This study should be interpreted with an understanding of
the limitations in its methodology. First, our estimates of
herbal medicine use represent a point prevalence: the percentage
of individuals who used herbal medications in the 2
weeks prior to the interview. This method would underestimate
those who used herbal medications on an as-needed
basis for medical conditions such as an upper respiratory infection
or upset stomach. Because the methodology selected
for chronic users of herbal medications, it is not unexpected
that herbal use correlated with the presence of several
chronic medical conditions. Second, although we found associations
between the use of herbal medicines and certain
medical conditions, we did not ask the subjects for the specific
reasons why they were taking a particular herbal medicine.
Finally, we did not determine how the subjects came
to be using a particular herbal medication; for example,
whether it was prescribed by a practitioner or recommended
by a family member or friend.
This study should be interpreted with an understanding ofthe limitations in its methodology. First, our estimates ofherbal medicine use represent a point prevalence: the percentageof individuals who used herbal medications in the 2weeks prior to the interview. This method would underestimatethose who used herbal medications on an as-neededbasis for medical conditions such as an upper respiratory infectionor upset stomach. Because the methodology selectedfor chronic users of herbal medications, it is not unexpectedthat herbal use correlated with the presence of severalchronic medical conditions. Second, although we found associationsbetween the use of herbal medicines and certainmedical conditions, we did not ask the subjects for the specificreasons why they were taking a particular herbal medicine.Finally, we did not determine how the subjects cameto be using a particular herbal medication; for example,whether it was prescribed by a practitioner or recommendedby a family member or friend.
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