Volume 15, Number 4—April 2009
Research
Enhancing Time-Series Detection Algorithms for Automated Biosurveillance
Table 1
Distribution of hospital emergency department visits and mean count per day, by syndrome and dataset, for selected BioSense data used in algorithm modification study*
Syndrome | Department of Defense clinic diagnosis |
Hospital emergency department chief complaint |
|||
---|---|---|---|---|---|
Mean count/d | % Facility–syndrome days | Mean count/d | % Facility–syndrome days | ||
Botulism-like | 2.5 | 3.8 | 0.9 | 1.8 | |
Fever | 4.4 | 10.1 | 6.3 | 14.3 | |
Gastrointestinal | 8.9 | 13.7 | 14.5 | 14.7 | |
Hemorrhagic | 2.2 | 5.7 | 2.6 | 13.6 | |
Localized cutaneous lesion | 3.0 | 10.8 | 2.6 | 13.2 | |
Lymphadenitits | 1.1 | 4.8 | NA | 0† | |
Neurologic | 3.6 | 10.6 | 5.2 | 14.4 | |
Rash | 4.3 | 11.2 | 2.2 | 13.1 | |
Respiratory | 26.0 | 16.0 | 20.0 | 14.7 | |
Severe injury and death | 2.2 | 2.6 | NA | 0† | |
Specific infection | 3.2 | 10.7 | NA‡ | 0‡ | |
All | 7.7 | 100 | 7.8 | 100 |
*NA, not applicable.
†Facilities were not included because none had mean counts >0.5 for syndromes.
‡Chief complaint data are not assigned to this syndrome.