Background: The equitable distribution of a skilled health workforce is critical to health service delivery, and Kaduna state has taken significant steps to revamp the primary health care system to ensure access to health care for its populace. However, some of these investments are yet to yield the desired outcomes due to workforce shortages and inequitable distribution of those available. Methods: A Workload Indicator for Staffing Need study was conducted at the primary health care level in Kaduna state. The study focused on estimating staffing requirements; Nurse/Midwife and Community Health Worker practitioners; Community Health Officer, Community Health Extension Worker and Junior Community Health Extension Worker, in all government prioritized primary health care facilities. Ten focal primary health care facilities in Kaduna North Local Government Area were included in the study. Results: Findings revealed a shortage of Nurses/Midwives and Community Health Workers across the study facilities. For the Nurse/Midwife staffing category, 9/10 PHCs have a Workload Indicator for Staffing Need ratio < 1; indicating that the number of staff in the Nurse/Midwife category is insufficient to cope with the workload. In two of the ten primary health care facilities, there is an excess in the number of CHWs available; a Workload Indicator for Staffing Need ratio > 1 was calculated. Conclusions: The Workload Indicator for Staffing Need study highlights the staffing needs in government prioritized primary health care facilities in Kaduna state. This evidence establishes the basis for the application of an evidence-based approach to determining staffing needs across the primary health care sector in the State, to guide workforce planning strategies and future investments in the health sector. The World Health Organisation Workload Indicator for Staffing Need tool is useful in estimating staffing needs required to cope with workload pressures, particularly in a resources-constrained environment like Kaduna State.

Background: The equitable distribution of a skilled health workforce is critical to health service delivery. Kaduna state has taken significant steps to revamp the primary health care system to ensure access to health care for its populace. However, these investments are yet to yield the desired outcomes due to health workforce shortages and the inequitable distribution of those available. Methods: A Workload Indicator for Staffing Need (WISN) study was conducted at Kaduna state's primary health care level. The study focused on estimating staffing requirements; Nurses/Midwives and Community Health Worker practitioners, Community Health Officers, Community Health Extension Workers, and Junior Community Health Extension Workers in all government-prioritised primary health care facilities. A total of ten focal primary health care facilities in Kaduna North Local Government Area (LGA) were included in the study. Results: Findings from the study revealed a shortage of Nurses/Midwives and Community Health Workers across the study facilities. For the Nurse/Midwife staffing category, nine of the ten PHCs have a WISN ratio < 1, indicating that the number of staff in the Nurse/Midwife category is insufficient to cope with the workload. In two of the ten primary health care facilities, there is an excess in the number of CHWs available; a WISN ratio > 1 was calculated. Conclusion: The WISN study highlights staffing needs in Kaduna State's government-prioritised primary health care facilities. This evidence establishes the basis for applying an evidence-based approach to determining staffing needs across the primary health care sector in the State to guide workforce planning strategies and future investments in the health sector. The World Health Organisation (WHO) WISN tool is useful for estimating staffing needs required to cope with workload pressures, particularly in a resource-constrained environment like Kaduna State.