The phrase "a main finding of" is correct and usable in written English.
It can be used when discussing the primary results or conclusions drawn from research or analysis.
Example: "A main finding of the study is that regular exercise significantly improves mental health."
Alternatives: "a key result of" or "a primary conclusion of".
A main finding of this paper is that low temperature cause increase in crude death rate (CDR) but this effect has decreasing trends.
A main finding of the study is that in summer the duration of "hot" and "very hot" heat stress was double in eastwest oriented streets compared to north south ones.
In addition, a main finding of this research is that there can be considerable spatial and temporal variability in the abundance and diversity of taxa, and specifically Proteaceous taxa, in landscapes in the Eocene.
A main finding of the study is that, following the introduction of health insurance in 1999, the newly introduced Sickness Funds have become the main players in the medical services market, introducing new bidding procedures and contracts for provision of medical services.
Accordingly, a main finding of our study, in which cardiac output was maintained stable, was the preservation of intestinal perfusion and oxygenation.
A main finding of this paper is that this jump-diffusion model, when calibrated to particular pairs of stocks in the data, cannot replicate some of the empirical patterns observed.
A main finding was the impact of the extended role initiative on the workload of the practice.
This is the main finding of a scientific study which was just published by a group of eminent global freshwater experts.
That is the main finding of a report released today on how well mobile phones work as Web-access devices.
The main finding of a recent PISA study was that provision within the country differs wildly.
Our main finding of a mid-Holocene pulse of thinning, complete by 3.5 ka, is insensitive to our interpretation based on the youngest exposure ages.
