Background Human papillomavirus (HPV) is the most common sexually transmitted disease in the US and the primary cause of cervical cancer. Vietnamese American women have the highest incidence rates of cervical cancer but one of the lowest HPV vaccination rates. Parental knowledge is an important predictor of HPV vaccination; however, little is known about HPV knowledge in the Vietnamese American community. We aimed to describe the HPV knowledge of Vietnamese mothers in Houston, Texas and their intention to vaccinate their daughters. Methods We conducted face-to-face interviews with Vietnamese mothers who had daughters aged 9–26 years. We collected data on demographics, acculturation, HPV knowledge, and vaccination intention. Knowledge scores (0–5) were calculated using 5 knowledge questions. We used logistic regression to identify predictors of HPV knowledge. Results Participants had low levels of acculturation by report of reading (31%) and writing (23%) English well. Less than 50% of participants (n=47) had heard of HPV, and among these, the mean HPV knowledge score was 4. Although only 1 in 3 had discussed HPV with their medical provider, nearly 86% of participants who had not heard of HPV would vaccinate their daughter if their doctor had recommended it. Good written English skills and belief that the HPV vaccine was not expensive were predictors of HPV awareness. Conclusions HPV awareness is low among less acculturated Vietnamese mothers in Houston. Future educational efforts about the role of HPV vaccine in preventing cervical cancer should be made in their language when targeting parents of a high risk Vietnamese population.

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