Summary of Health Care-associated
Pneumonia
Studies that have compared health care-associated to community-acquired
First, the presence of regional studies makes it difficult
to extrapolate results, and the inclusion of only culturepositive
patients in many studies may introduce a selection
bias.38 Geographic variation in bacterial etiology and nonhospital
care exists and may factor into clinical decisions,
because health care-associated pneumonia research has
been conducted throughout the world with inconsistent
results.9-11,13,17,39