Table 1.

Definition of coverage determinants used in the Tanahashi model.

Coverage determinants	Definition
Availability of essential health commodities	Refers to availability of health system inputs, for example, medicines and related commodities for maternal and newborn care.
Availability of human resources	Represents availability of staff at health facilities that provide maternal and newborn care services.
Accessibility	Physical accessibility of service delivery points.
Initial utilization	Refers to first contact or use of health services or interventions, for example, first antenatal visit.
Continuous coverage	Refers to the extent to which the full course of contact with the health system required to be effective was achieved, for example, the proportion of women receiving four antenatal contacts.
Effective coverage	Represents the quality of the intervention which is defined as the minimum inputs and processes sufficient to achieve defined health effects.