Increases in HPV vaccination rates were lower than expected.
Of the 19.9 million children who either have no vaccines or only partial DTP vaccination coverage, 55% live in 10 countries.
Much less improvement was seen among participants who were Black or lived in rural or disadvantaged areas.
Results point to a need to increase HPV vaccine uptake and screening, the authors say.
Worldwide HPV vaccination coverage is only 27% for girls and women with the first dose and 20% for full doses, study finds.
Positive provider attitude and self-efficacy toward screening, larger institution size, recent training, and college policy were tied to higher screening rates.
Relative to HPV-negative participants, those with HPV had a 40% higher risk of cardiovascular disease and twice the risk of coronary artery disease.
Precancer incidence has decreased 80% among screened women aged 20 to 24 years.
Researchers said the findings are concerning, especially because the rates of HPV-linked throat and tongue cancers in men are rising.
But rates of types 31/33/45, 47, and 45 were lower in vaccinated women, which the authors said suggests that the vaccines offer some cross-protection against these types.
