Health
Harriet Aber’s Research Uncovers Uganda’s Hidden Crisis of Child Substance Use
In Uganda, children arrive at health facilities every day with fever, cough, injuries or routine illnesses. What health workers rarely recognise is that some of these children are already living with alcohol or other substance use disorders, conditions that complicate diagnosis, delay treatment, and quietly undermine children’s health, development, and long-term wellbeing.
This hidden reality was uncovered by Dr. Harriet Aber Odonga during her doctoral research at Makerere University School of Public Health (MakSPH). Her PhD study, titled “Substance Use among Children in Mbale, Uganda: Health System Landscape and Support Structures,” examined how Uganda’s health system detects and responds to substance use among children aged six to 17 years.
The findings revealed a problem far more widespread than many health workers and caregivers assumed. Nearly one in four children attending health facilities showed signs of alcohol or other substance use problems, with alcohol the most common substance. In the study, a child was classified as having a “probable” substance use disorder when responses to a standard screening questionnaire indicated harmful or dependent patterns of use requiring further clinical assessment.
The discovery adds urgency to an already serious public health challenge. Globally, alcohol and other substance use is responsible for one in five deaths and contributes to more than 200 disease and injury conditions, according to WHO. Across Africa, alcohol alone accounts for 6.4 per cent of all deaths and 4.7 per cent of disability-adjusted life years. In Uganda, alcohol use disorder affects roughly 7.1 per cent of the population and contributes to about 7% of all deaths, while research among young people shows that alcohol exposure often begins early in life.
Despite these risks, most policy and research attention has historically focused on adults and older adolescents. Much less is known about children who begin experimenting with alcohol and other substances earlier in their childhood, a gap Aber set out to examine by studying how Uganda’s health system identifies and responds to substance use among children.
A research question begins
Aber’s interest in the subject began unexpectedly. “I remember seeing a notice calling for PhD students to research child alcohol use,” Dr. Aber recounted. “The phrase struck me immediately. I could not believe that children were drinking alcohol. That moment sparked my curiosity, so I began reviewing the literature on the subject in Uganda. During that search, I came across a study documenting alcohol use among children as young as five years old. That finding was deeply unsettling and raised many questions for me.”
With a longstanding interest in child health, Aber saw the research as an opportunity to investigate a problem that had received little systematic attention. What began as disbelief developed into a doctoral investigation examining how Uganda’s health system identifies and responds to substance use among children. She began her doctoral studies in 2021 at MakSPH under the supervision of Dr. Juliet N. Babirye, Prof. Fred Nuwaha, and Prof. Ingunn Marie S. Engebretsen from the University of Bergen, Norway. She defended her thesis on October 25, 2025, before graduating during Makerere University’s 76th graduation ceremony on February 25, 2026.
Investigating the health system response
Aber’s study examined four key questions. It measured how common substance use disorders are among children visiting health facilities. It assessed whether health facilities are equipped to screen and manage these cases. It evaluated whether screening tools are acceptable to children, caregivers, and health workers. It also examined how families seek help when children begin using substances.
To answer these questions, the research used a mixed-methods design combining quantitative surveys and qualitative interviews. Aber collected data from 834 children attending health facilities in Mbale District, assessed 54 health facilities in the district to determine their readiness to screen and manage substance use disorders, and interviewed health workers, caregivers, and children to understand experiences of care and barriers to seeking help. Additional surveys involving 602 children and 355 caregivers examined help-seeking patterns and support structures.
Quantitative data were analysed to estimate prevalence and identify associated risk factors, while qualitative interviews provided insight into how families, communities and health workers respond when children begin using substances.
What the research found
Data collected between 2023 and 2024 across health facilities in Mbale District in Eastern Uganda showed that substance use among children was far more common than many health workers and caregivers assumed. Alcohol use disorder emerged as the most prevalent form of substance use disorder among children in the study. The analysis also showed that children were significantly more likely to use substances if they were exposed to peer or sibling use, lived in lower-income households, or experienced strained relationships with caregivers.
The research also revealed major health system gaps. Only 19 of the 54 health facilities assessed, representing 35 per cent, met the minimum readiness criteria required to screen, diagnose or manage substance use disorders. Many facilities lacked trained staff, standardised screening guidelines, and clear referral pathways for specialised care.
Aber explained that substance use often goes undetected because it is rarely the primary reason children visit health facilities. “Substance use is hidden,” she asserted, reflecting on evidence from her doctoral study. “While health workers are treating other illnesses, some children coming to these facilities are already struggling with alcohol or other substances.”
She added that early substance use can have lasting consequences for children’s development. “Risk was higher among children exposed to peer or sibling substance use, lower household income, lower caregiver education, and strained child-caregiver relationships. The public should be concerned because early substance use affects brain development, mental health, education completion, and long-term well-being.”
Families often navigate the problem alone
Her research also examined how families and communities respond when children begin using substances. She found formal help-seeking to be rare. Many caregivers relied on informal networks, including relatives, teachers, religious leaders, and local authorities. Health services were seldom the first point of support.
Meanwhile, punitive responses such as discipline or punishment were sometimes used by caregivers attempting to stop the behaviour of substance use among children, but these responses rarely addressed the broader social and family pressures influencing the vice.
One encouraging finding emerged from her study’s assessment of early detection tools. Aber evaluated the use of the CRAFFT screening tool, a short set of structured questions used by health workers to identify whether a child may be using alcohol or other substances. Children, caregivers, and health workers generally found the questions from the tool easy to understand and acceptable to use. In the study, over 85 per cent of children reported the questions were easy to answer, and nearly nine in ten caregivers were comfortable with the screening process.
These findings, however, suggest that routine early detection could be integrated into primary healthcare within the communities. “If policymakers were to act on one finding from my research, I would prioritise integrating routine, age-appropriate substance use screening into primary healthcare,” Aber argued. “With proper training and referral systems, health workers can identify early risk and support children before the problem escalates.”
Training across nutrition, public health and health systems
Aber’s approach to the problem reflects a research journey shaped by training across multiple areas of child and public health. She first studied Food Science and Technology at Kyambogo University, graduating in 2011, before specialising in Nutrition during her Master of Public Health at Makerere University, graduating in 2015, before embarking on her doctoral training in Public Health at the School, completing in 2025 to graduate at Makerere University 76th Congregation.
Before beginning her PhD, she worked on nutrition research and later coordinated studies examining climate risks, anticipatory humanitarian action and community health systems. This background shaped how she approached substance use among children, not as an isolated behavioural problem but as an issue influenced by broader health and social conditions.
“I do not see child substance use as a problem with a single cause,” she noted. “It is influenced by biological, psychological, social, and system-level factors. My nutrition training helped me appreciate how substance use intersects with broader child health concerns such as mental health, family stress, and even food insecurity.” These pressures are visible in her research site in Mbale, where environmental shocks, economic hardship, and family instability persistently shape daily life. Recurrent landslides and livelihood disruptions place strain on households, and adolescents facing stress or instability may turn to substances as a coping mechanism, she holds.
From evidence to solutions
Completing her PhD has now shifted Aber’s perspective from documenting problems to identifying solutions for social impact. “Completing my PhD shifted my perspective from simply generating evidence to actively providing solutions,” she observed. “Child health challenges such as substance use, nutrition, and climate-related risks are interconnected. As a researcher, I have become more systems-focused, and as an advocate, I feel a stronger responsibility to ensure evidence informs policies that improve children’s wellbeing.”
For Aber, that responsibility extends to the families whose experiences informed the research. Parents, teachers, and health workers often notice behavioural changes first, even when they feel unprepared to respond. Listening without judgment, recognising warning signs, and linking children to appropriate support can make a significant difference, she noted, especially in a context where formal services remain limited.
Her research ultimately sends a clear message for Uganda’s health system. Children affected by substance use are already present in communities and health facilities. Detecting the problem earlier, strengthening screening systems, and equipping frontline health workers with appropriate tools could significantly improve outcomes for vulnerable children.
Behind the research journey stood a wide network of support, including MakSPH supervisors and doctoral committee, the TREAT consortium, the MakSPH PhD forum, the Health Development Centre secretariat, study participants, research assistants, family and friends, and funding support from the Government of Uganda through the Makerere University Research and Innovations Fund (MAKRIF) and the Norwegian Research Council, all of whom she remains grateful.
Aber’s research ultimately points to a critical gap in Uganda’s health system. Children affected by substance use are already present but remain largely invisible. Without routine screening, trained health workers, and clear referral systems, opportunities for early intervention are often missed. Addressing this gap, as indicated by her study, goes beyond clinical care. It requires strengthening how the health system recognises and responds to emerging risks that affect children’s long-term health and development.
Makerere’s School of Public Health (MakSPH) is expanding faster than it can house itself. It now hosts more than 1,000 students, runs programmes across multiple countries, and anchors a large share of the University’s research output. Yet parts of its operation still spill into rented space, costing over $113,000 a year, because the infrastructure has not kept pace with its growth.
That constraint sits uneasily with the School’s economic weight. Health research accounts for more than half of Makerere University’s academic output, making it one of the University’s most productive engines. As Vice Chancellor Barnabas Nawangwe put it, “An educated population is a healthy population, and an educated and healthy population is a prosperous population.”
Beyond the university, health is not just a social outcome but a driver of economic performance. Healthier populations are more productive, more resilient, and less costly to sustain. Investments in public health, whether in prevention, systems, or infrastructure, raise an economy’s productive capacity, not just improve outcomes.
Institutions that generate public health knowledge and train professionals are not peripheral to growth; they are part of its foundation.
It is this logic that is shaping how Makerere’s School of Public Health is positioning itself. At its centre is a new, unfinished complex on the University’s main campus, intended to anchor the School’s next phase as a regional hub for research, training, and policy support. But like much of the system it supports, it is being built gradually, in a “build-as-you-go” approach constrained as much by funding realities as by design.
Construction of Phase II of the MakSPH complex is now at an advanced stage, with progress recorded across all sections of the site. As of March 2026, Phase 2B is nearing completion at 98%, while Phase 2A stands at 89%, and Phase 2C at 69%, each tracking close to or slightly ahead of planned targets. Current works are concentrated on interior finishes—including tiling, terrazzo installation, and external rendering—as well as preparations for lift installation, signaling a transition from structural works to final detailing. The project team is working toward a practical completion date of August 31, 2026, with timelines calibrated to align with broader resource flows and implementation considerations.
Six years ago, in February 2020, construction began on what will be the new home of the School of Public Health. The building, a permanent, purpose-built public health facility on Makerere’s main campus, will accommodate a growing student body, provide space for doctoral and postdoctoral fellows, and strengthen the University’s ability to respond to Africa’s most pressing public health challenges.
Professor David Serwadda, Professor Emeritus at Makerere University and Chair of the MakSPH Infrastructure Fundraising Committee, said the construction journey reflects the School’s “ambition, intent, and courage”—a bold step despite limited resources. He was speaking at a public lecture on health financing held at Makerere University on April 9, 2026.
But the ambition behind the project is not modest. “We are not building for today—we are building for the future,” said Professor David Serwadda, reflecting on a decision that shaped the entire construction effort. “We need to build for the next 100 years.”
That long view helps explain both the scale of the project and the risks taken to start it. When construction began, the School did not have the full funding. “We started with about a third of the required budget,” Serwadda said.
The approach was not without setbacks. A major grant from USAID, worth over a million dollars, was later withdrawn, midway through the construction, due to the closure of USAID. “We received what is called a ‘Dear John letter,’” he recalled. “At that moment, we felt the situation was a major blow, almost terminal for the project.”
But the project did not stop. It adjusted. “We said, let us continue, piecemeal,’” he said. “Finish the auditorium first, use it, and keep building the rest.”
“We have come a long way as the School of Public Health,” said Professor Rhoda Wanyenze, the Dean. “We are proud of that history, but we also recognize that it comes with responsibility.”
She argued that responsibility is no longer confined to Uganda. With ongoing collaborative work in more than 25 African countries currently, the Dean says this is “a responsibility to provide leadership in public health not only in Uganda but across the continent.”
The scale of that growth has been visible from what was once a small training unit in the Faculty of Medicine in the 1950s, which has expanded into 12 academic programmes and more than 1,000 students.
“When I came back for my public health training, we were about 40 students,” she said. “Now, we have more than 1,000.” “Public health is growing and evolving,” Wanyenze said. “And we are doing our best to develop the skills needed for this changing landscape.”
That includes new areas such as health informatics and data science, driven by the digitisation of health systems and the growing role of data in decision-making and AI. The School is already coordinating regional platforms on digital health, linking multiple countries in shared learning and practice.
But this growth has outpaced the physical systems needed to sustain it. For the University leadership, the implications extend beyond infrastructure.
“One of the most effective ways to invest in health in Uganda is to invest properly in Makerere University,” said Vice Chancellor Barnabas Nawangwe. “We must recognize Makerere as a research-led university with a special national role—not fund it like any other institution or department. Makerere is one of the government’s greatest assets. Invest in her, and the returns will exceed expectations.”
Professor Nawangwe hailed Dr. Ramathan Ggoobi, the Permanent Secretary to the Treasury, who delivered a keynote on investing in health for Uganda’s future in view of Vision 2040. “I wish to thank Dr. Ramathan Ggoobi and his team for their personal intervention in allocating resources in next year’s budget to complete the new School of Public Health building. That support is deeply appreciated,” he said.
Uganda’s progress in health outcomes is evident, but uneven. Life expectancy has risen significantly from about 50 years in 2000 to roughly 68.8 years in 2024, according to the Permanent Secretary to the Treasury, Ramathan Ggoobi. Yet the gains sit alongside persistent financial strain on households. About 4% of Ugandans still spend more than a quarter of their consumption on healthcare, pushing many into poverty as a result of illness.
For Ggoobi, this points to a structural gap that recurrent government spending alone cannot close. “We must mobilise long-term domestic capital without adding fiscal risk,” he argued, pointing to the need for more sustainable financing mechanisms. Central to this is the gradual design and rollout of a national health insurance scheme. Evidence from countries such as Rwanda, Kenya, and Ghana suggests that well-structured contributory models can expand coverage while reducing catastrophic out-of-pocket spending.
“My Ministry and the School of Public Health must be partners. … Evidence framed in fiscal terms drives policy,” said Ggoobi, stressing the need for locally grounded solutions. “What works in Ghana might not work here. We need a model that fits Uganda.”
Uganda’s current macroeconomic conditions, relatively low inflation, currency stability, and expanding private credit may provide a window to move in that direction.
Uganda’s health system is entering a new phase—one where the biggest challenge is no longer building it, but sustaining it. External funding is tightening. Domestic resources are under pressure. Demand for care is rising faster than both.
In this new reality, health is no longer just a social priority but a financing problem and a test of economic strategy.
For years, the system expanded on government investment, backed by strong external support. Infrastructure grew. Services followed. But that model is now under strain. Expectations are rising. Citizens want better care, closer to where they live, and without the financial shock that so often comes with illness.
Uganda is already investing in health. The real question is whether that investment is sustainable and whether it is delivering value.
It was against this backdrop that policymakers, academics, and practitioners gathered at Makerere University on April 9 for a public lecture and high-level dialogue on health financing. At the centre of the discussion was a keynote by Dr. Ramathan Ggoobi, the Permanent Secretary to the Treasury under the theme “Investing in Health for Uganda’s Future: Delivering Vision 2040 through Smart and Sustainable Health Financing.”
The event was organised by Makerere University School of Public Health (MakSPH) in collaboration with the Ministry of Health and the Ministry of Finance, Planning, and Economic Development.
Dr. Ggoobi does not think about health the way most people in government do. He is not persuaded by the language of welfare. When he speaks about health, he reaches for the language of growth, productivity, and national wealth. In his view, the sector is not a cost centre. It is an economic engine.
“Health is not merely a social sector issue. It is an economic transformation issue, a productivity issue, and a national competitiveness issue,” he said, arguing that no country has achieved sustained growth without investing in human capital. Globally, human capital accounts for nearly 70% of national wealth. The World Health Organization (2021) estimates that every dollar invested in health can return four to nine dollars in productivity gains.
“Investment in health is not charity. It is growth finance. So, my first message is to treat health spending as an investment, not as consumption. Every shilling must buy measurable economic and social returns,” he emphases.
His views reveal a shift in how Uganda’s Treasury thinks about health financing. Spending must justify itself. Investments must deliver returns. And inefficiency is no longer just a technical issue but a fiscal problem.
Ggoobi’s worldview is shaped by the idea that Uganda’s long-term growth ambitions under Vision 2040, which is 13 years away, to achieve what he describes as a tenfold expansion to a $500 billion economy, will be decided not just by infrastructure or industry but by the quality of its human capital.
Globally, he notes, human capital accounts for the bulk of national wealth. Health, therefore, is not peripheral to development. It is central to it.
If health is an investment, then it must generate returns. If it does not, then something in the system is not working. “Every shilling must buy measurable economic and social returns,” he said.
This is where the optimism gives way to unease. Countries that have achieved and sustained middle-income status did so through deliberate, sustained, evidence-driven investments in human capital.
Uganda is working within tight fiscal limits. The national budget for 2025/26 stands at Shs 72.38 trillion, with about Shs 5.87 trillion going to health.
Government spending on health has increased over time, rising from about Shs 2.8 trillion a few years ago to Shs 4.4 trillion today. But even with this growth, spending per person is still low, around $50 a year, less than half of what is often needed to provide basic health services.
Not all the money is used efficiently. Global estimates suggest that weak systems, poor coordination, and procurement challenges can cause up to a third of health spending to be lost.
According to Dr. Ggoobi, Uganda has made notable progress in strengthening its health system, driven by sustained public investment. Life expectancy has risen from about 50 years in 2000 to approximately 68.8 years in 2024, an increase of over 18 years. Access to services has also improved significantly, with about 91 percent of Ugandans now living within five kilometres of a health facility, while income poverty has declined from 24.5 percent in 2010 to 16 percent.
On the service delivery side, the government has introduced the malaria vaccine for children under five and rolled out electronic medical records across national and regional referral hospitals. Strategic investments have also been made, including 16 high-capacity oxygen plants, three regional blood banks, CT scan equipment in 14 of 16 regional referral hospitals, and 20 digital X-ray machines in general hospitals, with remaining gaps expected to be closed in the next budget. Together, he noted, these efforts demonstrate that sustained investment in health is yielding tangible results.
Beneath that progress, Dr. Ggoobi sees a health financing structure that is fundamentally unstable, noting that external partners still finance as much as 40–45 percent of health expenditure. Government contributes about 22 percent, household’s 31 percent, and insurance remains marginal at less than five percent. This balance, Ggoobi argues, is dangerous. It leaves the system exposed to shocks from outside while pushing risk onto those least able to bear it.
But the issue that troubles him most is government inefficiency. His priorities are to increase and protect domestic health financing, mobilise long-term capital, and improve efficiency.
“We are wasteful even with the little we have. Procurement is a major problem—many fights in government are not about mandate but about procurement. That is why we are moving all entities onto an electronic procurement system to improve transparency, reduce leakage, and ensure accountability,” said Dr. Ggoobi.
The government has enrolled 38 entities on the electronic procurement system. Full adoption is expected by mid-2026.
If you have good audits and we implement their recommendations, then we can expect positive outcomes. Number two is e-government, reducing human contact where it is not necessary. Unless you’re a doctor, you have to examine someone. Why do you have to sit in a hotel to discuss procurement? Humans must get out of discussing procurement. That’s why we are building the eGP and reviewing the procurement law. We are going back to the cabinet; we are going to remove human beings who are not necessary in the chain of procurement,” said Ggoobi.
Across the discussion, one issue drew near-unanimous agreement that prevention remains underfunded.
The Ministry of Health’s position, delivered through John Kauta, the Commissioner in charge of Health Information, Statistics, Monitoring, and Evaluation, is unequivocal that “the cheapest disease to treat is the one we prevent.”
Yet Uganda still spends more on treating illness than preventing it. Freddie Ssengooba, a Professor of Health Economics and Health Systems Management, MakSPH, highlighted malaria as a case study, both costly and preventable, while others pointed to rising non-communicable diseases driven by lifestyle factors.
This imbalance has fiscal consequences. Preventable diseases generate recurrent costs, crowding out other investments and reinforcing the cycle of inefficiency.
Mak Chancellor Hon. Dr. Crispus Kiyonga pushed the debate toward geography and access, citing that while Uganda’s health system was originally designed to follow administrative structures, the ambition to reach every village was never fully realised.
“We must plan based on what we can sustainably afford. We cannot import another country’s system. But where shall we save the majority of our people? It is in the villages. That is where children miss school due to illness. Where young girls drop out due to a lack of basic support, like pads. So, we must choose: given limited resources, what system gives the greatest impact? When the Minister of Health asks for a CT scan—something people travel to Nairobi for—that is important. But in the village, a child needs an antimalarial. The choice is between a CT scan and basic treatment. These are tough decisions,” says Dr. Kiyonga.
While the country is “highly indebted” and resources are limited, the level of care that Uganda can realistically provide to its citizens should borrow from China’s early pragmatic reforms of universal access first and quality later, according to the Chancellor.
“You cannot deliver health from a distance,” he said, arguing for a renewed focus on community-level access.
The Chancellor also strongly supported a shift from tertiary care to primary care. From Mulago National Referral and reducing its congestion to the village by investing in lower health facilities.
He urged the government ministries of Finance and Health to strongly collaborate with academic institutions to improve their work. “This dialogue should not be a one-off. It must be continuous. Makerere must engage the government with well-costed, risk-weighted proposals. We should build structured collaboration between universities and government so that research informs policy, and we reduce reliance on expensive foreign consultants. There is valuable research here,” said Dr. Kiyonga.
Taken together, the dialogue revealed a country’s health system in transition, from scarcity to expansion but not yet to performance.
As Ms. Jane Kyarisiima Mwesiga, Deputy Head of Public Service (Service Delivery), Office of the Prime Minister, framed it, the next phase must move “from expansion to performance, from inputs to outcomes, from financing to public value.”
But the path forward remains contested. Should Uganda prioritise insurance or direct public provision? Prevention or specialised care? Infrastructure or functionality?
The answers lie not in choosing but in sequencing, something Uganda has historically struggled to do.
Dr. Ian Clarke, a Physician, philanthropist, entrepreneur, and Chairman of Clarke Group Companies, speaking while representing the Private Sector during the dialogue, spoke emotionally on national health insurance, whose discussion has been ongoing for close to 20 years, but with minimal progress.
“We have had studies and proposals, but many were rightly rejected because they were not practical. You cannot design a National Health Insurance scheme that looks like private insurance. There is simply not enough money in Uganda—or anywhere—to sustain that. We still think in silos: public sector and private sector. Then we ask, how do we support the private sector? There are many ways—but as has been emphasized, we must focus on prevention and equity, especially in rural areas.”
For Ssengooba, while insurance is important and long-term, its implementation needs to be phased. He called for more investments in the health sector as the first line of insurance for citizens. He also called on the government to partner with institutions such as the National Social Security Fund (NSSF), which already have systems, capacity, and reach in place to support health investments. “If we leverage institutions like NSSF—for collection, for pooling resources—we can make progress. During COVID, they demonstrated that they can support national priorities. So, we should think about how to leverage what already exists,” he says.
Stephen Omojong of the National Social Security Fund highlighted an untapped opportunity. The Fund currently manages about Shs 30 trillion in assets, with millions of contributors.
This pool, he argued, could support health financing either through insurance-linked products or long-term investment vehicles. His example of a voluntary savings scheme now has 68,000 participants and Shs. 114 billion mobilised in a year, suggesting that behavioural barriers may be less rigid than often assumed.
Makerere University Vice Chancellor, Professor Barnabas Nawangwe, framed the dialogue as more than an academic exercise, describing it as a call to action. He urged the government to tap into the University’s research capacity to inform strategic investments, noting that “health research constitutes more than 50% of all research at Makerere University,” with institutions like the School of Public Health and the Infectious Diseases Institute playing a central role.
He referred to their national impact—from supporting over 20% of Uganda’s HIV patients to operating in more than 90 districts—and emphasised that Makerere brings in over one trillion shillings annually in research income. “When you fund Makerere University,” he said, “you should understand that we are not a net consumer—we are a net producer for the country.”
Taken together, the dialogue revealed a system in transition from expansion to performance, from spending to results. Uganda is no longer short of ideas, nor entirely short of resources. The real test is execution.
Whether the country can turn health spending into measurable outcomes will determine not just the future of its health system but the credibility of its economic ambitions.
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