title: A review of generalist and specialist community health workers for delivering adolescent health services in sub-Saharan Africa.
abstract: BACKGROUND
  The health of adolescents is increasingly seen as an important international priority because the world's one point eight billion young people (aged 10 to 24 years) accounts for 15.5% of the global burden of disease and are disproportionately located in low- and middle-income countries (LMICs). Furthermore, an estimated 70% of premature adult deaths are attributable to unhealthy behaviors often initiated in adolescence (such as smoking, obesity, and physical inactivity). In order for health services to reach adolescents in LMICs, innovative service delivery models need to be explored and tested. This paper reviews the literature on generalist and specialist community health workers (CHWs) to assess their potential for strengthening the delivery of adolescent health services.
  
  
  METHODS
  We reviewed the literature on CHWs using Medline (PubMed), EBSCO Global Health, and Global Health Archive. Search terms (n = 19) were sourced from various review articles and combined with subject heading 'sub-Saharan Africa' to identify English language abstracts of original research articles on generalist and specialist CHWs.
  
  
  RESULTS
  A total of 106 articles, from 1985 to 2012, and representing 24 African countries, matched our search criteria. A single study in sub-Saharan Africa used CHWs to deliver adolescent health services with promising results. Though few comprehensive evaluations of large-scale CHW programs exist, we found mixed evidence to support the use of either generalist or specialist CHW models for delivering adolescent health services.
  
  
  CONCLUSIONS
  This review found that innovative service delivery approaches, such as those potentially offered by CHWs, for adolescents in sub-Saharan Africa are lacking, CHW programs have proliferated despite the absence of high quality evaluations, rigorous studies to establish the comparative effectiveness of generalist versus specialist CHW programs are needed, and further investigation of the role of CHWs in providing adolescent health services in sub-Saharan Africa is warranted.
authors.affiliation: MRC/Wits Developmental Pathways for Health Research Unit, University of the Witwatersrand, Johannesburg, South Africa. adam.koon@lshtm.ac.uk.
authors.forename: Adam D
authors.initials: AD
authors.lastname: Koon
authors.forename: Jane
authors.initials: J
authors.lastname: Goudge
authors.forename: Shane A
authors.initials: SA
authors.lastname: Norris
mesh_terms: D000293:Adolescent; D016497:Adolescent Health Services / Q000458:organization & administration*; D017954:Africa South of the Sahara; D003150:Community Health Workers / Q000458:organization & administration*; D005194:Family Practice / Q000458:organization & administration*; D006302:Health Services Research; D006801:Humans; D011361:Professional Competence; D013038:Specialization