Health EquityTesting the Efficacy of a Web-Based Parent-Adolescent Sexual Communication Intervention Among Puerto RicansVaras-Díaz, Nelson PhD; Betancourt-Díaz, Elba PhD; Lozano, Alicia J. MS; Huang, Liming MS; DiNapoli, Lucia MES; Hanlon, Alexandra PhD; Villarruel, Antonia M. PhDAuthor Information Global and Sociocultural Studies, School of International and Public Affairs, Florida International University, Miami (Dr Varas-Díaz); Institute for Psychological Research, Universidad del Este, Carolina, Puerto Rico (Dr Betancourt-Díaz); and University of Pennsylvania School of Nursing, Philadelphia (Mss Lozano and DiNapoli, Mr Huang, and Drs Hanlon and Villarruel). Correspondence: Nelson Varas-Díaz, PhD, Global and Sociocultural Studies, School of International and Public Affairs, Florida International University, 11200 SW 8 St, SIPA-330, Miami, FL 33199 (firstname.lastname@example.org). Dr Nelson Varas-Díaz was supported by the National Institute on Drug Abuse (1K02DA035122) and this study by the National Institutes of Health (R01NRO13505). The authors are grateful for the support from their communities and the parents and adolescents who participated in the study.The authors declare no conflict of interest. Family & Community Health: January/March 2019 - Volume 42 - Issue 1 - p 30-43 doi: 10.1097/FCH.0000000000000209 Buy Metrics Abstract This randomized controlled trial tested the efficacy of a Web-based intervention to increase sexual communication between parents and adolescents. Parent/adolescent dyads (n = 660) were recruited from communities in the San Juan area and randomly assigned to the Cuídalos sexual communication or physical activity program. Parent assessments were obtained preintervention and at 3-, 6-, and 12-month follow-up. Parents in the experimental group reported significantly more sexual communication (ie, peer pressure, sexual prevention, protection, risk) over time than parents in the control group. Results support the efficacy of the Cuídalos Web-based format and provide insight into future Web-based sexual health interventions for this population. © 2019 Wolters Kluwer Health, Inc. All rights reserved.