Attention all NRDM Users: Effective July 1, 2018 website security has been updated with new password requirements. See details in direct email, or contact Lucy Cafeo at
This e-mail address is being protected from spam bots, you need JavaScript enabled to view it
with any questions.
Tsui, F. C., Wagner, M. M., Dato, V. and Chang, C. C. (2001), "Value of ICD-9 coded chief complaints for detection of epidemics", Proceedings / AMIA ... Annual Symposium: 711-5.
Abstract: To assess the value of ICD-9 coded chief complaints for early detection of epidemics, we measured sensitivity, positive predictive value, and timeliness of Influenza detection using a respiratory set (RS) of ICD-9 codes and an Influenza set (IS). We also measured inherent timeliness of these data using the cross-correlation function. We found that, for a one-year period, the detectors had sensitivity of 100% (1/1 epidemic) and positive predictive values of 50% (1/2) for RS and 25% (1/4) for IS. The timeliness of detection using ICD-9 coded chief complaints was one week earlier than the detection using Pneumonia and Influenza deaths (the gold standard). The inherent timeliness of ICD-9 data measured by the cross-correlation function was two weeks earlier than the gold standard.
Keywords: *Disease/cl [Classification]
*Disease Outbreaks
Humans
*Population Surveillance/mt [Methods]
Predictive Value of Tests
Sensitivity and Specificity