title: [The analysis of complex interventions in public health: the case of the prevention of sexually transmitted infections and blood-borne infections in Montreal].
abstract: OBJECTIVE
  Based on a theory of intervention as a complex action system, analyze collaboration among partners in Montréal's sexually transmitted and blood-borne infections (STBBI) prevention program to identify main operations problems and possible scenarios for change to achieve better outcomes.
  
  
  METHODS
  A descriptive study was conducted using three data sources - public policies and programs, system management documents, and interviews with three types of partners. The results were validated with stakeholders.
  
  
  RESULTS
  Five main operations problems affecting the capacity of the system to provide expected services were identified, as well as strategies the partners use to address these.
  
  
  CONCLUSIONS
  Two scenarios for system change to increase its effectiveness in achieving program goals are discussed.
authors.affiliation: Direction de santé publique de l'Agence de la santé et des services sociaux de Montréal, Montréal, QC. abilodea@santepub-mtl.qc.ca
authors.forename: Angèle
authors.initials: A
authors.lastname: Bilodeau
authors.forename: Jean
authors.initials: J
authors.lastname: Beauchemin
authors.forename: Denis
authors.initials: D
authors.lastname: Bourque
authors.forename: Marilène
authors.initials: M
authors.lastname: Galarneau
mesh_terms: D017848:Blood-Borne Pathogens; D002170:Canada; D003299:Cooperative Behavior; D006801:Humans; D007373:Interinstitutional Relations; D015397:Program Evaluation; D015980:Public Health Practice; D012749:Sexually Transmitted Diseases / Q000517:prevention & control*
keywords: Complex intervention; STBBI prevention; network intervention; public-community collaboration; social theories; system of collective action