Characteristics of patients with tornado injuries seen in emergency departments based on chart review—Alabama, April 27–30, 2011.

<p>%) of patients.^a The ISS was known for 1,170 (83.7</p><p>^b Patients may be counted more than once due to multiple insurance types or diagnoses.</p><p>^c Unknown if FEMA approved tornado storm shelter or safe room or a basement in a private residence.</p><p>–30.^d Direct injuries include those caused by flying debris and structural collapse from the tornado on April 27; indirect injuries occurred nearly exclusively from April 28</p><p>^e Based on transfer information available in hospital records as well as linking patient records between hospitals. Patients with missing unique identifiers (name or date of birth) could not be linked.</p><p>^f Mean score chi-square test or Fisher's exact chi-square test (when sample size <5) used for overall group and each level compared to all other levels combined, unless stated otherwise.</p><p>^g Based on correlation chi-square test