Abstract

Objective Spontaneous vaginal births are often the presumed choice, representing 45% of UK births. However, information about benefits and risks is inconsistently given, impacting decision‐making and experience. A Core Information Set (CIS) is an agreed set of information points discussed prior to a decision. We aimed to develop a CIS for vaginal birth. Design A Delphi study was used to create the CIS. Information points were identified from a literature search, patient leaflets, interviews, and a survey. These informed a two‐round Delphi survey, where stakeholders rated item importance. Items rated critically important by ≥ 80% of parents or professionals, and of limited importance by < 15%, progressed to consensus meetings, where 20 parents and professionals discussed retained items. The final CIS was populated with an engagement group ensuring accessibility. Setting The study took place in the UK, with participants recruited online. Population Pregnant and postnatal women, birth partners, healthcare professionals, medicolegal professionals, and representatives from relevant organizations. Main Outcome A CIS for vaginal birth. Results 77 information items were identified. In round 1 (631 participants) of the Delphi Survey, 84.5% were from the patient group and 15.5% from the professional group; in round 2 (228 participants), 74.3% were from the patient group and 25.7% from the professional group. 29 items met the criteria for consensus discussion. The final CIS includes 19 information points addressing: labour process, pain relief, labour complications, procedures or interventions during labour, experiences after birth, outcomes for the baby and labour environment. Conclusions This CIS can facilitate discussions and support informed decision‐making about vaginal birth.