Data collection
We created a 12-item questionnaire covering demographic variables (3 items), local facilities and practice following IUFD (5 items), routine post-mortem work-up (1 item) and obstetrical care after IUFD (3 items;Appendix S1 ). The questionnaire was sent out to all Austrian secondary and tertiary referral hospitals with maternity units (n=75) along with an invitation letter addressed to the departmental director and a franked response envelope. Survey time was between January and July 2019 and deadline was set after 2 months of receipt. Returned questionnaires were extracted for all variables and answers were transferred into an excel file sheet. Institutional epidemiological data were retrieved from the Department of Clinical Epidemiology Tirol Kliniken, Austria, and combined with our dataset. After data check for integrity and consistency, the database was frozen and made anonymous prior to final analysis.