In addition, 2.51 FHWs are needed to cover the remaining services.
In the second scenario of task division with mutual task sharing, one midwife and only two FHWs are required.
One-way sensitivity analysis illustrated that assuming full coverage of services which traditionally occurs in need-based approach for estimating of required staff, we need three FHWs and one midwife in the both scenarios.
The sensitivity analysis illustrated that task sharing allows district health center to cover the demanded services in a Health Post, with less than 4,000 population, by one midwife while without task sharing it is necessary to employ at least one midwife and one FHW. One midwife and two FHWs are needed if the Health Post's catchment area population is 9,000 to 14,000, in scenario 2.
Pileroodi had suggested one midwife and three FHWs to provide necessary services for a population of 12,000, emphasizing that 234,000 minutes would be needed per annum in an Iranian Health Post (23).
Task sharing between midwives and FHWs mutually in the Health Posts leads to equally task division.
This study was designed to assess the effect of task sharing, mutually between midwives and Family Health Workforces (FHWs), on the number of needed staff across the Iranian Health Posts.
Methods: The workload and required number of midwives and FHWs in a Health Post were calculated and compared in two different scenarios of task division using a combined approach for estimating the number of required staff.
Results: By applying mutual task sharing, the required number of staff for Health Posts was one midwife and two FHWs for a standard population of 12,500; one FHW less than that when no task sharing was applied.
midwife and FHW, was calculated in two scenarios; i) providing the specialized services by each personnel, and ii) providing services with mutual task sharing between two types of personnel, using the following formula (21) adapted from combination of two formulas; one used in utilization-based approach [Workload Indicators of Staffing Need (WISN) method] (22) and the other used in the need-based approach (Pileroodi method) (23);
Through consulting the related departments in Kashan district health center, services and service components that should be provided by FHW and midwife in a Health Post were listed.
To measure time of providing services, the "k x target population x frequency x standard activity" of all services that should be provided per 12,500 people (the standard catchment area population for a Health Post) was calculated separately for midwife and FHW. The workload of both personnel was calculated once for specialized services as scenario 1 and once for specialized services in addition to shared services as scenario 2.