• Liviana Da Dalt, Barbara Andreola, Paola Facchin, Marzia Gregolin, Andrea Vianello, and Pier Antonio Battistella.
• Pediatric Emergency Department, University of Padova, Padova, Italy. dadalt@pediatria.unipd.it
• J. Pediatr. 2007 Mar 1;150(3):274-8.

ObjectiveTo study selected factors associated with vomiting after minor head trauma in children.Study DesignDuring a 1-year study, 1097 children with a minor head injury were consecutively discharged from the pediatric emergency department; 162 had associated vomiting. A case-control study was conducted, with each subject matched with 2 children of the same age group with a minor head injury who did not have associated vomiting. Final analysis was conducted in 148 case subjects and 296 matched control subjects.ResultsWith univariate analysis, a personal history of recurrent headache (6.1% versus 2.4%), motion sickness (27% versus 11.8%), and recurrent vomiting (6.1% versus 0.7%) were significantly more common in the vomiting group, as was a family history of recurrent headache in parents (45.9% versus 27%) or motion sickness in parents (26.4% versus 15.2%) or siblings (14.2% versus 3.7%). The strongest predictors of vomiting were a personal history of recurrent vomiting (odds ratio, 5.90; 95% CI, 1.18-29.47), motion sickness (odds ratio, 2.34; 95% CI, 1.32-4.10), headache at the time of the injury (odds ratio, 4.37; 95% CI, 2.23-8.57), and a strong family history of the same recurrent problems (odds ratio, 1.66; 95% CI, 1.29-2.13).ConclusionsPost-traumatic vomiting is significantly related to personal or familial predisposition to vomit rather than to the presence of intracranial lesions.

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