The phrase "a decrease in the prevalence of" is correct and usable in written English.
It can be used when discussing a reduction in the occurrence or frequency of a particular condition, behavior, or phenomenon.
Example: "The study showed a decrease in the prevalence of smoking among teenagers over the past decade."
Alternatives: "a reduction in the occurrence of" or "a decline in the frequency of".
And, in a virtuous cycle, the decreased prevalence of crime fuels a decrease in the prevalence of crime.
Our analyses demonstrated that from 1994 to 2003, in 44 of 50 states, the increase in autism was completely offset by a decrease in the prevalence of children considered "cognitively disabled" or "learning disabled".
However, unlike previous studies, we observed a decrease in the prevalence of CH with age.
We observed a decrease in the prevalence of TTH with age, which is also in agreement with preexisting data.
Using the Gottschalk-Hansen classification approach also found a decrease in the prevalence of graduate jobs and a rise in overeducation during the 2000s.
If respiratory signs and symptoms predict future lung function loss, then improvements in population lung function over the past decade should have been paralleled by a decrease in the prevalence of these variables in the same population.
In other words, the sharp decline in the age-crime curve that occurs in early adulthood reflects both a decrease in the prevalence of offending and a decrease in the frequency of offending (Piquero et al. 2003).
Even though a delay in the institution of antibiotic therapy is markedly associated with a worse prognosis, antibiotic overuse should be avoided and interventions to reduce the duration of antibiotic therapy were associated with lower mortality and length of stay as well as a decrease in the prevalence of multidrug-resistant microorganisms [8, 9].
If Moffitt is correct, it follows from this statement that the crime increase in the 1980s and 1990s was primarily an increase in the prevalence of adolescence-limited offending, and that the crime decrease was primarily a decrease in the prevalence of adolescence-limited offending.
Blockchain technology can also help to bring more transparency to public records, which could lead to a decrease in the prevalence of corruption in many developing countries.
The increase in osteoblast number induced by the transgene was associated with a decrease in the prevalence of osteoblast apoptosis (Figure 3G).
