The phrase "a study that included" is correct and usable in written English.
You can use it when referring to a research study that involved specific participants, variables, or elements as part of its methodology.
Example: "The study that included participants from various age groups provided valuable insights into the effects of the treatment."
Alternatives: "a study featuring" or "a study encompassing".
Her government recently helped finance a study that included interviews with more than 1,000 past and present gang members, male and female, across Central America.
The results of a study that included 400 tourists provide support for this model across various dimensions of sustainable tourism.
A study that included all cancers found that light drinking was protective; moderate drinking had no effect; and heavy drinking was detrimental.
Smokers wrongly believe that certain words, such as the names of colours, and long, slim cigarettes mean the brand is less harmful, according to a study, that included 2,000 Britons, published in Addiction.
When the United Nations Environment Program did a study that included air sampling, in 2008, it found plenty to worry about, but mostly what would be expected of a traffic-congested city: a lot of sulfur dioxide and nitrous oxides.
A study that included data from >1,800 patients found that 31% of patients had bone metastases at the time of RCC diagnosis, whereas 68% developed bone metastasis at a median period of 25 months throughout the course of their disease15.
In a study that included 100 male cases of Brucellosis between ages 20 45, ED was found in 68% [29].
In a study that included 44 patients with gliomas, Skogen et al. found that coarse texture entropy and uniformity could distinguish between low- and high-grade tumors.
Curricula and assessments can hinder the implementation of creativity in the classroom which was confirmed by a study that included European teachers (Cachia & Ferrari, 2010, pp. 28/52).
In a study that included both young and adult individuals, ULP change between Class I and Class II malocclusions did not show significant difference [40].
A study that included 1,098 patients who underwent a single hs-cTn sample on presentation to the emergency department with symptoms suggestive of an AMI identified the best cutoff value, separating AMIs from non-AMIs, to be much higher.
