Inputs
In a health system, ‘inputs’ are the information, mechanisms, and/or resources that go into it so that it can function. There are two types of inputs important for PHC -- “hardware” inputs (funds, human resources, medicines and supplies, physical infrastructure/facilities, and information systems) and “software” inputs (financing mechanisms, provider payment incentives, regulations, and market structure). At the point of care, inputs are transformed into outputs and outcomes via health service delivery processes. 12
Despite their importance, there is a lack of understanding about how best to transform inputs into desired PHC outputs and outcomes. This is in part because many LMICs disproportionately focus their attention on measuring and improving the availability of “hardware” inputs. To achieve high-quality PHC, however, countries will need to take a more holistic approach. Such an approach should make sure that both types of inputs are available and high-quality (i.e. they are reliable and function as intended). It should also measure whether inputs are being transformed into desired outputs and outcomes, which is not currently well understood. To do so, countries will need to measure/assess whether existing service delivery processes produce desired outputs and outcomes, and if not, why not, and where improvements are needed. 12
Because inputs and service delivery processes are linked, it is also important that health systems accompany strong inputs with effective service delivery mechanisms to drive better health outcomes and ultimately work to provide the highest quality of care. 1 Monitoring and evaluation of a health system should include a “stepwise” analysis that links these critical inputs to health outcomes that can be used to make decisions regarding improvement efforts surrounding performance and the delivery of high-quality care.3 It should also include efforts to measure and incorporate the perspectives of patients and providers that are involved in these processes. 12