© 2010 American Public Health Association DOI: 10.2105/AJPH.2009.177345
Ashley H. Schempf, Pauline Mendola, Brady E. Hamilton, and Diane M. Makuc are with the National Center for Health Statistics, Hyattsville, MD. Donald K. Hayes is with the Division of Reproductive Health, Centers for Disease Control and Prevention, Atlanta, GA. Correspondence: Correspondence should be sent to Ashley H. Schempf, Office of Analysis & Epidemiology, National Center for Health Statistics, 3311 Toledo Road, Room 6103, Hyattsville, MD 20782 (e-mail: ASchempf{at}cdc.gov). Reprints can be ordered at http://www.ajph.org by clicking the "Reprints/Eprints" link.
Objectives. We examined characteristics and birth outcomes of Asian/Pacific Islander (API) mothers to determine whether differences in outcomes existed between mothers of single race/ethnicity and multiple race/ethnicity. Methods. We used data from California and Hawaii birth certificates from 2003 through 2005 to describe variation in birth outcomes for API subgroups by self-reported maternal race/ethnicity (single versus multiple race or API subgroup), and we also compared these outcomes to those of non-Hispanic White women. Results. Low birthweight (LBW) and preterm birth (PTB) varied more among API subgroups than between mothers of single versus multiple race/ethnicity. After adjustment for sociodemographic and behavioral risk factors, API mothers of multiple race/ethnicity had outcomes similar to mothers of single race/ethnicity, with exceptions for multiple-race/ethnicity Chinese (higher PTB), Filipino (lower LBW and PTB), and Thai (higher LBW) subgroups. Compared with single-race non-Hispanic Whites, adverse outcomes were elevated for most API subgroups: only single-race/ethnicity Korean mothers had lower rates of both LBW (3.4%) and PTB (5.6%); single-race/ethnicity Cambodian, Laotian, and Marshallese mothers had the highest rates of both LBW (8.8%, 9.2%, and 8.4%, respectively) and PTB (14.0%, 13.7%, and 18.8%, respectively). Conclusions. Strategies to improve birth outcomes for API mothers should consider variations in risk by API subgroup and multiple race/ethnicity.
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