Compared to 뒤 문장의 문법이 궁금해요

“The result was that those motivated by economic gain lost an average of 4.1kg, compared to just 1kg for those not receiving a cash bonus.” 문장에서 compared to 뒤가 헷갈려요.
해석은 되는데, not receiving은 현재분사라 those를 꾸미는 것 아닌가요? 왜 for those가 쓰이는지 설명 부탁드려요.