Abstract B90: Predictors of HPV vaccine initiation and completion among Hispanic mothers of 11-17 year old daughters living along the Texas-Mexico border

Abstract

Abstract Background: Cervical cancer incidence and mortality are higher for Hispanic women along the Texas-Mexico border than for other female population groups. Incidence could be reduced if teenaged Hispanic girls received the HPV vaccine before they became sexually active. However, few Hispanic girls compared to U.S. girls receive all three HPV vaccine doses (31% vs 36%), which prevent cervical cancer. Mothers are crucial to the success of HPV vaccine uptake efforts, but few studies have examined predictors of vaccine initiation and completion. The purpose of this study is to assess predictors (socio-demographics, HPV and vaccine knowledge, and vaccine self-efficacy) of vaccine initiation and completion. Methods: We utilized baseline data from an outreach and education program utilizing promotoras and peer educators to deliver health education to mothers and daughters to increase HPV knowledge and promote HPV immunization. Our analyses utilized data from mothers of never vaccinated girls (n=371) to examine the association between the predictors and vaccine initiation and completion. To control for potential confounders, we conducted multivariable logistic regression analyses. Results: Findings showed both health insurance (Initiators AOR: 0.27; 95% CI= .09, .79; Completers AOR: 0.29; 95% CI= .10, .83) and program status (Initiators AOR: 3.04; 95% CI= 1.76, 5.26; Completers AOR: 2.21; 95% CI= 1.27, 3.58) were associated with HPV vaccine initiation and completion among mothers. Results also showed preferred language (AOR: 0.15; 95% CI= .04, .53) and health status (AOR: 0.52; 95% CI= .29, .92) were associated with series initiation. Conclusions: Findings suggest mothers who spoke English, had health insurance, and reported having good health were at lower odds of vaccine initiation. Also, mothers with health insurance also had lower odds of series completion. Mothers who participated in the program compared to the brochure only group were more likely to initiate and complete the vaccine series. These findings assist in identifying appropriate intervention strategies to enhance vaccine initiation in border communities at risk for cervical cancer. Citation Format: Daisy Y. Morales-Campos, Deborah A. Parra-Medina. Predictors of HPV vaccine initiation and completion among Hispanic mothers of 11-17 year old daughters living along the Texas-Mexico border. [abstract]. In: Proceedings of the Eighth AACR Conference on The Science of Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; Nov 13-16, 2015; Atlanta, GA. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2016;25(3 Suppl):Abstract nr B90.