Table 1.
Coding Criteria for Premarital Sex Indicator.
| Measures used |
| Wave IV |
| Total male + female lifetime vaginal, oral, or anal sexual partners |
| Total male + female vaginal, oral, or anal sexual partners prior to age 18 |
| Divorce status |
| Report of any concurrent sexual partners during first marriagea |
| First marriage began prior to Wave III |
| Age at first marriage |
| Wave III |
| Total lifetime vaginal sexual partners |
| Total vaginal, oral, or anal sexual partners since the summer of 1995 |
| Start and end dates for sexual relationships since the summer of 1995a |
| Sufficient conditions to code respondents as having had premarital, nonspousal sexual partners (“I”) |
| In first marriage at Wave IV, report more than one lifetime partner, no nonspousal partners concurrent with marriage |
| Unmarried as of Wave III, more than one partner ever as of Wave III |
| Married prior to Wave III, report any sexual relationships having ended prior to when marriage started |
| Married after age 18, more than one partner prior to age 18 |
| Sufficient conditions to code respondents as having had no premarital, nonspousal sexual partners (“0”) |
| No more than one partner reported on any Wave IV or Wave III measure |
| No more than one partner reported prior to Wave III, married by Wave III |
| No more than one partner reported prior to age 18, married by age 18 |
Note: Above criteria allowed for logical certainty of categorization for 94% of respondents. Missing data for the remaining 6% of cases were addressed using multiple imputation (m = 10).
a
Measure only available for a subset of respondents.