Introduction: A recent study reported an association between inactivated influenza vaccine (IIV) and spontaneous abortion (SAB), but only among women who had also been vaccinated in the previous influenza season. We sought to estimate the association between IIV administered in three recent influenza seasons and SAB among women who were and were not vaccinated in the previous influenza season.
Methods: We conducted a case-control study over three influenza seasons (2012-13, 2013-14, 2014-15) in the Vaccine Safety Datalink (VSD).
Introduction: Inactivated influenza vaccine is recommended in any stage of pregnancy, but evidence of safety in early pregnancy is limited, including for vaccines containing A/H1N1pdm2009 (pH1N1) antigen. We sought to determine if receipt of vaccine containing pH1N1 was associated with spontaneous abortion (SAB).
Methods: We conducted a case-control study over two influenza seasons (2010-11, 2011-12) in the Vaccine Safety Datalink.
Objective: To estimate the association between spontaneous abortion and influenza vaccine receipt with a case-control study utilizing data from six health care organizations in the Vaccine Safety Datalink.
Methods: Women aged 18-44 years with spontaneous abortion during the autumn of 2005 or 2006 were identified using International Classification of Diseases, 9th Revision, Clinical Modification codes. Cases of spontaneous abortion at 5-16 weeks of gestation were confirmed by medical record review; date of fetal demise was based on ultrasound information when available.
Background: Although the risk of dying during childbirth or from complications afterward has been greatly reduced during the past 100 years, the current rate of approximately 1 death in 10,000 live births is still too high. The goal of the US Department of Health and Human Services is to reduce this rate by more than half by the year 2010.
Objective: To present Wisconsin data regarding pregnancy-associated deaths and pregnancy-related deaths.
Background: The infant mortality rate (IMR), low birth weight (LBW) rate, and first trimester entry into prenatal care (PNC) are indicators that reflect the health of a population.
Objective: To examine these indicators in Wisconsin from 1979 through 2001 and compare them to those of the United States, looking at trends and relative rank compared with other states.
Methods: Three-year averages for IMR, LBW, and PNC were analyzed for the periods 1979-1981, 1984-1986, 1989-1991, 1994-1996, and 1999-2001 from data sources published by the Centers for Disease Control and Prevention.