Words similar to observational

Example sentences for: observational

How can you use “observational” in a sentence? Here are some example sentences to help you improve your vocabulary:

A recent case mix adjusted observational study of a large sample of ICU patients found that PAC use was associated with increased risk for mortality and resource use [ 28 ] .
This prospective, observational study included 1,225 consecutive hospital admissions of 599 adults with HIV infection.
Our findings require careful interpretation for three key reasons: (1) the absence of maternal serum for quantifying PCB and other environmental exposures; (2) the retrospective reporting of fish consumption by mothers in this observational study; and (3) the potential selectiveness of our sample based on licensed fish holders who agreed to participation.
Example 3 [ 17 ] , discussed below, shows how a valid meta-analysis may be based only on observational studies when clinical trials would not be ethical.
These questions lend themselves to exploration by a broad variety of disciplines (evolution, ecology, behavior, phylogenetics, phylogeography, genetics), approaches (experimental, observational, comparative, theoretical) and taxonomic systems.