Doctor Mili Kaitani a statistical researcher has published her findings that religion had a significant influence on people having multiple partners. [link]

In her report, she apparently goes on to state that "The more religious young men are, the more likely it is that they engage in having multiple partners," Dr Kaitani said Methodists were most likely to have multiple casual sexual partners followed by Seventh Day Adventists, Assemblies of God and then the Catholics.