Clinical and laboratory observationInfantile Hemangiomas: An Emerging Health Issue Linked to an Increased Rate of Low Birth Weight Infants
Section snippets
Methods
Children with a diagnosis of IH (n = 420) prospectively enrolled from 2 sites (University of California San Francisco and Children's Hospital of Wisconsin) as part of a multicenter cohort study of IH1 were compared with 353 children under age 2 years evaluated at these same 2 sites for diagnoses other than IH. The diagnosis of IH was confirmed by physical examination and clinical behavior of the lesions. All control subjects underwent a full skin examination that confirmed the absence of IH. A
Results
The mean age at study enrollment was 10.3 months in the control group and 11.1 months in the IH group. Those in the IH group were more likely to be female (P < .0001), white non-Hispanic (P < .0001), preterm (P < .0001), and LBW (P < .0001). Seventeen infants in the control group were the product of multiple gestation, compared with 42 infants in the IH group (P = .0064). Children born to women who had experienced miscarriages were more likely to have IH (P = .004). Chorionic villous sampling
Discussion
Besides reaffirming several known risk factors for IH (specifically female sex, white non-Hispanic race/ethnicity, and preterm birth), our findings demonstrate for the first time that LBW rather than permaturity per se is the most significant risk factor for developing IH. The prevalence of preterm and LBW infants in the United States continues to rise. In 2005, 8.2% of infants born in the United States had a birth weight < 2500 g, the highest percentage recorded since 1968, exceeding that in
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This study was funded by the Dermatology Foundation, Children's Research Institute, and American Skin Association. The authors have no potential conflicts of interest to declare.
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A list of members of the Hemangioma Investigator Group is available in the Appendix (www.jpeds.com).