The groups reflect those who were currently cohabiting, married, or neither at the time of being surveyed. They did that to ensure the groups were comparable in some respects regarding their histories in intimate relationships. To conduct the analyses, the authors (Nugent and Daugherty) selected only adults who had sexual intercourse with a partner of the opposite sex.
adults aged 18 to 44, sampled between 20. The report is based on a large, representative, national survey of U.S.
The CDC’s National Center for Health Statistics (NCHS) put out a report in May on the demographics of cohabitation, with interesting contrasts among adults who are cohabiting, married, or neither.
