Pelvic girdle pain and sick leave The contingency table shows results from a Norwegian study about whether

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Pelvic girdle pain and sick leave The contingency table shows results from a Norwegian study about whether there was an association between pelvic girdle pain (PGP)

and sick leave during pregnancy (Malmqvist et al., 2015).

a. The study was retrospective. Explain what this means in the context of this study.

b. Explain what is meant by cases and controls in the headings of the table.

c. What proportion had been on sick leave, of those in the study who (i) had PGP and (ii) did not have PGP?

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Statistics The Art And Science Of Learning From Data

ISBN: 9781292164878

4th Global Edition

Authors: Alan Agresti, Christine A. Franklin, Bernhard Klingenberg

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