Studies using routine data versus specific data collection: What can we learn about the epidemiology of eclampsia and the impact of changes in management of gestational hypertensive disorders?
Evidence-based changes in practice, services and policy may impact on the spectrum of pregnancy hypertensive disorders at many levels. Demonstration of clinical benefit relies on assessment of changes in disease incidence or complications. Two main alternative observational methodologies may be used to investigate changes in disease incidence; the first using routinely collected data and the second with specially designed prospective data collection. Routinely collected data have been shown t...Expand abstract
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