TABLE 3.

GEE Models Examining the Association Between Age of First Sexual Intercourse and HPV Infection

HPV infection regressed on age of first sexual intercourse
Variableβ EstimateStandard ErrorOdds Ratio95% Confidence IntervalP Value
 Age of first sexual intercourse*−0.200.050.820.740.90.0001
HPV infection regressed on age of first sexual intercourse controlling for risk variables, partner characteristics, and participant race
Variableβ EstimateStandard ErrorOdds Ratio95%Confidence IntervalP Value
 Age of first sexual intercourse*−0.160.060.850.760.97.013
 Number of sexual partners0.500.141.651.262.16.0003
 History of STI0.800.342.231.144.35.019
 Drinking/drug use related to sexual behavior2.950.8019.14.0191.8.0002
 Partner’s lifetime number of sexual partners§0.060.031.061.011.12.014
 Partner’s age§0.140.051.151.041.27.006
 Participant’s race
  White−1.000.370.370.180.76.007
  Black1.580.554.851.6314.3.004
  Hispanic0.00080.451.00.422.411.00
  Asian−1.360.480.260.100.65.004
  • * Age assessed as a continuous variable; odds are per year of age.

  • This variable was assessed during the 6 months before testing positive for HPV.

  • Self-report of risky sexual behaviors while using alcohol or illicit drugs, measured using a 9-point scale: scale dichotomized into ever versus never practiced risky behaviors while using alcohol or illicit drugs.

  • § Assessed for main sexual partner.

  • “Other” race served as the reference group.