Dear all,
Many thanks to Cesar Carcamo, Manuel Baruch, Miguel Gonçalves,slre, Richard
Lowry, Paul Seed, Alison Macfarlane, Karin Oudshoom, Elmer Virgil Villanueva
for help and comments on my query.
Most of the questions that were raised had to do with the validity of
estimating the number of illegal abortions, (namelly misclassification of
abortions, underreporting by GPs, correct diagnosis of hospitalised cases,
different complication rates).
Also the fact that the estimate was based on national figures and not on
random samples raised questions on the ussefulness of calculating CI.
One web site provides calculation of CI and related references.
(http://faculty.vassar.edu/~lowry/VassarStats.html).
Carlos Matias Dias
Centro de Epidemiologia e Bioestatística
Observatório Nacional de Saúde
Instituto Nacional de Saúde Dr. Ricardo Jorge
Av. Padre Cruz 1699 Lisboa codex
Portugal
Telef: + 01 7510535
Fax: + 01 7573671
Correio electrónico: [log in to unmask]
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