Question
2. As an epidemiologist you are going to investigate the effect of a drug suspected of causing malformations in newborn infants when the drug in
2. As an epidemiologist you are going to investigate the effect of a drug suspected of causing
malformations in newborn infants when the drug in question is taken by pregnant women during the
course of their pregnancy. As your sample you will use the next 200 single births occurring in a given
hospital. For each birth a medication history will be taken from the new mother and from her doctor.
[N.B.: These mothers are considered to have been followed prospectively during the entire course of
their pregnancy, because a complete and accurate record of drug use was maintained during pregnancy.]
The resultant data are:
Forty (40) mothers have taken the suspected drug during their pregnancy.
Of these mothers, 35 have delivered malformed infants. In addition, there are 10 other infants born with
malfunctions or malformations.
++++ answer the following+++++
e) What is the incidence in the non-exposed?
f) What measure of association are you going to use in this study?
g) Use a 2 x 2 table and interpret the results of calculating the measure of association.
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