Bias The project officers were trained by project management. They were not involved in patient care and only acquired data by observing hospital staff, using patient records or from patient relatives. All project officers had at least a health science master's degree and were continuously supervised by project management. Injury coders will be blinded to patient demographics and mortality data during the conversion from free-text injuries to ICD-codes and will be trained prior to the ICD-10 coding using the World Health Organization (WHO) ICD-10 online training module. They will gain access to the injury dataset first after reaching 80% agreement in several samples of 50 injuries compared to an external coder.