The phrase "a recent study compared" is grammatically correct and commonly used in written English.
It is typically used to introduce information from a research study or experiment that has been conducted in the recent past. Here is an example of how it can be used: "A recent study compared the effects of caffeine and sugar on cognitive function. The results showed that caffeine had a greater impact on memory retention than sugar."
A recent study compared the diagnostic accuracy of 234 physicians with 23 different computer programs.
Second, at a continental scale for the contiguous USA, a recent study compared the results of a physically based, 3D, fully coupled surface water groundwater model validated against water table depth data, against the WTR metric41.
A recent study compared global leaders in the diversified industrial sector – that is to say engineering, construction and production companies, who manufacture a wide variety of products – with their counterparts in South Korea, a country widely respected for its industrial exports.
Furthermore, a recent study compared the effectiveness of Microsatellite Length Polymorphism typing (MLP) as an alternative to Multi Locus Sequence Typing (MLST) for identification of Candida spp. strains39, showing that the former constitutes a viable alternative to the latter in certain applications.
A recent study compared the criteria for CM-R and TM in a headache specialty clinic.
A recent study compared US and CEUS in the diagnosis of carotid ulcerations having MDCTA as the reference method.
A recent study compared the arterial pressure waveform-derived cardiac index provided by the Vigileo system and pulse contour-derived cardiac index provided by the PiCCO device.
A recent study compared the effectiveness of different state anti-bullying laws on reducing bullying behaviors among high school students from 25 U.S. states (Hatzenbuehler et al. 2015).
To investigate a potential association between propofol anesthesia and cancer recurrence, a recent study compared the administration of opioid analgesia during the perioperative period with the administration of propofol for breast cancer patients undergoing mastectomy [22].
For instance, a recent study compared four different methods for extracting 12 organophosphates and carbamates from honey and concluded that the choice of the method depends on the targeted analytes (Blasco, et al. 2011).
Like nuc-1, crn-6 and crn-7 encode DNase II homologs, and a recent study compared the accumulation of TUNEL positive nuclei in strains containing mutations in these genes [12].
