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Table 3 Increase in HPV vaccine uptake per year (2009–2014) according to country background

From: Time trends in HPV vaccination according to country background: a nationwide register-based study among girls in Norway

  HPV vaccine uptakea Multivariable modelb
2009
n (%)
2014
n (%)
RD (95% CI) P-value
Country backgroundc
 Norway 19,706 (72.1) 22,023 (87.9) 2.7 (2.6 to 2.8) <  0.001
 Europe, America, and Oceania 684 (73.7) 936 (77.8) 1.0 (0.4 to 1.6) 0.001
 Middle East and Africa 755 (75.2) 954 (81.8) 1.3 (0.7 to 1.8) <  0.001
 Asia 751 (80.7) 805 (90.2) 1.6 (1.2 to 2.1) <  0.001
  1. HPV Human papillomavirus, RD Risk difference, CI Confidence interval
  2. aReceipt of at least one dose of HPV vaccine
  3. bRisk differences are estimated with linear binomial regression. The model included country background, year of birth (corresponding to programme year), parental education level, household income, number of siblings, maternal age at time of daughter’s birth, region of residence, and interaction terms between country background and year of birth. RDs correspond to the change in HPV vaccine uptake per year
  4. cList of countries in each category is provided in the Supplementary table