Individuals who were consensually non-monogamous were found to take more precautions over their sexual health with a greater condom use during intercourse.

Of the total participants, 77.9 percent were identified as heterosexual, 14.4 percent as bisexual, 3.8 percent as gay/lesbian, and 4.0 percent opted to write in their own identity.
Similar levels were a result of infidelity. Around a quarter of individuals in a monogamous relationship admitted to cheating and not telling their partner, according to study leader Justin Lehmiller from Ball State University.
Though, individuals in CNM relationships had more sexual partners, the precautions they took did not seem to raise their rate of STIs above an imperfect implementation of monogamy, Lehmiller said. The study has been published in The Journal for Sexual Health.
Source-Medindia