The phrase "a study has confirmed that" is correct and usable in written English.
You can use it when referring to research findings that validate a particular claim or hypothesis.
Example: "A study has confirmed that regular exercise significantly improves mental health."
Alternatives: "research has shown that" or "findings indicate that".
It is only now that a study has confirmed that the emergence of such a deadly virus is theoretically possible.
A study has confirmed that spliceosome participated in this process (Ashwal-Fluss et al., 2014), in which proteins recognize sequence elements in flanking introns or exons, recruit other proteins, such as U1 snRNP, hnRNP proteins, and SR proteins, thus change RNA conformation and cause to-be-joined exons to approach each other (Kramer, 1996).
Well, a study has confirmed that there is a significant increase in open-rate of emails that don't posses a subject line - most likely because the email client is then displaying the direct contents of the email: Hello Name, blah blah.
A recent study has confirmed that while there is a learning effect that can increase the distance walked; when used as an outcome measure, one measurement is sufficient to show change in performance over time [ 47].
However, a previous study has confirmed that acute administration of an NK1 receptor antagonist (RP 67580) does aggravate inattentiveness in this test (Weir et al., 2014), suggesting that a lack of functional NK1 receptors could contribute to this behavioural abnormality.
A recent study has confirmed that exercise stress testing can be a useful method of risk stratification.
If your parents forced you to become an engineer or scientist because they said it would make you a ton of money, you'll be pleased to know that a new study has confirmed that, yes, indeed, the average salary of somebody in the Canadian oil, gas and/or energy sectors (STEM) is high as fuck compared to their stupid and poor social science counterparts (it me).
A new study has confirmed that the cumulative effects of rudeness can damage the productivity and performance of businesses.
A new study has confirmed that sexual attraction is affected by life experience – and you may be attracted to people who look like the first person you ever went out with for years to come.
A recent study has confirmed that Th1 cell responses to NTHi in COPD are deficient [46] and TLRs appear to be important in this mechanism.
A recent study has confirmed that there is no link between breast cancer risk and fertility treatments.
