Fottrell; David Osrin; Glyn Alcock; Kishwar Azad; Ujwala Bapat; James Beard; Austin Bondo; Tim Colbourn; Sushmita Das; Carina King; Dharma Manandhar; Sunil Raja Manandhar; Joanna Morrison; Charles Mwansambo; Nirmala Nair; Bejoy Nambiar; Melissa Neuman; Tambosi Phiri; Naomi Saville; Aman Sen; Nadine Seward; Neena Shah Moore; Bhim Shrestha; Bright Singini; Kirti Man Tumbahangphe; Anthony Costello; Audrey Prost
780 per disability-adjusted life-year (DALY) averted, the per capita gross domestic product of Malawi in 2013 international
BMJ Open | 2015
Olivia Bayley; Hilda Chapota; Esther Kainja; Tambosi Phiri; Chelmsford Gondwe; Carina King; Bejoy Nambiar; Charles Mwansambo; Peter N. Kazembe; Anthony Costello; Mikey Rosato; Tim Colbourn
.ResultsThe incremental cost-effectiveness of CI, FI, and combined FICI was
PLOS ONE | 2017
Eric D. McCollum; Bejoy Nambiar; Rashid Deula; Beatiwel Zadutsa; Austin Bondo; Carina King; James Beard; Harry Liyaya; Limangeni Mankhambo; Marzia Lazzerini; Charles Makwenda; Gibson Masache; Naor Bar-Zeev; Peter N. Kazembe; Charles Mwansambo; Norman Lufesi; Anthony Costello; Ben Armstrong; Tim Colbourn
79,
Bulletin of The World Health Organization | 2016
Eric D. McCollum; Carina King; Rashid Deula; Beatiwel Zadutsa; Limangeni Mankhambo; Bejoy Nambiar; Charles Makwenda; Gibson Masache; Norman Lufesi; Charles Mwansambo; Anthony Costello; Tim Colbourn
281, and
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Malawi-Liverpool-Wellcome Trust Clinical Research Programme
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