Table 1.
Variables Used in Regression Analysis
| Outcome Variable | Primary Independent Variable | Covariate |
| Any HPV | Condom use | Age |
| Any oncogenic HPV | Ethnicity | |
| Only nononcogenic HPV | Race | |
| Marital status | ||
| Has a steady partner | ||
| Amount of education | ||
| Current cigarette smoker | ||
| Log smoking pack-years | ||
| Monthly alcohol intake | ||
| Circumcised | ||
| Age at first sexual intercourse | ||
| Lifetime number of partners | ||
| Number of female partners in the past 3–6 mo | ||
| History of any sexually transmitted disease | ||
| Partner history of sexually transmitted disease | ||
| Partner with abnormal Pap smear in the past 6 mo | ||
| Country of residence | ||
| Positive for herpes simplex virus, syphilis, gonorrhea, and/or chlamydia | ||
| Frequency of sexual intercourse |
Abbreviation: HPV, human papillomavirus