Hadi Jalilvand - Msc of Epidemiology, Department of Epidemiology, Faculty of Health, Tabriz University of Medical Sciences, Tabriz, Iran.
Homayoun Sadeghi-Bazargani - Road Traffic Injury Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
Mohammad Meshkini - Medical Emergency, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran.
Mojtaba Abdi - BSc of Nursing, Student Research Committee, Faculty of Nursing, Iran University of Medical Sciences, Tehran, Iran.
Mohammad Saadati - Road Traffic Injury Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.

Background: Trauma injuries are a health threat to the whole world and according to ۲۰۱۶ WHO report, are one of the top ten causes of death. This study aimed to determine the content validity and inter-rater reliability of a data collection tool used to develop a national Trauma Prognostic Scale (TPS).Methods: The study was conducted in three stages including the development of the primary tool, assessment of the validity tool, and assessment of the reliability. The content validity, inter-rater reliability, and intra-rater reliability were assessed. For reliability assessment, ۴۵ trauma patients from three trauma specialty centers in Tehran and Tabriz metropolises participated in the study.Results: The final data collection tool had a total of ۵۱ items in six parts as demographic (part A with ۹ items); past medical history (part B with۱۴ items); type of patients’ transferring (Part C with ۳ items); pre-hospital measures (part D with ۹ items); physiological indicators of injury severity (part E with ۹ items), and anatomical indicators of injury severity (part F with ۷ items). The content validity of the tool was confirmed with a total scale-level content validity (S-CVI) = ۰.۹۳, S-CVI= ۰.۹۲ for part A, S-CVI= ۰.۹۰ for part B, S-CVI= ۱.۰۰۰ for part C, S-CVI= ۰.۹۰ for part D, S-CVI= ۰.۹۵ for part E, and S-CVI= ۰.۹۱ for part F. Spearman correlation was above ۰.۷ for all items.Conclusions: The content validity, and inter-rater test-retest reliability of the data collection tool for the developed TPS was confirmed.Keywords: Trauma, Injury, Prognostic, Validity, ReliabilityBackground: Trauma injuries are a health threat to the whole world and according to ۲۰۱۶ WHO report, are one of the top ten causes of death. This study aimed to determine the content validity and inter-rater reliability of a data collection tool used to develop a national Trauma Prognostic Scale (TPS). Methods: The study was conducted in three stages including the development of the primary tool, assessment of the validity tool, and assessment of the reliability. The content validity, inter-rater reliability, and intra-rater reliability were assessed. For reliability assessment, ۴۵ trauma patients from three trauma specialty centers in Tehran and Tabriz metropolises participated in the study. Results: The final data collection tool had a total of ۵۱ items in six parts as demographic (part A with ۹ items); past medical history (part B with۱۴ items); type of patients’ transferring (Part C with ۳ items); pre-hospital measures (part D with ۹ items); physiological indicators of injury severity (part E with ۹ items), and anatomical indicators of injury severity (part F with ۷ items). The content validity of the tool was confirmed with a total scale-level content validity (S-CVI) = ۰.۹۳, S-CVI= ۰.۹۲ for part A, S-CVI= ۰.۹۰ for part B, S-CVI= ۱.۰۰۰ for part C, S-CVI= ۰.۹۰ for part D, S-CVI= ۰.۹۵ for part E, and S-CVI= ۰.۹۱ for part F. Spearman correlation was above ۰.۷ for all items. Conclusions: The content validity, and inter-rater test-retest reliability of the data collection tool for the developed TPS was confirmed. Keywords: Trauma, Injury, Prognostic, Validity, Reliability

Trauma, Injury, Prognostic, Validity, Reliability