TABLE 2—
Multivariable Logistic Regression of the Association Between Internet Use and HPV Vaccine Awareness and HPV Knowledge: National Cancer Institute’s 2007 Health Information National Trends Survey
| Aware of HPV Vaccine (n = 6853) |
Knowledgeable That HPV Is a Cause of Cervical Cancer (n = 4483) |
Knowledgeable That HPV Is Transmitted Through Sexual Contact (n = 4497) |
||||
| OR (95% CI) | P | OR (95% CI) | P | OR (95% CI) | P | |
| Internet use | <.001 | .02 | .64 | |||
| Nonuser | 0.42 (0.34, 0.51) | 0.70 (0.52, 0.95) | 1.07 (0.77, 1.45) | |||
| User (Ref) | 1.00 | 1.00 | 1.00 | |||
| Household income, $ | <.001 | .45 | .3 | |||
| < 20 000 | 0.70 (0.49, 1.01) | 1.24 (0.78, 1.98) | 1.14 (0.75, 1.72) | |||
| 20 000–34 999 | 0.85 (0.58, 1.24) | 0.89 (0.58, 1.35) | 1.06 (0.72, 1.55) | |||
| 35 000–49 999 (Ref) | 1.00 | 1.00 | 1.00 | |||
| 50 000–74 999 | 1.16 (0.82, 1.64) | 1.26 (0.81, 1.96) | 1.04 (0.73, 1.49) | |||
| ≥ 75 000 | 1.01 (0.74, 1.38) | 1.12 (0.76, 1.65) | 1.38 (0.95, 2.00) | |||
| Did not report | 0.61 (0.44, 0.85) | 0.97 (0.61, 1.56) | 1.05 (0.73, 1.52) | |||
| Education | <.001 | <.001 | <.001 | |||
| < high school | 0.80 (0.55, 1.15) | 0.81 (0.47, 1.41) | 0.64 (0.41, 0.99) | |||
| High school graduate (Ref) | 1.00 | 1.00 | 1.00 | |||
| Some college | 1.36 (1.11, 1.68) | 0.93 (0.68, 1.26) | 1.46 (1.08, 1.96) | |||
| ≥ college degree | 1.51 (1.20, 1.91) | 1.69 (1.21, 2.36) | 2.26 (1.70, 3.00) | |||
| Race/ethnicity | <.001 | <.001 | .05 | |||
| Non-Hispanic White (Ref) | 1.00 | 1.00 | 1.00 | |||
| Non-Hispanic Black | 0.64 (0.49, 0.83) | 0.54 (0.35, 0.83) | 0.61 (0.42, 0.88) | |||
| Hispanic | 0.56 (0.37, 0.84) | 1.26 (0.63, 2.51) | 1.12 (0.67, 1.84) | |||
| Other | 0.37 (0.25, 0.54) | 0.54 (0.34, 0.87) | 0.88 (0.52, 1.49) | |||
| Sex | <.001 | .03 | .56 | |||
| Male (Ref) | 1.00 | 1.00 | 1.00 | |||
| Female | 3.99 (3.33, 4.78) | 1.31 (1.03, 1.68) | 1.07 (0.85, 1.36) | |||
| HPV status | .34 | <.001 | <.001 | |||
| Ever | 2.12 (0.46, 9.75) | 6.91 (1.82, 26.23) | 5.44 (2.18, 13.58) | |||
| Never (Ref) | 1.00 | 1.00 | 1.00 | |||
| Children | .08 | .65 | .56 | |||
| None | 0.82 (0.64, 1.06) | 0.85 (0.61, 1.20) | 1.07 (0.82, 1.40) | |||
| ≥ 1 daughter (Ref) | 1.00 | 1.00 | 1.00 | |||
| No daughter | 0.66 (0.46, 0.95) | 0.88 (0.56, 1.39) | 1.21 (0.86, 1.71) | |||
Note. CI = confidence interval; HPV = human papillomavirus; OR = odds ratio. Also in model: age; employment; immigrant, insurance, and health status; having a regular physician; and survey mode. P values determined by adjusted Wald test.