context: The seemingly conflicting findings may be the result of the different diseases and populations of women that were studied, with weight perhaps playing a greater role in diabetes and fitness possibly more important for heart disease, Frank and others said.
I could understand the meaning of the population[size=18]s[/size], because what I often saw is "population".
I guess populations = age groups here.
In addition,
With = because
Top answer
Hello Jobb ! ) "non-NativeEnglish" authors of these texts. Your passage seems to be a good example for this....
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