It shows that boys taught in singlesex schools are more likely to be divorced or separated from their partner than those who attended a mixed school by their early 40s.
(Why single-sex schools are bad for your health (if you're a boy); The Independent)

Is it Okay to paraphrase the sentence in the following way:

"It shows that boys taught in singlesex schools are more likely to be divorced or separated from their partner by their early 40s than those who attended a mixed school."

Thanks.