The phrase 'important determinant in' is correct and usable in written English.
You can use this phrase when discussing something that affects the outcome of another thing. For example, "Access to quality education is an important determinant in a child's success later in life."
Curtis, S. J. et al. Primary tumor genotype is an important determinant in identification of lung cancer propagating cells.
Hypochloesterolemic therapy is intended for prolonged duration and safety is an important determinant in clinical success.
Importantly, the amount of MPTMS used is an important determinant in the development of a uniform mesoporosity.
"The most important determinant in economic terms of this decision seems to be past stock market returns" of the last six months to a year, he said.
Brad Hawkins, a Southwest spokesman, said that cost "is by far the most important determinant in how we operate".
The price for mobile services is the most important determinant in the way low-income households use mobile phones.
Still, even if recruiters are looking at a wider pool, the survey suggests that past experience with graduates of specific universities remains an important determinant in hiring.
Both scientific and societal concerns were responsible for driving those swings in perspective over time, whereby the scientific community and society viewed either nature or nurture as the more important determinant in causing diseases.
Patient recruitment is an important determinant in the success of the trials, yet little focus is placed on the decision making process of patients towards recruitment.
This review focuses on research implicating the cancer cell environment as a particularly important determinant in the emergence of drug resistance.
Scorpions have a venom gland which is an important determinant in contributing to their successful survival for more than 400 million years.
