Another challenge is to properly contextualize discussions on a new health intervention relative to existing health interventions targeting the same disease, to other interventions of the same modality (e.g. drugs, vaccines) and to priorities within the wider health system (WHO 2005; Stop TB Partnership and WHO 2007).
The IMB model proposes an intervention development process involving (1) elicitation of client resources and needs and, (2) matching intervention content to existing need and behaviour change objectives, (3) implementation of information, motivation and skill development techniques interventions according to protocol and, finally, (4) evaluation.
Usual Care (brief intervention) compared to existing practice (Real Control) was also cost-effective ($12,153 per quality adjusted life year gained).
2. Relational Integration – how does a complex intervention relate to existing knowledge and relationships?
The school setting is a logical choice as a context for implementing healthy weight interventions due to existing infrastructure, staff, curricula, facilities, policies, and environments that have potential to promote healthy behaviours.
The approach to costing the addition of a health service intervention to an existing program is to concentrate on additional or "incremental" costs only, since costs of the existing program would have been incurred even without the intervention.
More commonly proposed policy responses to limit informal providers in low- and middle-income countries include government intervention to enforce existing regulation, provide training to improve their services, foster relationships between them and formal providers, and reduce demand for their services by improving access to formal providers [1].
Written consent was not obtained from individual patients as this was a population based health systems intervention to improve existing guidelines and protocols, and applied to the patient population without exception or exclusion.
One is to examine nursing intervention to bolster existing networks or to promote the development of new ones [ 17].
The approach addressing this kind of intervention to an existing healthcare system has not been scientifically studied before in a resource poor setting and the results will be of great interest for the public health community.
