The moderating role of race/ethnicity on associations between insurance status and HPV vaccination among women in the USA

OBJECTIVE To evaluate associations between insurance status and HPV vaccination. METHODS The present cross-sectional study analyzed data from women aged 18-26 years who participated in the National Health and Nutritional Examination Surveys 2009-2012 in the USA. RESULTS The study included 621 women; 424 (68.3%) had some type of insurance and 198 (30.6%) had received the HPV vaccine. In the multivariable model, we found significant interactions between race/ethnicity and insurance status on receiving HPV vaccination. Compared with individuals with no insurance, non-Hispanic black women with any type of insurance demonstrated increased likelihood of HPV vaccination (adjusted odds ratio [aOR] 3.63, 95% confidence interval [CI] 1.60-8.21; P=0.002). Among Mexican Americans, there was a negative association between having some insurance and HPV vaccination (aOR 0.35, 95% CI 0.15-0.81; P=0.007). For non-Hispanic black women, the association remained significant across all insurance types (private [aOR 4.29, 95% CI 1.67-11.00; P=0.003], Medicaid [aOR 2.86, 95% CI 1.15-7.13; P=0.025], and other [aOR 4.74, 95% CI 1.06-21.15; P=0.042]). Non-Hispanic white women with insurance other than private or Medicaid had a higher likelihood of HPV vaccination compared with uninsured individuals (aOR 8.36, 95% CI 2.79-25.05; P