Figure 3From: Knowledge about human papillomavirus and the HPV vaccine – a survey of the general populationDistribution of the predicted number of number of correct answers to the five questions which assessed knowledge of the HPV vaccine, stratified by ethnicity and recruitment location and adjusted for age, education, income, parental status and marital status. The adjusted mean for the number of correct answers in each stratum is denoted by dashed lines.Back to article page