TABLE 1

Selected Sexual Behavior and Reported Vaccination History in Females Aged 14 to 34 Years, According to Age Group, NHANES 2003–2006 and 2009–2012

Age Group/CharacteristicPrevaccine Era 2003–2006Vaccine Era 2009–2012
% (95% CI)% (95% CI)
14–19 yn = 1363n = 736
 HPV vaccination history
   ≥1 doseNA51.4 (47.3–55.3)
   3 dosesNA34.6 (30.3–39.2)
 Sexual behavior
  Ever had sex53.8 (50.6–56.9)50.4 (45.0–55.8)
   ≥2 sex partners in past year40.4 (35.1–46.0)a42.3 (36.8–48.1)
   ≥3 lifetime sex partners47.6 (42.3–52.9)52.2 (45.6–58.8)
20–24 yn = 432n = 470
 HPV vaccination history
   ≥1 doseNA32.6 (26.5–39.3)
  3 dosesNA18.1 (13.0–24.6)
 Sexual behavior
  Ever had sex91.3 (86.1–94.7)90.8 (85.9–94.1)
   ≥2 sex partners in past year*25.6 (21.0–30.7)34.6 (29.4–40.3)
   ≥3 lifetime sex partners*66.4 (60.8–71.5)77.4 (72.8–81.4)
25–29 yn = 403n = 424
 HPV vaccination history
   ≥1 doseNA14.7 (10.9–19.5)
  3 dosesNA8.8 (5.2–14.4)
 Sexual behavior
  Ever had sex95.0 (91.8–97.0)94.6 (91.1–96.7)
   ≥2 sex partners in past year22.6 (18.5–27.4)20.6 (15.5–27.0)
   ≥3 lifetime sex partners77.0 (69.8–83.0)76.1 (70.1–81.3)
30–34 yn = 389n = 428
 HPV vaccination history
   ≥1 doseNA3.3b (1.5–6.9)
  3 dosesNA1.2b (0.3–5.9)
 Sexual behavior
  Ever had sex97.6 (95.0–98.9)99.2 (98.1–99.6)
   ≥2 sex partners in past year12.8 (9.5–17.1)11.9 (8.5–16.4)
   ≥3 lifetime sex partners74.8 (69.9–79.1)74.1 (67.8–79.5)
  • Number of past year and lifetime partners among those who reported ever having sex. HPV vaccination history is according to self-report or parent report. NA, not applicable.

  • a Data limited to 2005 to 2006.

  • b RSE >30% or <10 cases.

  • * P < .05 from the Wald χ2 test.