The phrase "an increase in the occurrence of" is correct and usable in written English.
It can be used when discussing trends or changes in frequency related to a specific event, behavior, or phenomenon.
Example: "There has been an increase in the occurrence of natural disasters in recent years."
Alternatives: "a rise in the frequency of" or "an uptick in the incidence of".
Likely reasons for the increased duration of excess mortality include an increase in the occurrence of late relapse and of second cancers, as well as increased toxicity of treatment and prolonged survival of 'fatal' cases (Vora et al, 1998; Robison and Bhatia, 2003; Pui et al, 2005).
This is an indication of an increase in the occurrence of An. arabiensis within these high altitude areas, implying that this species is slowly establishing itself in this highland.
CftrΔF508/ΔF508/Kcnn4−/− double mutant mice are expected to show an increase in the occurrence of intestinal obstruction, and hence lethality with respect to single CF mice, due to an additional inhibition of calcium-activated secretion.
Elevated fuel loads are contributing to an increase in the occurrence of, and area burned by, severe wildfires in many regions across the globe.
Numerous health studies conducted worldwide suggest an increase in the occurrence of adverse health effects for populations living, working, or going to school near large roadways.
The text notes "an increase in the occurrence of factually incorrect slurs as 'Polish death camps' in news articles" and encourages readers to comment on and protest over such usages.
The increase in seismicity implies an increase in the occurrence probability of large earthquakes in these areas.
They also saw a significant increase in the occurrence of these trapped waves.
Recent increases in the occurrence of some extreme weather phenomena1,2 have led to multiple mechanistic hypotheses linking changes in atmospheric circulation to increasing probability of extreme events3,4,5.
These factors are now leading to increases in the occurrence of overweight/obesity in developing countries.
A decrease in monoamine oxidase activity is linked to an increase in occurrence of headaches.
