MEMA Kwa Vijana Trial: Impact of an Adolescent Sexual and Reproductive Health Intervention in Mwanza, Tanzania
NCT ID: NCT00248469
Last Updated: 2006-10-20
Study Results
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Basic Information
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COMPLETED
PHASE3
10000 participants
INTERVENTIONAL
1998-07-31
2002-04-30
Brief Summary
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Detailed Description
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Methods: Using data from a prior population-based survey of 9,445 15-19 year olds, 20 communities were stratified and randomly allocated to either receive the new interventions (Intervention Group) or standard interventions (Comparison Group) during Phase 1 (January 1999-December 2001) of the MEMA kwa Vijana Project. The new intervention programme had four major components: community activities; teacher-led, peer-assisted sex education in the last three years of primary school (Years 5-7); training and supervision of health workers to provide "youth-friendly" STD and family planning services; and peer condom social marketing for youth (from January 2000). The pre-defined primary outcomes were HIV incidence and Herpes simplex virus type 2 (HSV2) in a cohort of 9,645 adolescents, mean age 15.5 years, \[95% range 14.1-18.3 years\], who were recruited in late 1998 before entering Year 5, 6 or 7 of primary school. Secondary outcomes included six further biomedical, five behavioural, one attitudinal, and three knowledge outcomes.
Findings: At the follow-up survey in late 2001-early 2002, the intervention had had a statistically significant impact on all knowledge and attitudinal outcomes and also on reported condom use and reported STI symptoms in both males and females. Significantly fewer males in the intervention communities reported sexual debut during follow-up, or having multiple sexual partners during the past 12 months, but no difference was seen for these two outcomes among females. There were only five HIV seroconversions in males. Among females, the adjusted rate ratio for HIV incidence (intervention vs comparison communities) was 0.76 (95%CI: 0.35,1.65). Overall prevalences of HSV2 were 11.9% in males and 21.1% in females, with adjusted prevalence ratios (PRs) of 0.92 (95%CI:0.69,1.22) and 1.05 (95%CI:0.83,1.32) respectively. There was no consistent impact on the other biological outcomes, with adjusted PRs varying from 0.78 (95%CI:0.46,1.30) for syphilis in males to 1.94 (95%CI:1.01,3.72) for gonorrhoea in females. A non-significant trend towards greater beneficial impact among students enrolled in Year 4, who potentially received all three years of the in-school programme, was seen for most outcomes. The beneficial impact on knowledge and reported attitudes was confirmed in a cross-sectional survey in a different group of students who were in Year 7 of primary school in mid-2002.
Conclusions: The intervention substantially improved knowledge, reported attitudes and reported condom use in both sexes, and reported sexual behaviour in males, but had no consistent impact on biological outcomes within the three-year trial period. The data suggest a dose-related effect for several outcomes, with greater impact among those receiving two or three years of the in-school programme.
Conditions
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Keywords
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Study Design
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RANDOMIZED
SINGLE_GROUP
PREVENTION
NONE
Interventions
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In-school Sexual Health Education
Youth-friendly health services
Youth condom promotion & distribution
Community activities related to adolescent sexual health
Eligibility Criteria
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Inclusion Criteria
* About to enter year 5, 6 or 7 of a primary school in one of the 20 trial communities
Exclusion Criteria
14 Years
ALL
Yes
Sponsors
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European Commission
OTHER
Development Cooperation Ireland (previously known as Ireland Aid)
UNKNOWN
London School of Hygiene and Tropical Medicine
OTHER
Principal Investigators
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David A Ross, BMBCh, PhD
Role: PRINCIPAL_INVESTIGATOR
London School of Hygiene and Tropical Medicine
Richard J Hayes, DSc
Role: PRINCIPAL_INVESTIGATOR
London School of Hygiene and Tropical Medicine
David C Mabey, MD, PhD
Role: PRINCIPAL_INVESTIGATOR
London School of Hygiene and Tropical Medicine
John M Changalucha, MSc
Role: PRINCIPAL_INVESTIGATOR
Tanzania National Institute for Medical Research
Locations
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Tanzania National Institute for Medical Research
Mwanza, Mwanza Region, Tanzania
Countries
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References
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Hayes RJ, Changalucha J, Ross DA, Gavyole A, Todd J, Obasi AI, Plummer ML, Wight D, Mabey DC, Grosskurth H. The MEMA kwa Vijana project: design of a community randomised trial of an innovative adolescent sexual health intervention in rural Tanzania. Contemp Clin Trials. 2005 Aug;26(4):430-42. doi: 10.1016/j.cct.2005.04.006.
Todd J, Changalucha J, Ross DA, Mosha F, Obasi AI, Plummer M, Balira R, Grosskurth H, Mabey DC, Hayes R. The sexual health of pupils in years 4 to 6 of primary schools in rural Tanzania. Sex Transm Infect. 2004 Feb;80(1):35-42. doi: 10.1136/sti.2003.005413.
Plummer ML, Wight D, Ross DA, Balira R, Anemona A, Todd J, Salamba Z, Obasi AI, Grosskurth H, Changalunga J, Hayes RJ. Asking semi-literate adolescents about sexual behaviour: the validity of assisted self-completion questionnaire (ASCQ) data in rural Tanzania. Trop Med Int Health. 2004 Jun;9(6):737-54. doi: 10.1111/j.1365-3156.2004.01254.x.
Plummer ML, Ross DA, Wight D, Changalucha J, Mshana G, Wamoyi J, Todd J, Anemona A, Mosha FF, Obasi AI, Hayes RJ. "A bit more truthful": the validity of adolescent sexual behaviour data collected in rural northern Tanzania using five methods. Sex Transm Infect. 2004 Dec;80 Suppl 2(Suppl 2):ii49-56. doi: 10.1136/sti.2004.011924.
Obasi AI, Balira R, Todd J, Ross DA, Changalucha J, Mosha F, Grosskurth H, Peeling R, Mabey DC, Hayes RJ. Prevalence of HIV and Chlamydia trachomatis infection in 15--19-year olds in rural Tanzania. Trop Med Int Health. 2001 Jul;6(7):517-25. doi: 10.1046/j.1365-3156.2001.00738.x.
Lemme F, Doyle AM, Changalucha J, Andreasen A, Baisley K, Maganja K, Watson-Jones D, Kapiga S, Hayes RJ, Ross DA. HIV Infection among Young People in Northwest Tanzania: The Role of Biological, Behavioural and Socio-Demographic Risk Factors. PLoS One. 2013 Jun 21;8(6):e66287. doi: 10.1371/journal.pone.0066287. Print 2013.
Doyle AM, Weiss HA, Maganja K, Kapiga S, McCormack S, Watson-Jones D, Changalucha J, Hayes RJ, Ross DA. The long-term impact of the MEMA kwa Vijana adolescent sexual and reproductive health intervention: effect of dose and time since intervention exposure. PLoS One. 2011;6(9):e24866. doi: 10.1371/journal.pone.0024866. Epub 2011 Sep 13.
Doyle AM, Ross DA, Maganja K, Baisley K, Masesa C, Andreasen A, Plummer ML, Obasi AI, Weiss HA, Kapiga S, Watson-Jones D, Changalucha J, Hayes RJ; MEMA kwa Vijana Trial Study Group. Long-term biological and behavioural impact of an adolescent sexual health intervention in Tanzania: follow-up survey of the community-based MEMA kwa Vijana Trial. PLoS Med. 2010 Jun 8;7(6):e1000287. doi: 10.1371/journal.pmed.1000287.
Other Identifiers
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MkV1: ITIDRD90
Identifier Type: -
Identifier Source: org_study_id