Accuracy of Reporting Hypertensive Disorders in Pregnancy
Author Information
Author(s): Christine L. Roberts, Jane C. Bell, Jane B. Ford, Ruth M. Hadfield, Charles S. Algert, Jonathan M. Morris
Primary Institution: University of Sydney
Hypothesis
The study aims to assess the accuracy of hypertensive disorders of pregnancy reporting in population health data compared to medical records.
Conclusion
Pregnancy-related hypertension is reported with reasonable accuracy, but chronic hypertension is significantly under-reported.
Supporting Evidence
- 8.3% of women had pregnancy-related hypertension and 1.3% had chronic hypertension.
- Reporting sensitivities ranged from 23% to 99% and specificities from 96% to 100%.
- Women with severe preeclampsia were more likely to have their hypertension reported.
- Hospital data were found to be more accurate than birth data when discrepancies occurred.
Takeaway
This study looks at how well hospitals report high blood pressure during pregnancy. It found that while serious cases are reported well, milder cases often get missed.
Methodology
The study used linked birth and hospital discharge data and compared it with medical records from a validation study of 1200 women.
Potential Biases
Under-reporting may be biased towards more severe cases and those with adverse outcomes.
Limitations
The study may not fully represent all cases due to incomplete medical records and reliance on administrative data.
Participant Demographics
The study population included women giving birth in New South Wales, Australia, in 2002.
Statistical Information
P-Value
0.03
Confidence Interval
95%CI, 95.4% to 97.6%
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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