Quantitative phase
trauma
Data for the quantitative phase were collected during a prospective, international cohort SWAT. Consecutive adult patients (aged over 18 years) recruited to the FALCON trial were eligible. These included a broad range of abdominal operations with a predicted clean-contaminated, contaminated or dirty operating field, and a planned skin incision of greater than 5 cm. Operations could be performed for benign, malignant, trauma, or obstetric indications. Consent for an additional telephone follow-up call to administer the WHQ was taken at the same time as trial consent, using a targeted Informed Consent Form and Patient Information Sheet. Patient and community partners supported co-production of these resources to ensure culturally attuned language and delivery.Telephone administration of the translated WHQ was undertaken 28–30 days after surgery (in the 72 h before in-person follow-up) integrated into the host trial pathway. The telephone WHQ was administered by a researcher, doctor, or research nurse (non-consultant or attending grade), who was independent of the assessment for the trial primary outcome at 30 days after surgery. Optimization and quality assurance of WHQ administration is described in 