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A Review of Pregnancy-Related Maternal Mortality in Wisconsin, 2006-2010
Introduction:
Maternal mortality is a key indicator of maternal health and the general state of health care. This report summarizes maternal deaths in Wisconsin from January 2006 through December 2010.
Methods:
Maternal deaths were identified using death certificates and supporting links with infant birth and fetal death certificates. Suspected pregnancy-related maternal deaths were abstracted by a Wisconsin Maternal Mortality Review Team nurse abstractor. The entire team reviewed and analyzed these cases. If the death was deemed pregnancy related, a cause of death was determined, potential factors of avoidability were assessed, and recommendations for possible quality improvement were made.
Results:
Fifty cases were reviewed and 21 cases were determined to be pregnancy related. The Wisconsin pregnancy-related maternal mortality ratio was 5.9 deaths per 100,000 live births (3.9-9.0, 95% CI), with markedly higher rates for non-Hispanic black women. The most common cause of death was cardiovascular related, with 5 of the 7 deaths being ascribed to peripartum cardiomyopathy. Chronic medical problems were associated with 55% of pregnancy-related maternal deaths excluding obesity. Nineteen percent of the pregnancy-related deaths reviewed were considered to be avoidable, and almost half (48%) had substantive recommendations made to improve maternal health.
Conclusion:
Even though the Wisconsin pregnancy-related maternal mortality ratio is well below the national average, there remain stark racial disparities in maternal deaths and a number of avoidable pregnancy-related deaths that should be targeted for prevention.
