A cost-effectiveness analysis of provider interventions to improve health worker practice in providing treatment for uncomplicated malaria in Cameroon: a study protocol for a randomized controlled trial

Virginia Wiseman, Lindsay J Mangham, Bonnie Cundill, Olivia A Achonduh, Akindeh Mbuh Nji, Abanda Ngu Njei, Clare Chandler, Wilfred F Mbacham, Virginia Wiseman, Lindsay J Mangham, Bonnie Cundill, Olivia A Achonduh, Akindeh Mbuh Nji, Abanda Ngu Njei, Clare Chandler, Wilfred F Mbacham

Abstract

Background: Governments and donors all over Africa are searching for sustainable, affordable and cost-effective ways to improve the quality of malaria case management. Widespread deficiencies have been reported in the prescribing and counselling practices of health care providers treating febrile patients in both public and private health facilities. Cameroon is no exception with low levels of adherence to national guidelines, the frequent selection of non-recommended antimalarials and the use of incorrect dosages. This study evaluates the effectiveness and cost-effectiveness of introducing two different provider training packages, alongside rapid diagnostic tests (RDTs), designed to equip providers with the knowledge and practical skills needed to effectively diagnose and treat febrile patients. The overall aim is to target antimalarial treatment better and to facilitate optimal use of malaria treatment guidelines.

Methods/design: A 3-arm stratified, cluster randomized trial will be conducted to assess whether introducing RDTs with provider training (basic or enhanced) is more cost-effective than current practice without RDTs, and whether there is a difference in the cost effectiveness of the provider training interventions. The primary outcome is the proportion of patients attending facilities that report a fever or suspected malaria and receive treatment according to malaria guidelines. This will be measured by surveying patients (or caregivers) as they exit public and mission health facilities. Cost-effectiveness will be presented in terms of the primary outcome and a range of secondary outcomes, including changes in provider knowledge. Costs will be estimated from a societal and provider perspective using standard economic evaluation methodologies.

Trial registration: ClinicalTrials.gov: NCT00981877.

Figures

Figure 1
Figure 1
Effect of Provider Interventions on the Treatment Received by Patients.
Figure 2
Figure 2
Primary outcome measure.
Figure 3
Figure 3
Eligibility, selection, enrolment and methods of data collection.

References

    1. Nshakira N, Kristensen M, Ssali F, Whyte SR. Appropriate treatment of malaria? Use of antimalarial drugs for children's fevers in district medical units, drug shops and homes in eastern Uganda. Trop Med Int Health. 2002;7:309–316. doi: 10.1046/j.1365-3156.2002.00858.x.
    1. Williams H, Jones C. A critical review of behavioral issues related to malaria control in sub-Saharan Africa: what contributions have social scientists made? Soc Sci & Med. 2004;59:501–523. doi: 10.1016/j.socscimed.2003.11.010.
    1. Reyburn H, Mbakilwa H, Mwangi R, Obeni M, Raimos O. Rapid diagnostic tests compared with malaria microscopy for guiding outpatient treatment of febrile illness in Tanzania: randomized trial. BMJ. 2007;334:403. doi: 10.1136/.
    1. Zurovac D, Njogu J, Akhwale W, Hamer DH, Snow RW. Translation of artemether-lumefantrine treatment policy into paediatric clinical practice: an early experience from Kenya. Trop Med Int Health. 2008;13:99–107. doi: 10.1111/j.1365-3156.2007.01980.x.
    1. Zurovac D, Tibenderana JK, Nankabirwa J, Ssekitooleko J, Njogu JN, Rwakimari JB, Meek S, Talisuna A, Snow RW. Malaria case-management under artemether-lumefantrine treatment policy in Uganda. Malar J. 2008;7:181. doi: 10.1186/1475-2875-7-181.
    1. Rowe AK, Ponce de Leon GF, Mihigo J, Santelli CFS, Miller NP, Van-Dunem P. Quality of malaria case management at outpatient health facilities in Angola. Malar J. 2009;8:275. doi: 10.1186/1475-2875-8-275.
    1. Juma E, Zurovac D. Changes in health workers' malaria diagnosis and treatment practices in Kenya. Malar J. 2011;10:1. doi: 10.1186/1475-2875-10-1.
    1. Mangham L, Cundill B, Ezeoke O, Nwala E, Uzochukwu BSC, Wiseman V, Onwujekwe O. Treatment of uncomplicated malaria at public and private health facilities in South-Eastern Nigeria. Malar J. 2011;10:155. doi: 10.1186/1475-2875-10-155.
    1. Institut Nationale de la Statistique du Cameroun: Demographic Health Survey 2004.
    1. Cameroon National Malaria Control Programme. Annual Report 2008.
    1. World Health Organization. Guidelines for the treatment of malaria. second. World Health Organization, Geneva; 2010.
    1. Mangham LJ, Cundill B, Achonduh OA, Ambebila JN, Lele A, Metoh TN, Ndive SN, Ndong IC, Nguela RL, Nji AM, Orang-Ojong B, Pamen-Ngako J, Wiseman V, Mbacham WF. Malaria Prevalence and Treatment of Febrile Patients Attending Health Facilities in Cameroon. TMIH. 2011, Nov 21. [Epub ahead of print]
    1. Ministry of Public Health of the Republic of Cameroon: Scaling up malaria control for impact in Cameroon. Global Fund Proposal (R9_CCM_CMR_HTM_PF_4Aug09_ENG), Geneva. 2009.
    1. Hopkins H, Asiimwe C, Bell D. Access to antimalarial therapy: accurate diagnosis is essential to achieving long term goals. BMJ. 2009;339:b2606. doi: 10.1136/bmj.b2606.
    1. Amexo M, Tolhurst R, Barnish G, Bates I. Malaria misdiagnosis: effects on the poor and vulnerable. Lancet. 2004;364:1896–1898. doi: 10.1016/S0140-6736(04)17446-1.
    1. Zikusooka CM, McIntyre D, Barnes KI. Should countries implementing an artemisinin-based combination malaria treatment policy also introduce rapid diagnostic tests? Malar J. 2008;7:176. doi: 10.1186/1475-2875-7-176.
    1. World Health Organization. Global Plan for Artemisinin Resistance Containment. Geneva: Global Malaria Programme; 2011.
    1. Bell D, Perkins MD. Making malaria testing relevant: Beyond test purchase. Trans R Soc Trop Med Hyg. 2008;102:1064–6. doi: 10.1016/j.trstmh.2008.05.007.
    1. Williams HA, Causer L, Metta E, Malila A, O'Reilly T, Abdulla S, Kachur P, Bloland PB. Dispensary level pilot implementation of rapid diagnostic tests: an evaluation of RDT acceptance and usage by providers and patients - Tanzania, 2005. Malar J. 2008;7:239. doi: 10.1186/1475-2875-7-239.
    1. Chandler CIR, Whitty CJM, Ansah EK. How can malaria rapid diagnostic tests achieve their potential? A qualitative study of a trial at health facilities in Ghana. Malar J. 2010;9:95.
    1. Kyabayinze DJ, Asiimwe C, Nakanjako D, Nabakooza J, Counihan H, Tibenderana JK. Use of RDTs to improve malaria diagnosis and fever case management at primary health facilities in Uganda. Malar J. 2010;9:200. doi: 10.1186/1475-2875-9-200.
    1. Mukanga D, Tibenderana JK, Kiguli J, Pariyo GW, Waiswa P, Bajunirwe F, Mutamba B, Counihan H, Ojiambo G, Kallander K. Community acceptability of use of rapid diagnostic tests for malaria by community health workers in Uganda. Malar J. 2010;9:203. doi: 10.1186/1475-2875-9-203.
    1. Onwujekwe O, Uzochukwu B, Dike N, Uguru Nm Nwobi E, Shu E. Malaria treatment perceptions, practices and influences on provider behaviour: comparing hospitals and non-hospitals in south-east Nigeria. Malar J. 2009;8:246. doi: 10.1186/1475-2875-8-246.
    1. World Health Organization. Use of Rapid Diagnostic Tests. Second. 2006. ISBN 9290612045.
    1. Chandler CIR, Mangham L, Njei AN, Achonduh O, Mbacham WF, Wiseman V. As a clinician, you are not managing lab results, you are managing the patient: how the enactment of malaria at health facilities in Cameroon compares with new WHO guidelines for the use of malaria tests. SS&M. 2012. in press Unpublished data.
    1. Smith LA, Jones C, Meek S, Wenster J. Review: Provider practice and user behaviour interventions to improve prompt and effective treatment of malaria: do we know what works? Am J Trop Med Hy. 2009;80(3):326–335.
    1. Goodman CA, Brieger W, Unwin A, Mills A, Meek S, Greer G. Medicine Sellers and Malaria Treatment in Sub-Saharan Africa: What Do They Do and How Can Their Practice Be Improved? Am J Trop Med Hy. 2007;77(Suppl 6):203–218.
    1. Brieger W, Unwin A, Meek S, Greer G. Interventions to improve the role of medicine sellers in malaria case management for children in Africa. London UK and Arlington, Va, USA: The Malaria Consortium and BASICS for the United States Agency for International Development; prepared for the Roll Back Malaria's sub-group for Communication and Training and Malaria Case Management Working Group; 2005.
    1. Atangana J, Bigoga JD, Patchoke S, Ndjemai HMN, Tabue NR, Nem TE, Fonjo E. Anopheline fauna and malaria transmission in four ecologically distinct zones in Cameroon. Acta Trop. 2010;115(1-2):131–136. doi: 10.1016/j.actatropica.2010.02.014.
    1. Cameroon National Malaria Control Program. Plan Strategique National de lute contre le Paludisme au Cameroun. 2011.
    1. World Health Organisation, FIND, CDC, & TDR. Malaria rapid diagnostic test performance. Results of WHO product testing of malaria RDTs: Round 2 (2009) 2010.
    1. Drummond MF, Sculpher MJ, Torrance GW, O'Brien BJ, Stoddart GL. Methods for the economic evaluation of health care programmes. 3. Oxford: Oxford Medical Publications; 2005.
    1. Hayes RJ, Moulton LH. Cluster Randomised Trials. Chapman & Hall/CRC; 2009.
    1. Sismanidis C, Moulton LH, Ayles H, Fielding K, Schaap A, Beyers N, Bond G, Godfrey-Faussett P, Hayes R. Restricted randomisation of ZAMSTAR: a 2 × 2 factorial cluster randomized trial. Clin Trials. 2008;5:316–3278. doi: 10.1177/1740774508094747.
    1. Moulton LH. Covariate-based constrained randomization of group-randomized trials. Clin Trials. 2004;1:297–305. doi: 10.1191/1740774504cn024oa.
    1. Cheung YB, Jeffries D, Thomson A, Milligan P. A simple approach to test for the interaction between intervention and an individual-level variable in community randomized trials. TMIH. 2008;19(2):247–255.

Source: PubMed

3
Sottoscrivi