The phrase "added to the study" is correct and usable in written English.
It can be used when referring to additional information, data, or elements that have been included in a research study or academic work.
Example: "The new findings were added to the study to enhance its overall conclusions."
Alternatives: "included in the study" or "incorporated into the study".
They were added to the study in the 1970s.
Women subjects, who were later added to the study, had the syphilis bacteria injected into the cervix.
Some subjects were added to the study In its early years to replace men who had dropped out of the program, but the number added is not known.
Patients validated the study design, measures and outcomes, but identified one area that should be added to the study protocol, symptom experience.
Further value was added to the study by using an impact scale to try and gauge the impact or "success" of the resulting application.
Additionally, two of our questionnaires (the BIS/BAS and the TPQ) were added to the study protocol after several subjects had already completed both sessions, so that the sample size from these questionnaires is relatively small.
When populated with relevant data, the proposed model can readily determine whether a particular city is low carbon or not thereby obviating the need for benchmarking and score adjustment every time a new city is added to the study list.
More children were added to the study because of a drop in their income during the economic downturn, leading researchers to investigate whether the decline could be attributed to an influx of new children with lower weights.
In 1971 more than 5,120 new recruits, referred to as the Offspring Cohort, were added to the study; the cohort was made up of adult children of individuals in the original study group and their spouses.
To address this, a single-sex boys' school was added to the study.
Also, exclusion of GBS patients with impending respiratory failure is added to the study limitations.
