Introduction
Acute febrile illnesses of malaria, acute respiratory illness and diarrhoea account for more than half of deaths among children aged 1–59 months globally.1 Majority of fever cases in low-income countries (LICs) such as Uganda seek care from private drug shops,2 3 which have good reach in communities. Compared with government health facilities, drug shops are more accessible in terms of convenience, cost and time spent on care-seeking, and they have more reliable stocks of medicines and better social relations with their clients.4–6 Clients are aware that they provide income to drug sellers and hence are able to exert agency in the care-seeking process.7 In contrast to encounters with government health workers, clients are active customers rather than passive patients in an interaction with health providers that is friendly, and in which their opinions are respected.5 8 9 However, drug shops operate in a largely unregulated retail health market where infringements of medicine regulations are commonplace.9 10 They fill a void created by the absence of government and formal private health services in hard-to-reach communities.9 10
In Uganda, drug shops are part of an overall health system characterised by blurry boundaries between government-run and privately owned health facilities.9–11 Government health workers supplement their incomes by working at private drug outlets,10 12 charge unofficial fees6 13 and they often advise patients to source medicines from private drug outlets in the face of stock outs at government health facilities.5 14 15 Challenges faced by the health sector are compounded by high levels of poverty, with half of the population subsisting on <US$1.25 per day and a gross national income per capita of US$680.16 Uganda is a low-income country and the government contribution to health of US$13.7 per capita17 leaves health services severely under-resourced. Thus, out-of-pocket expenditure is high at 40% of total health expenditure 18 ,and technical quality of health services at low-level health facilities is poor.3 11 This leads to catastrophic expenditures for households, it endangers under-five (U5) child health and nutritional status3 and it perpetuates inequality. With regard to health indicators, the U5 mortality rate is 55/1000 live births, neonatal mortality rate is 23/1000 live births and infant mortality rate is 53/1000 live births .16 17 19
With most Ugandans (97%–99%) at risk of Plasmodium falciparum infection,20 21 malaria is a leading cause of mortality. Other illnesses also present as acute febrile episodes. Therefore, presumptive treatment of all fevers with antimalarial medicines or antibiotics, as occurs in drug shops, is no longer recommended or acceptable. It delays seeking appropriate treatment and promotes an overuse of antimicrobials, which are known to promote resistant strains and to waste scarce healthcare resources. Without significant investment in scaling up public sector health services, care-seeking from drug shops in rural areas will continue. Drug shops operate in a retail market largely influenced by care-seeker preferences, provider incentives, drug sellers’ reputations in the institutional environment and the pharmaceutical supply chain,4 22 and sometimes these influences diverge from promoting public health. They can pose a challenge for health market regulation, to assure that good quality, affordable and equitable, healthcare services are provided to the population at a reasonable price while maintaining accountability to society.23 24
Top-down interventions by governments to enhance regulatory oversight such as government enforcement of ‘unrealistic’ practice standards can be impractical and undesirable, and may adversely affect access to medicines for children. They are likely to be interpreted by drug sellers as interference in their market space, as reported by the study by Goodman et al in Tanzania,25 and could be met with resistance and evasion. If such interventions are to succeed in enhancing population health, scholars recommend that their implementation take into account a systems thinking perspective. These scholars argue that interactions among the various components of these interventions, and the intended and unintended consequences on the diverse range of stakeholders be kept in mind.25 26
We conducted an intervention study to evaluate the effect of an integrated community case management (iCCM) for childhood illnesses intervention27–29 on paediatric fever care in licensed drug shops, in a low malaria transmission setting of South Western Uganda,30 31 between May 2013 and September 2015. The intervention consisted of multiple components (described below) and it is referred to as the AXEX (access and excess) intervention for simplicity. Using a factorial model, we conceptualised the intended effects on drug seller treatment practices into predefined discrete, static and quantifiable variables.32 We measured and compared appropriate management of childhood febrile cases (intended effects) in the intervention and comparison arm, before and after the AXEX intervention. Trained enumerators collected data in care-seeker drug shop exit interviews. The AXEX intervention improved appropriate treatment of uncomplicated malaria by 80%, of acute respiratory infection by 66% and of non-bloody diarrhoea by 31%. Results of these predefined (intended) effects have been discussed in detail elsewhere.33
However, it is important to understand the context, as well as the intervention’s implementation and mechanism of effect, to better interpret the outcomes.34 The hypothesis for this paper borrows from Robert Merton’s social theory, and we argue that the AXEX intervention, like other purposive social actions, has unintended consequences.35 36 Some of these can be foreseen and prevented, and others cannot be predicted. Whereas the intended and anticipated consequences of the purposive action are always relatively desirable to the actor, unintended effects are not always undesirable. In this paper, we adopt a health market theoretical framework37 to describe and analyse the AXEX intervention. We aim to understand how the AXEX intervention was implemented, its intended and unintended consequences and their interconnections, and examine the dynamics and processes by which the effects were achieved.
Other studies have reported on the effects of child survival interventions in drug shops in Uganda.5 9 11 14 38–40 On the subject of unintended consequences of introducing malaria Rapid Diagnostic Tests (mRDT) in drug shops, Hutchinson et al report that mRDTs interact with care-seeker desire for trustworthy providers and are useful in targeting medicines for their illness.40 However, inadequate regulation of retail drug shops makes the mRDT appear more powerful than it is.40 Our study goes farther than analysing the processes through which mRDTs became part of the assemblage in the drug shop space. Our study evaluates a social franchising system, which is currently popular among global health actors despite the lack of sound empirical evidence on its role or effects.41 It incorporates an account of components that would improve the regulation of drug shops and retail health markets and forge formal linkages to government health services, which is missing in previous studies.5 38 40 Lastly, it evaluates the iCCM of childhood febrile illnesses rather than just malaria tests. Our paper provides important lessons on the design and implementation of multicomponent interventions that seek to improve access to medicines and quality health services through an often neglected—yet critical—group of healthcare providers in low-and-middle-income countries (LMICs).
Implementation of the AXEX intervention
The implementing team included Makerere University School of Public Health in collaboration with the Alliance for Health Policy and Systems Research, World Health Organization, Karolinska Institutet and Uppsala University. A prospective evaluation of the AXEX intervention in 61 registered drug shops was done in Mbarara district from May 2013 to September 2015. Mbarara is located approximately 250 km South West of Kampala, the Ugandan commercial and administrative capital.31 The district had a population of 4 72 629 people served by 58 government health facilities, private medicine outlets and the informal sector. The South Western region has a typical tropical climate with rainfall peaks in April and October.16 Recent surveillance studies estimate the malaria parasite prevalence in the region to be between 4.1%31 and 9.3%.30
The AXEX intervention adapted the integrated case management intervention28 42 recommended by WHO/UNICEF28 42 and the Ugandan Ministry of Health (MoH).27 It consisted of three components that were adapted for implementation in private licensed drug shops.
The first was the drug seller component that aimed to improve integrated case management skills for those tending to U5 febrile child, based on case detection using simple clinical signs and rapid diagnostics to guide choice of treatment. Drug sellers from enrolled licensed drug shops were trained by a MoH-certified trainer. Using the MoH iCCM curriculum, drug sellers attended a 6-day training of lectures and hands-on sessions. It addressed how to assess, test, classify and treat the childhood illnesses of malaria, acute respiratory illness (ARI) and diarrhoeal diseases. Use of diagnostic testing, referral, filling in registers and managing drug supplies were also explained. Monthly support supervision was done by a project pharmacist or clinician to reinforce the skills acquired.
The second was the service component, which focused on the distribution of medicines, diagnostics and other logistics necessary for service provision. Medicines included artemether-lumefantrine dispersible tablets (DT), DT amoxicillin, DT zinc, oral rehydration salts (ORS) and artesunate suppositories. The medicines were single dose-packaged and colour-coded for specific age groups. The diagnostics included mRDT, specific for P. falciparum and respiratory counters. Other logistics included access to life (A2L) sign posts to mark study drug shops, drug shop registers, referral slips, resupply order forms (to enable uninterrupted supply of medicines) and treatment algorithms. The medicines (at subsidised price) and diagnostics (free-of-charge) could be procured from the pharmaceutical wholesaler in the nearest town to the study area on presentation of the resupply order forms. This was to ascertain that the medicine supply was from a trusted source and also to be able to channel the subsidy to the study drug shops.
The third was a community component, which sought to improve household and community care-seeking practices with potential impact on U5 child health. To this end, messages on fever care-seeking, diagnostic testing and treatment adherence were delivered through community health workers (CHWs), radio talk shows and announcements and by word-of-mouth by community members. CHWs interacted directly with the AXEX intervention team in quarterly project workshops.
Theoretical framework
We adapted the theoretical framework (figure 1) for health market systems proposed by Bloom et al 43 to take into account key stakeholders in Uganda.
Theoretical framework for the access and excess (AXEX) intervention in drug shops in a mixed health system.
At the centre of the framework, are care-seekers as users interacting with drug sellers as health providers, and this interaction is affected and shaped by support functions that include institutionali arrangements, infrastructure, information and related services shown in the middle (grey) concentric circle. The components of the AXEX intervention (explained above) acted on these support functions and introduced new ones. The outer most concentric circle lists the other market players who influence and are affected by the support functions.
A review of the relevant literature, in-depth interviews and focus group discussions (FGDs) were used to gather data for this study. In the initial phase, stakeholders, also referred to as actors or market players were identified through a desk review of relevant literature and consultation with professional organisations and personnel,44 informed by the authors’ perception of the position or influence they may hold.
Five key player categories were identified through this process, namely: i) health providers (drug shop owners, sellers and community health workers (CHWs)); ii) beneficiaries (care-seekers); iii) central government agencies (MoH and the National Drug Authority (NDA)); iv) local government institutions of Mbarara and, v) pharmaceutical supply chain actors (manufacturers and wholesalers). Other stakeholders were not-for-profit health providers, health professional bodies (Pharmaceutical Society of Uganda (PSU) and allied health professional council), other private health providers outside the study and the global pharmaceutical supply chain.