The mechanism behind the increase in mortality is not
clear, and the question remains whether it is pneumonia that
increases the risk for mortality in elderly patients receiving
antipsychotic drugs. This question is not easy to assess,
because the baseline risk for fatal pneumonia is already
high in elderly patients with psychiatric diseases [8].
Nevertheless, several observational studies were recently
conducted to specifically explore the association between
the use of antipsychotics and the risk of fatal/nonfatal
community-acquired pneumonia (CAP), mainly in cohorts
of elderly patients