Medical education and population health-A framework in the design of a new undergraduate program.

Health sciences curricular planners are challenged to add new content to established education programs. There is increasing pressure for content in public health, health systems, global health, and planetary health. These important areas often compete for curricular time. What is needed is a convergence model that builds a common framework within which students can integrate areas and better align this knowledge to the individual client or patient who they have responsibility to support. A population health framework is proposed for health sciences education programs that supports a common conceptual understanding of population health. The framework links five thematic areas that have influence on health and wellbeing and a sixth element that defines the range of methodologies essential to understanding health and wellbeing, from the individual to the population. The five areas providing convergence are: (1) the biopsychosocial development of the individual, (2) the socioeconomic factors that influence health and wellbeing, (3) the physical natural and built environment including climate, (4) the continuum of public health and health care systems, and (5) the nation state and global relationships. Using this framework, students are encouraged to think and understand individual health and wellbeing in context to the population and to utilize the appropriate methodological tools to explore these relationships. Planning for a new undergraduate medicine program illustrates the curricular elements that will be used to support student learning with foundation knowledge applied and tracked throughout the program. The proposed framework has application across health sciences disciplines and serves to build a common understanding that supports cross professional communication and collaboration.

Vitamin D for Growth and Rickets in Stunted Children: A Randomized Trial.

BACKGROUND AND OBJECTIVES: Vitamin D is essential for healthy development of bones, but little is known about the effects of supplementation in young stunted children. Our objective was to assess the effect of vitamin D supplementation on risk of rickets and linear growth among Afghan children. METHODS: In this double-blind, placebo-controlled trial, 3046 children ages 1 to 11 months from inner-city Kabul were randomly assigned to receive oral vitamin D3 (100 000 IU) or placebo every 3 months for 18 months. Rickets Severity Score was calculated by using wrist and knee radiographs for 631 randomly selected infants at 18 months, and rickets was defined as a score >1.5. Weight and length were measured at baseline and 18 months by using standard techniques, and z scores were calculated. RESULTS: Mean (95% confidence interval [CI]) serum 25-hydroxyvitamin D (seasonally corrected) and dietary calcium intake were insufficient at 37 (35-39) nmol/L and 372 (327-418) mg/day, respectively. Prevalence of rickets was 5.5% (placebo) and 5.3% (vitamin D): odds ratio 0.96 (95% CI: 0.48 to 1.92); P = .9. The mean difference in height-for-age z score was 0.05 (95% CI: -0.05 to 0.15), P = .3, although the effect of vitamin D was greater for those consuming >300 mg/day of dietary calcium (0.14 [95% CI: 0 to 0.29]; P = .05). There were no between-group differences in weight-for-age or weight-for-height z scores. CONCLUSIONS: Except in those with higher calcium intake, vitamin D supplementation had no effect on rickets or growth.

Using misoprostol to treat postpartum hemorrhage in home deliveries attended by traditional birth attendants.

OBJECTIVE: To explore the clinical and programmatic feasibility of using 800 µg of sublingual misoprostol to prevent and treat postpartum hemorrhage (PPH) during home delivery. METHODS: The present double-blind randomized controlled trial included women who underwent home deliveries in Chitral district, Khyber Pakhtunkhwa province, Pakistan, after presenting at healthcare facilities during the third trimester of pregnancy between May 28, 2012, and November 27, 2014. Participants were randomized in a 1:1 ratio to receive either 800 µg of misoprostol or placebo sublingually if PPH was diagnosed, having previously received a prophylactic oral dose of 600 µg misoprostol. The primary outcome, hemoglobin decrease of 20 g/L or greater from pre- to post-delivery assessment, was compared on a modified intention-to-treat basis. RESULTS: There were 49 patients allocated to receive misoprostol and 38 allocated to receive placebo; the incidence of a 20 g/L decrease in hemoglobin was similar between the groups (20/43 [47%] vs 19/33 [58%], respectively; P=0.335). CONCLUSION: There was no significant difference in clinical outcomes between the two trial arms. ClinicalTrials.gov:NCT01485562.

Population Health Science: A Core Element of Health Science Education in Sub-Saharan Africa.

Sub-Saharan Africa suffers an inordinate burden of disease and does not have the numbers of suitably trained health care workers to address this challenge. New concepts in health sciences education are needed to offer alternatives to current training approaches.A perspective of integrated training in population health for undergraduate medical and nursing education is advanced, rather than continuing to take separate approaches for clinical and public health education. Population health science educates students in the social and environmental origins of disease, thus complementing disease-specific training and providing opportunities for learners to take the perspective of the community as a critical part of their education.Many of the recent initiatives in health science education in sub-Saharan Africa are reviewed, and two case studies of innovative change in undergraduate medical education are presented that begin to incorporate such population health thinking. The focus is on East Africa, one of the most rapidly growing economies in sub-Saharan Africa where opportunities for change in health science education are opening. The authors conclude that a focus on population health is a timely and effective way for enhancing training of health care professionals to reduce the burden of disease in sub-Saharan Africa.

Prevention of Congenital Disorders and Care of Affected Children: A Consensus Statement.

As the Sustainable Development Goals are adopted by United Nations member states, children with congenital disorders remain left behind in policies, programs, research, and funding. Although this finding was recognized by the creation and endorsement of the 63rd World Health Assembly Resolution in 2010 calling on United Nations member states to strengthen prevention of congenital disorders and the improvement of care of those affected, there has been little to no action since then. The Sustainable Development Goals call for the global health and development community to focus first and foremost on the most vulnerable and those left behind in the Millennium Development Goal era. To maximize the opportunity for every woman and couple to have a healthy child and to reduce the mortality and severe disability associated with potentially avoidable congenital disorders and their consequences for the children affected, their families and communities, and national health care systems, we propose priority measures that should be taken urgently to address this issue.

Vitamin D3supplementation and childhood diarrhea: a randomized controlled trial.

OBJECTIVE: To investigate the effect of vitamin D3 supplementation on the incidence and risk for first and recurrent diarrheal illnesses among children in Kabul, Afghanistan. METHODS: This double-blind placebo-controlled trial randomized 3046 high-risk 1- to 11-month-old infants to receive 6 quarterly doses of oral vitamin D3 (cholecalciferol 100000 IU) or placebo in inner city Kabul. Data on diarrheal episodes (≥ 3 loose/liquid stools in 24 hours) was gathered through active and passive surveillance over 18 months of follow-up. Time to first diarrheal illness was analyzed by using Kaplan-Meier plots. Incidence rates and hazard ratios (HRs) were calculated by using recurrent event Poisson regression models. RESULTS: No significant difference existed in survival time to first diarrheal illness (log rank P = .55). The incidences of diarrheal episodes were 3.43 (95% confidence interval [CI], 3.28-3.59) and 3.59 per child-year (95% CI, 3.44-3.76) in the placebo and intervention arms, respectively. Vitamin D3 supplementation was found to have no effect on the risk for recurrent diarrheal disease in either intention-to-treat (HR, 1.05; 95% CI, 0.98-1.17; P = .15) or per protocol (HR, 1.05; 95% CI, 0.98-1.12; P = .14) analyses. The lack of preventive benefit remained when the randomized population was stratified by age groups, nutritional status, and seasons. CONCLUSIONS: Quarterly supplementation with vitamin D3 conferred no reduction on time to first illness or on the risk for recurrent diarrheal disease in this study. Similar supplementation to comparable populations is not recommended. Additional research in alternative settings may be helpful in elucidating the role of vitamin D3 supplementation for prevention of diarrheal diseases.

Effect on the incidence of pneumonia of vitamin D supplementation by quarterly bolus dose to infants in Kabul: a randomised controlled superiority trial.

BACKGROUND: Vitamin D has a role in regulating immune function, and its deficiency is a suggested risk factor for childhood pneumonia. Our aim was to assess whether oral supplementation of vitamin D(3) (cholecalciferol) will reduce the incidence and severity of pneumonia in a high-risk infant population. METHODS: We did a randomised placebo-controlled trial to compare oral 100,000 IU (2·5 mg) vitamin D(3) with placebo given to children aged 1-11 months in Kabul, Afghanistan. Randomisation was by use of a computer-generated list. Vitamin D or placebo was given by fieldworkers once every 3 months for 18 months. Children presenting at the study hospital with signs of pneumonia had their diagnosis confirmed radiographically. Our primary outcome was the first or only episode of radiologically confirmed pneumonia. Our analysis was by intention to treat. This study is registered with ClinicalTrials.gov, number NCT00548379. FINDINGS: 1524 children were assigned to receive vitamin D(3) and 1522 placebo. There was no significant difference between the incidence of first or only pneumonia between the vitamin D (0·145 per child per year, 95% CI 0·129-0·164) and the placebo group (0.137, 0·121-0·155); the incidence rate ratio was 1·06 (95% CI 0·89-1·27). From 652 children during five separate periods of testing serum calcifediol, only one child in each of two testing periods had results greater than 375 nmol/L in the intervention group--a toxic level. INTERPRETATIONS: Quarterly bolus doses of oral vitamin D(3) supplementation to infants are not an effective intervention to reduce the incidence of pneumonia in infants in this setting. FUNDING: Wellcome Trust and British Council.

Effects of vitamin D supplementation to children diagnosed with pneumonia in Kabul: a randomised controlled trial.

OBJECTIVES: To determine whether (i) supplementation of oral 100,000 iu of vitamin D(3) (cholecalciferol) along with antibiotics will reduce the duration of illness in children with pneumonia; (ii) supplementation will reduce the risk of repeat episodes. METHODS: Double-blind individually randomised placebo-controlled trial in an inner-city hospital in Kabul, of 453 children aged 1-36 months, diagnosed with non-severe or severe pneumonia at the outpatient clinic. Children with rickets, other concurrent severe diseases, very severe pneumonia or wheeze, were excluded. Children were given vitamin D(3) or placebo drops additional to routine pneumonia treatment. RESULTS: Two hundred and twenty-four children received vitamin D(3;) and 229 received placebo. There was no significant difference in the mean number of days to recovery between the vitamin D(3) (4.74 days; SD 2.22) and placebo arms (4.98 days; SD 2.89; P = 0.17). The risk of a repeat episode of pneumonia within 90 days of supplementation was lower in the intervention (92/204; 45%) than the placebo group [122/211; (58%; relative risk 0.78; 95% CI 0.64, 0.94; P = 0.01]. Children in the vitamin D(3) group survived longer without experiencing a repeat episode (72 days vs. 59 days; HR 0.71; 95% CI 0.53-0.95; P = 0.02). CONCLUSION: A single high-dose oral vitamin D(3) supplementation to young children along with antibiotic treatment for pneumonia could reduce the occurrence of repeat episodes of pneumonia.

Management of post-partum hemorrhage in low-income countries.

The provision of safe and effective delivery care for all women in poor countries remains elusive, resulting in a continuing burden of mortality in general and mortality from post-partum haemorrhage in particular. Deployment of a functional health system and effective linkage of the health system to communities are the necessary prerequisites for the provision of the life-saving technical interventions that will make a difference in individual cases. Sadly, two factors militate against progress: the mantra that 'we know what works' (resulting in some serious gaps in evidence for best practice in resource-poor settings) and a lack of large-scale investment in maternity services to counteract the degradation of infrastructure and depletion of human resources evident in many countries.

Misoprostol in addition to routine treatment of postpartum hemorrhage: a hospital-based randomized-controlled trial in Karachi, Pakistan.

BACKGROUND: Postpartum hemorrhage (PPH) remains a major killer of women worldwide. Standard uterotonic treatments used to control postpartum bleeding do not always work and are not always available. Misoprostol's potential as a treatment option for PPH is increasingly known, but its use remains ad hoc and available evidence does not support the safety or efficacy of one particular regimen. This study aimed to determine the adjunct benefit of misoprostol when combined with standard oxytocics for PPH treatment. METHODS: A randomized controlled trial was conducted in four Karachi hospitals from December 2005 - April 2007 to assess the benefit of a 600 mcg dose of misoprostol given sublingually in addition to standard oxytocics for postpartum hemorrhage treatment. Consenting women had their blood loss measured after normal vaginal delivery and were enrolled in the study after losing more than 500 ml of blood. Women were randomly assigned to receive either 600 mcg sublingual misoprostol or matching placebo in addition to standard PPH treatment with injectable oxytocics. Both women and providers were blinded to the treatment assignment. Blood loss was collected until active bleeding stopped and for a minimum of one hour after PPH diagnosis. Total blood loss, hemoglobin measures, and treatment outcomes were recorded for all participants. RESULTS: Due to a much lower rate of PPH than expected (1.2%), only sixty-one patients were diagnosed and treated for their PPH in this study, and we were therefore unable to measure statistical significance in any of the primary endpoints. The addition of 600 mcg sublingual misoprostol to standard PPH treatments does, however, suggest a trend in reduced postpartum blood loss, a smaller drop in postpartum hemoglobin, and need for fewer additional interventions. Women who bled less overall had a significantly smaller drop in hemoglobin and received fewer additional interventions. There were no hysterectomies or maternal deaths among study participants. The rate of transient shivering and fever was significantly higher among women receiving misoprostol CONCLUSION: A 600 mcg dose of misoprostol given sublingually shows promise as an adjunct treatment for PPH and its use should continue to be explored for its life-saving potential in the care of women experiencing PPH. TRIAL REGISTRATION: Clinical trials.gov, Registry No. NCT00116480.

The use of audit to identify maternal mortality in different settings: is it just a difference between the rich and the poor?

OBJECTIVE: To illustrate how maternal mortality audit identifies different causes of and contributing factors to maternal deaths in different settings in low- and high-income countries and how this can lead to local solutions in reducing maternal deaths. DESIGN: Descriptive study of maternal mortality from different settings and review of data on the history of reducing maternal mortality in what are now high-income countries. SETTINGS: Kalabo district in Zambia, Farafenni division in The Gambia, Onandjokwe district in Namibia, and the Netherlands. POPULATION: Population of rural areas in Zambia and The Gambia, peri-urban population in Namibia and nationwide data from The Netherlands. METHODS: Data from facility-based maternal mortality audits from three African hospitals and data from the latest confidential enquiry in The Netherlands. MAIN OUTCOME MEASURES: Maternal mortality ratio (MMR), causes (direct and indirect) and characteristics. RESULTS: MMR ranged from 10 per 100,000 (the Netherlands) to 1540 per 100,000 (The Gambia). Differences in causes of deaths were characterized by HIV/AIDS in Namibia, sepsis and HIV/AIDS in Zambia, (pre-)eclampsia in the Netherlands and obstructed labour in The Gambia. CONCLUSION: Differences in maternal mortality are more than just differences between the rich and poor. Acknowledging the magnitude of maternal mortality and harnessing a strong political will to tackle the issues are important factors. However, there is no single, general solution to reduce maternal mortality, and identification of problems needs to be promoted through audit, both national and local.

Traditional birth attendants in rural Gambia: beyond health to social cohesion.

Studies of traditional birth attendants over-emphasise the health dimension. Based on ethnographic fieldwork (utilising participant observation, individual interviews, group discussions, participatory rapid appraisal, and literature review) in The Gambia, this paper discusses the multiplicity of the role(s) of TBAs in their communities. As general healthcare providers, 'mothers of the village', gurus of religious and socio-cultural rites, repositories of society's secrets, economic survivors, village leaders and elders, TBAs contribute to the 'gum that holds society together'. They actively engage in the political, economic, cultural, religious, gender, health and wellbeing of their societies. TBAs are important for social cohesion and welfare; not mere health practitioners. Reflections about TBAs open a window into understanding the wider rural Gambian society.

The use of audit to identify maternal mortality in different settings: is it just a difference between the rich and the poor?

OBJECTIVE: To illustrate how maternal mortality audit identifies different causes of and contributing factors to maternal deaths in different settings in low- and high-income countries and how this can lead to local solutions in reducing maternal deaths. DESIGN: Descriptive study of maternal mortality from different settings and review of data on the history of reducing maternal mortality in what are now high-income countries. SETTINGS: Kalabo district in Zambia, Farafenni division in The Gambia, Onandjokwe district in Namibia, and the Netherlands. POPULATION: Population of rural areas in Zambia and The Gambia, peri-urban population in Namibia and nationwide data from the Netherlands. METHODS: Data from facility-based maternal mortality audits from three African hospitals and data from the latest confidential enquiry in the Netherlands. MAIN OUTCOME MEASURES: Maternal mortality ratio (MMR), causes (direct and indirect) and characteristics. RESULTS: MMR ranged from 10 per 100,000 (the Netherlands) to 1,540 per 100,000 (The Gambia). Differences in causes of deaths were characterized by HIV/AIDS in Namibia, sepsis and HIV/AIDS in Zambia, (pre-)eclampsia in The Netherlands and obstructed labour in The Gambia. CONCLUSION: Differences in maternal mortality are more than just differences between the rich and poor. Acknowledging the magnitude of maternal mortality and harnessing a strong political will to tackle the issues are important factors. However, there is no single, general solution to reduce maternal mortality, and identification of problems needs to be promoted through audit, both national and local.

The use of audit to identify maternal mortality in different settings: is it just a difference between the rich and the poor?

OBJECTIVE: To illustrate how maternal mortality audit identifies different causes of and contributing factors to maternal deaths in different settings in low- and high-income countries and how this can lead to local solutions in reducing maternal deaths. DESIGN: Descriptive study of maternal mortality from different settings and review of data on the history of reducing maternal mortality in what are now high-income countries. SETTINGS: Kalabo district in Zambia, Farafenni division in The Gambia, Onandjokwe district in Namibia, and The Netherlands. POPULATION: Population of rural areas in Zambia and The Gambia, peri-urban population in Namibia and nationwide data from The Netherlands. METHODS: Data from facility-based maternal mortality audits from three African hospitals and data from the latest confidential enquiry in The Netherlands. MAIN OUTCOME MEASURES: Maternal mortality ratio (MMR), causes (direct and indirect) and characteristics. RESULTS: MMR ranged from 10 per 100,000 (The Netherlands) to 1,540 per 100,000 (The Gambia). Differences in causes of deaths were characterized by HIV/AIDS in Namibia, sepsis and HIV/AIDS in Zambia, (pre-)eclampsia in The Netherlands and obstructed labour in The Gambia. CONCLUSION: Differences in maternal mortality are more than just differences between the rich and poor. Acknowledging the magnitude of maternal mortality and harnessing a strong political will to tackle the issues are important factors. However, there is no single, general solution to reduce maternal mortality, and identification of problems needs to be promoted through audit, both national and local.

Long-term impact of malaria chemoprophylaxis on cognitive abilities and educational attainment: follow-up of a controlled trial.

OBJECTIVES: We investigated the long-term impact of early childhood malaria prophylaxis on cognitive and educational outcomes. DESIGN: This was a household-based cluster-controlled intervention trial. SETTING: The study was conducted in 15 villages situated between 32 km to the east and 22 km to the west of the town of Farafenni, the Gambia, on the north bank of the River Gambia. PARTICIPANTS: A total of 1,190 children aged 3-59 mo took part in the trial. We traced 579 trial participants (291 in the prophylaxis group and 288 in the placebo group) in 2001, when their median age was 17 y 1 mo (range 14 y 9 mo to 19 y 6 mo). INTERVENTIONS: Participants received malaria chemoprophylaxis (dapsone/pyrimethamine) or placebo for between one and three malaria transmission seasons from 1985 to 1987 during the controlled trial. At the end of the trial, prophylaxis was provided for all children under 5 y of age living in the study villages. OUTCOME MEASURES: The outcome measures were cognitive abilities, school enrolment, and educational attainment (highest grade reached at school). RESULTS: There was no significant overall intervention effect on cognitive abilities, but there was a significant interaction between intervention group and the duration of post-trial prophylaxis (p = 0.034), with cognitive ability somewhat higher in the intervention group among children who received no post-trial prophylaxis (treatment effect = 0.2 standard deviations [SD], 95% confidence interval [CI] -0.03 to 0.5) and among children who received less than 1 y of post-trial prophylaxis (treatment effect = 0.4 SD, 95% CI 0.1 to 0.8). The intervention group had higher educational attainment by 0.52 grades (95% CI = -0.041 to 1.089; p = 0.069). School enrolment was similar in the two groups. CONCLUSIONS: The results are suggestive of a long-term effect of malaria prophylaxis on cognitive function and educational attainment, but confirmatory studies are needed.