BACKGROUND:
Measuring experience and outcomes of abortion care from women’s perspectives can enhance access to person-centred and rights-based abortion care, resulting in better healthcare outcomes and improve service quality, which require reliable measurements.

OBJECTIVES:
To develop patient-reported experience and patient-reported outcome measures for abortion care.

METHODS:
A mixed method design was employed to develop measurements; i) A systematic review explored experiences and outcomes of abortion care and its existing measurement in sub-Saharan countries; ii) a qualitative study explored abortion care pathways in Ethiopia, to inform the item pool for the Delphi study, iii) Two rounds of modified-Delphi was conducted with consumer and health experts in Ethiopia, iv) cognitive interviews were conducted to assess the user-friendliness of the tool by consumers. Qualitative data were analysed using deductive thematic analysis. Descriptive results were presented using frequencies.

RESULTS:
Overall, thirty items were developed through rigorous and standard tool development phases following COSMIN guidelines. The content validity index of the entire scale was 0.91 and 0.75 with average methods and universal agreement approach, which indicates high and moderate validity, respectively; meaning 75% of the items were rated as relevant by experts. Overall, item-level content validity index ranges from 0.55 to one. All items with the item level content validity index of < 0.7 were removed from the tool. Women indicated the new measurement covered important experiences and outcomes of abortion care and was quick and easy to complete.

CONCLUSIONS:
This study developed measurements to assess abortion care experiences and outcomes. Future research should validate the measurements for its use in diverse population in the world.

KEY MESSAGE:
This study developed world-first valid measurements to assess abortion care experiences and outcomes. The newly developed measurements are the first to measure abortion care experiences and outcomes, with utility for policymakers, researchers, and providers to monitor quality of services and improve maternal health. Poster session 1 (Group A)