The phrase "affects groups" is correct and usable in written English.
It can be used when discussing the impact or influence of something on various groups of people or entities.
Example: "The new policy affects groups differently, depending on their specific needs and circumstances."
Alternatives: "impacts communities" or "influences populations".
That's undoubtedly frustrating to Republicans who have been working for nearly a decade to impose the ID requirement, knowing that it disproportionately affects groups that tend to vote Democratic – and who are likely to vote for Mr. Walker's recall.
The students' letter warns however: "Debt aversion disproportionately affects groups already facing barriers to education: the participation rate increase for the poorest students has stagnated and 18-year-olds from the most disadvantaged backgrounds are 2.4 times less likely to apply".
In fact, a misleading computation of the input probability distribution affects groups of bits at once [8].
Racism affects all people of color, even though it affects groups differently.
This is also consistent with the notion that although apoptosis often affects individual cells without involvement of inflammatory responses, necrosis affects groups of cells in association with an inflammatory response [ 18].
The virus affects groups of all ages, of both genders, and has an incubation period of three to twelve days.
Red colouration of the skin affects group interactions in several primate species.
We conducted two experiments to assess whether social familiarity affects group-joining decisions of adult P. persimilis females.
You find affected groups.
The Guardian has learned that the article is directly affecting groups that practise FGM.
A technology update would affect groups like the New York Racing Association, Churchill Downs and Magna Entertainment, the nation's three largest racetrack owners.
