Coding OSICS sports injury diagnoses in epidemiological studies: does the background of the coder matter?
AuthorFinch, CF; Orchard, JW; Twomey, DM; Saleem, MS; Ekegren, CL; Lloyd, DG; Elliott, BC
Source TitleBritish Journal of Sports Medicine
PublisherBMJ PUBLISHING GROUP
University of Melbourne Author/sFinch, Caroline
Document TypeJournal Article
CitationsFinch, C. F., Orchard, J. W., Twomey, D. M., Saleem, M. S., Ekegren, C. L., Lloyd, D. G. & Elliott, B. C. (2014). Coding OSICS sports injury diagnoses in epidemiological studies: does the background of the coder matter?. BRITISH JOURNAL OF SPORTS MEDICINE, 48 (7), pp.552-556. https://doi.org/10.1136/bjsports-2012-091219.
Access StatusOpen Access
OBJECTIVE: To compare Orchard Sports Injury Classification System (OSICS-10) sports medicine diagnoses assigned by a clinical and non-clinical coder. DESIGN: Assessment of intercoder agreement. SETTING: Community Australian football. PARTICIPANTS: 1082 standardised injury surveillance records. MAIN OUTCOME MEASUREMENTS: Direct comparison of the four-character hierarchical OSICS-10 codes assigned by two independent coders (a sports physician and an epidemiologist). Adjudication by a third coder (biomechanist). RESULTS: The coders agreed on the first character 95% of the time and on the first two characters 86% of the time. They assigned the same four-digit OSICS-10 code for only 46% of the 1082 injuries. The majority of disagreements occurred for the third character; 85% were because one coder assigned a non-specific 'X' code. The sports physician code was deemed correct in 53% of cases and the epidemiologist in 44%. Reasons for disagreement included the physician not using all of the collected information and the epidemiologist lacking specific anatomical knowledge. CONCLUSIONS: Sports injury research requires accurate identification and classification of specific injuries and this study found an overall high level of agreement in coding according to OSICS-10. The fact that the majority of the disagreements occurred for the third OSICS character highlights the fact that increasing complexity and diagnostic specificity in injury coding can result in a loss of reliability and demands a high level of anatomical knowledge. Injury report form details need to reflect this level of complexity and data management teams need to include a broad range of expertise.
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