I'm going to write two short sentences and then I will ask my question:
- Women have the more risk for stroke more than men, but men have more risk for heart attack than women.
- Because of that, both of the genders should be aware about their life style.
The question: Can I say about the first sentence: "The statement of which I opened with, is true and it's proved scientifically." and will it have an equal meaning if I use "that" instead of "of which" (I mean if I replace them)?